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  • Five(ish) Minute Drum Lesson - African Drumming: Lesson 1: The Djembe

    Five(ish) Minute Drum Lesson - African Drumming: Lesson 1: The Djembe

    131 views / 0 likes - added

    Farai introduces you to the djembe and talks about its historical importance to the Mali Empire. For more on music and dancing, visit artsedge.kennedy-center.org.

  • 05:04 Making A TED-Ed Lesson: Visualizing Complex Ideas

    Making A TED-Ed Lesson: Visualizing Complex Ideas

    637 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/making-a-ted-ed-lesson-visualizing-complex-ideas View original lesson: http://ed.ted.com/lessons/exploration-on-the-big-data-frontier-tim-smith How can animation convey complex, intangible concepts? A visual met

  • 08:46 Popular How To Play Star Wars Theme on Guitar EASY LESSON with tabs

    How To Play Star Wars Theme on Guitar EASY LESSON with tabs

    1,388 views / 1 likes - added

    How To Play Star Wars Theme on Guitar EASY LESSON with tabs Subscribe for more videos : http://bit.do/guitarraviva3

  • 17:58 How To Draw A Spring Robot: Fun Art Lesson For Kids Of All Ages

    How To Draw A Spring Robot: Fun Art Lesson For Kids Of All Ages

    188 views / 0 likes - added

    Hey art friends! It's Rob from Art For Kids Hub, and we're back with another fun drawing lesson just for you! This time, we'll be learning how to draw a funny Spring Robot! Join Jack and me as we guide you step-by-step in creating a cute robot sitting on

  • 04:32 Paul McCartney's Piano Lesson

    Paul McCartney's Piano Lesson

    228 views / 0 likes - added

    Paul McCartney teaches a piano lesson. The Beatles' singer/songwriter shares his approach to learning and writing songs on the piano. John Lennon used this approach when writing "Imagine" as has John Legend when writing some of his songs. He's speaking wi

  • 18:19 Claire Teaches You Cake Assembly (Lesson 4) | Baking School | Bon Appétit

    Claire Teaches You Cake Assembly (Lesson 4) | Baking School | Bon Appétit

    355 views / 1 likes - added

    Stacking, spreading, slicing...Saffitz-ing? The cake components are ready to roll, but combining them all together is a science in itself. Fortunately, Professor Claire has done the research for us! If you build it, they will succumb to a multi-layer cake

  • 20:40 Claire Teaches You Cake Frosting (Lesson 3) | Baking School | Bon Appétit

    Claire Teaches You Cake Frosting (Lesson 3) | Baking School | Bon Appétit

    370 views / 0 likes - added

    From fluffy Italian Meringues to savory Swiss Buttercreams, there’s a wild world of frostings in the mix. Claire’s got a signature style to whip ‘em all up, plus all the tricks to save your spreads when disaster strikes. And yes, you’re definitely allowed

  • 22:49 Claire Teaches You Cake Decoration (Lesson 5) | Baking School | Bon Apptit

    Claire Teaches You Cake Decoration (Lesson 5) | Baking School | Bon Apptit

    353 views / 0 likes - added

    Claires favorite subject in Baking School? Art class! There will be sprinkles, there will be pastry tip fails, and for some reason, there will be an actual blow torch toasting some coconut meringue magic. Join Claire in the Test Kitchen as she teaches you

  • 02:37 Ben 10 | Rustbuggy Driving Lesson | Cartoon Network

    Ben 10 | Rustbuggy Driving Lesson | Cartoon Network

    461 views / 0 likes - added

    Ben hops into the Rustbuggy for a driving lesson along the sand dunes of Cape Cod. Things take a turn for the worst when Kevin 11 comes to stir up trouble! Episode: Franken-Fight SUBSCRIBE: http://cartn.co/subscribe ABOUT BEN 10: Ben 10 introduces fun-lov

  • 19:15 Claire Teaches You Cake Filling (Lesson 2) | Baking School | Bon Appétit

    Claire Teaches You Cake Filling (Lesson 2) | Baking School | Bon Appétit

    443 views / 0 likes - added

    Claire Saffitz teaches us the ins and outs of the sweet stuff spread between cake layers, with tropical twists, creamy caramels, and of course, chocolate. Lot and lots of chocolate. As far as cakes go, it’s what’s on the inside that counts! (Well, that an

  • 19:12 Popular SPOILED GIRLS Think They OWN THE WORLD, Get Taught A Lesson! | Dhar Mann

    SPOILED GIRLS Think They OWN THE WORLD, Get Taught A Lesson! | Dhar Mann

    1,970 views / 5 likes - added

    Don't forget to SUBSCRIBE to my channel by clicking here http://bit.ly/DharMannYouTube **Make sure you CLICK THE BELL ICON so you can get notifications when my next video goes up so you dont miss anything!REMEMBER - We're not just telling stories, we're c

  • 08:00 Popular Kid Steals Money From A Wallet, Stranger Teaches Her A Lesson | Dhar Mann

    Kid Steals Money From A Wallet, Stranger Teaches Her A Lesson | Dhar Mann

    2,269 views / 10 likes - added

    This is an amazing video, this helps kids learn to be honest! The credit goes to Dhar Maan Studios for making this. Hope you learn a lesson from this inspirational video! Also click here to view Dhar Maan's YouTube channel. https://www.youtube.com/channel

  • Sir David Attenborough Gives a Lesson on Seeds | The Green Planet | BC Earth

    Sir David Attenborough Gives a Lesson on Seeds | The Green Planet | BC Earth

    137 views / 0 likes - added

    Giant seeds, tiny seeds, floaty seeds and flying seeds. Sir David Attenborough gives us a quick biology lesson in all of them. #GreenPlanet will open your eyes to an undiscovered kingdom this is life from the perspective of plants. Discover more https://w

  • 09:21 How To Draw A Spring Mandala: Step-by-Step Art Lesson for All Ages

    How To Draw A Spring Mandala: Step-by-Step Art Lesson for All Ages

    412 views / 1 likes - added

    Hey art friends, today we're capturing spring with a new drawing lesson! Join Teryn and I as we guide you step-by-step on how to draw a Spring Mandala. We'll start by drawing a radiant sun at the center of our mandala. Next, we'll create a layer of ground

  • 05:29 How To Draw A Funny Cartoon Pencil - Easy step-by-step art lesson for kids and adults!

    How To Draw A Funny Cartoon Pencil - Easy step-by-step art lesson for kids and adults!

    139 views / 0 likes - added

    Hey, art friends! Today, Teryn and I are learning how to draw a funny cartoon pencil together. This lesson is super fun and really easy. Just a few steps, and you can create your own cartoon pencil. What's even cooler? You can add a different funny face a

  • Amazing BUBBLE TRICKS lesson !

    Amazing BUBBLE TRICKS lesson !

    126 views / 0 likes - added

    How to make amazing Bubble tricks with your hands by Doctor Bubble.soundtrak:Amelie [2001] - Yann Tiersen- Les Jours Tristes (instrumental)

  • 02:01 Intro to Angles Lesson for Kids

    Intro to Angles Lesson for Kids

    154 views / 0 likes - added

    FULL EPISODES: https://www.GenerationGenius.com/watch

  • 24:01 Gerard Schwarz gives a Conducting Lesson

    Gerard Schwarz gives a Conducting Lesson

    615 views / 0 likes - added

    Great video that teaches you about music and how a conductor conducts music from a musical score. You will learn what all those arm movements mean and basic musical notation.Beethoven's famous Symphony No. 5 in C Minor is used as an example as Gerard Schw

  • 22:27 Popular Scrap Mechanic - A Lesson From Squid

    Scrap Mechanic - A Lesson From Squid

    1,674 views / 3 likes - added

    Welcome to my first video on Scrap Mechanic. In this video Ballistic Squid teaches me the basics of the game and I attempt to build a buggy. Twitter - @stampylongnose Facebook - www.facebook.com/stampylongnose UK Shop - http://stampy.spreadshirt.co.uk US

  • 47:36 Completing the square - Live algebra lesson

    Completing the square - Live algebra lesson

    636 views / 0 likes - added

    Do you need help with your algebra homework? Send photos of any problems you need help with to LiveStream@MathMeeting.com. Today I am focusing on solving quadratic equations by completing the square. I will help you live right here on this live stream :)

  • 04:59 It's Not What It Looks Like | The Lesson | Gumball | Cartoon Network

    It's Not What It Looks Like | The Lesson | Gumball | Cartoon Network

    170 views / 0 likes - added

    Click to watch more of The Amazing World of Gumball - https://bit.ly/35wZzDJFollow us for all the latest Gumball news! Website - http://www.theamazingworldofgumball.com/ Facebook - http://bit.ly/2foqTcOGumball, the amusing blue cat with a giant head and h

  • 04:58 It's Not What It Looks Like | The Lesson | Gumball | Cartoon Network

    It's Not What It Looks Like | The Lesson | Gumball | Cartoon Network

    146 views / 0 likes - added

    Click to watch more of The Amazing World of Gumball - https://www.youtube.com/watch?v=Fu2BjEH4u84&list=PL77ED97B132C66551Gumball, the amusing blue cat with a giant head and his best buddy Darwin, a pet goldfish who sprouted legs, step up the hilarity and

  • 02:01 Powers of 10 Math Lesson for Kids

    Powers of 10 Math Lesson for Kids

    161 views / 0 likes - added

    FULL EPISODES: https://www.GenerationGenius.com/watch

  • 02:01 Equivalent Fractions Math Lesson for Kids

    Equivalent Fractions Math Lesson for Kids

    244 views / 0 likes - added

    FULL EPISODES: https://www.GenerationGenius.com/watch

  • 02:01 Intro to Multiplication Math Lesson for Kids

    Intro to Multiplication Math Lesson for Kids

    141 views / 0 likes - added

    FULL EPISODES: https://www.GenerationGenius.com/watch

  • 02:01 Addition & Subtraction Within 1000 Lesson for Kids

    Addition & Subtraction Within 1000 Lesson for Kids

    173 views / 0 likes - added

    FULL EPISODES: https://www.GenerationGenius.com/watch

  • 21:03 Claire Teaches You Cake Baking (Lesson 1) | Baking School | Bon Appétit

    Claire Teaches You Cake Baking (Lesson 1) | Baking School | Bon Appétit

    500 views / 1 likes - added

    Bon Appétit's Baking School is in session! In the series premiere, Claire reveals her trade secrets for baking light and airy cake layers, using three unique methods. At last, you’ll finally understand how gluten actually works. Check out Claire's Instagr

  • 02:01 Multiplying Fractions by Whole Numbers Math Lesson for Kids

    Multiplying Fractions by Whole Numbers Math Lesson for Kids

    150 views / 0 likes - added

    FULL EPISODES: https://www.GenerationGenius.com/watch

  • 02:01 Convert Units of Measurement Math Lesson for Kids

    Convert Units of Measurement Math Lesson for Kids

    140 views / 0 likes - added

    FULL EPISODES: https://www.GenerationGenius.com/watch

  • 03:58 Darwin puts two and two together | The Lesson | Gumball | Cartoon Network

    Darwin puts two and two together | The Lesson | Gumball | Cartoon Network

    101 views / 0 likes - added

    Click to watch more of The Amazing World of Gumball - https://www.youtube.com/watch?v=Fu2BjEH4u84&list=PL77ED97B132C66551Gumball, the amusing blue cat with a giant head and his best buddy Darwin, a pet goldfish who sprouted legs, step up the hilarity and

  • 05:59 Gravity Powered Escapement Wheel....  Simple machine lesson

    Gravity Powered Escapement Wheel.... Simple machine lesson

    420 views / 0 likes - added

    This escapement wheel is a good example of showing how simple machines work together in the performance of a task, in this case turning a flywheel. I have found that students have a natural curiosity to explore these types of devices and are very interest

  • 11:32 Bugs Bunny Builders | Lesson Learned  | Compilation | @wbkids

    Bugs Bunny Builders | Lesson Learned | Compilation | @wbkids

    203 views / 0 likes - added

    Sometimes even the Looney Builders make mistakes, but they know that they can only learn from these mistakes! Grab those hard hats and fasten that tool belt, a Looney construction crew is heading to town! Bugs Bunny Builders is coming to Cartoonito on Car

  • 01:30 Popular Watermelon Lesson I Uncle Grandpa I Cartoon Network

    Watermelon Lesson I Uncle Grandpa I Cartoon Network

    708 views / 1 likes - added

    When Uncle Grandpa gets a watermelon stuck in his mouth, he is unable to ask for help and people interpret it as a comedy routine. As Uncle Grandpa's popularity rises, his friendships and morale suffer. CN GAMES: http://bit.ly/CNGames SUBSCRIBE: http://bi

  • 08:48 How to Draw a Mom and Baby Koala: Step-by-Step Art Lesson

    How to Draw a Mom and Baby Koala: Step-by-Step Art Lesson

    427 views / 1 likes - added

    Hey there, it's Rob from Art For Kids Hub, and I've got my buddy Austin here with me for another super fun drawing tutorial! This time, we're going to show you how to draw an adorable mom and baby koala! Whether you're a kid, parent, or teacher, you'll lo

  • 02:04 A Lesson from Wonder Woman | Scooby-Doo and Guess Who? | Cartoon Network

    A Lesson from Wonder Woman | Scooby-Doo and Guess Who? | Cartoon Network

    546 views / 3 likes - added

    When a marble statue comes to life at a museum in Greece, our gang is caught between a braying minotaur and a sword-wielding Wonder Woman!Episode: The Scooby of a Thousand Faces!SUBSCRIBE: http://cartn.co/subscribeWATCH MORE: http://cartn.co/moreminisodes

  • 05:20 Popular Gumball | Teaching Mom A Lesson | The Limit | Cartoon Network

    Gumball | Teaching Mom A Lesson | The Limit | Cartoon Network

    751 views / 1 likes - added

    Search for Toon Cup on your App Store or play the web game on www.cartoonnetwork.co.uk/tooncup Search for Toon Cup on your App Store or play the web game on www.cartoonnetwork.co.uk/tooncup Subscribe to The Amazing World of Gumball - http://bit.ly/2gjL91J

  • 01:10 Chef's Handwashing Lesson | Total Dramarama | Cartoon Network

    Chef's Handwashing Lesson | Total Dramarama | Cartoon Network

    555 views / 1 likes - added

    Check in with Cartoon Network http://cartn.co/YT-CNCheckInChef teaches the kids how to wash their hands!SUBSCRIBE: http://cartn.co/subscribeWATCH MORE: http://cartn.co/moreminisodesAbout Cartoon Network:Welcome to Cartoon Network's YouTube Channel, your d

  • 04:18 Granny Jojo Teaches Richard a Lesson | Gumball | @cartoonnetworkuk

    Granny Jojo Teaches Richard a Lesson | Gumball | @cartoonnetworkuk

    49 views / 0 likes - added

    After Richard has an accident, Granny Jojo comes to look after everyone.Play Free Gumball Games - https://www.cartoonnetwork.co.uk/show/gumball/gamesSubscribe to watch more awesome videos - https://goo.gl/hRAVDf Welcome to the official Cartoon Network UK

  • 04:44 Darwin Teaches His Bully A Lesson | The Sucker | Gumball | Cartoon Network

    Darwin Teaches His Bully A Lesson | The Sucker | Gumball | Cartoon Network

    379 views / 1 likes - added

    Click to watch more of The Amazing World of Gumball - https://bit.ly/35wZzDJFollow us for all the latest Gumball news! Website - http://www.theamazingworldofgumball.com/ Facebook - http://bit.ly/2foqTcOGumball, the amusing blue cat with a giant head and h

  • 17:31 World Class Prodigy Violinist Chloe Chua Gives TwoSet a Violin Lesson

    World Class Prodigy Violinist Chloe Chua Gives TwoSet a Violin Lesson

    439 views / 1 likes - added

    Find Chloe here: https://youtu.be/w15J-JFjfgg Practice Merch!: https://www.twosetapparel.com Follow TwoSet Apparel: https://www.instagram.com/twosetapparel/ Submit your music memes: http://www.reddit.com/r/lingling40hrs ***Passionate about Classical Music

  • 02:01 Compare Non-Equivalent Fractions | Math Lesson for Grades 3-5 | Mini-Clip

    Compare Non-Equivalent Fractions | Math Lesson for Grades 3-5 | Mini-Clip

    312 views / 0 likes - added

    FULL EPISODES: https://www.GenerationGenius.com/watch

  • 16:54 Teacher Delivers Remote Virtual Reality Math Lesson on Angles using Half Life: Alyx

    Teacher Delivers Remote Virtual Reality Math Lesson on Angles using Half Life: Alyx

    374 views / 0 likes - added

    Review of Angle Vocabulary for Homeschooling Week because I have to teach today, but Half Life Alyx just came out. Want to support my classroom? http://www.donorschoose.org/charlescoomber Twitter – @charlescoomber

  • 02:01 Intro to Fractions Using the Number Line | Math Lesson for Grades 3-5 | Mini-Clip

    Intro to Fractions Using the Number Line | Math Lesson for Grades 3-5 | Mini-Clip

    369 views / 0 likes - added

    FULL EPISODES: https://www.GenerationGenius.com/watch

  • 02:01 Numbers in Expanded & Word Form (1000 & Beyond) | Math Lesson for Grades 3-5 | Mini-Clip

    Numbers in Expanded & Word Form (1000 & Beyond) | Math Lesson for Grades 3-5 | Mini-Clip

    137 views / 0 likes - added

    FULL EPISODES: https://www.GenerationGenius.com/watch

  • 01:46 Popular Spider Finger Family | Fun Children's Lesson, Kids English Song Video, Catchy Melody, Kindergarten

    Spider Finger Family | Fun Children's Lesson, Kids English Song Video, Catchy Melody, Kindergarten

    931 views / 0 likes - added

    Children Love Singing this Catchy Song to Learn the Names of the Members of the Family. These Funny Animated Spiders & Simple Music Make Learning Fun. Thanks for Watching, Sharing & Commenting Subscribe for Fresh Uploads 3 Times a Week! http://bit.ly/YOUT

  • Popular Cas Cas Asalato Lesson - Learn How to Play Aslatua - Africa Heartwood Project

    Cas Cas Asalato Lesson - Learn How to Play Aslatua - Africa Heartwood Project

    988 views / 0 likes - added

    In this video you learn the basic technique for how to play the Aslatua. A small shaker from West Africa.Buy it Here:http://www.djembedirect.com/item/shakers/aslatua_cascas_kashakaThe aslatua (ah-SLAH-too-uh) is a unique hand percussion toy that will capt

  • 03:58 Gumball finds a subtle way to achieve good grades | The Lesson | Gumball | Cartoon Network

    Gumball finds a subtle way to achieve good grades | The Lesson | Gumball | Cartoon Network

    161 views / 0 likes - added

    Click to watch more of The Amazing World of Gumball - https://www.youtube.com/watch?v=Fu2BjEH4u84&list=PL77ED97B132C66551Gumball, the amusing blue cat with a giant head and his best buddy Darwin, a pet goldfish who sprouted legs, step up the hilarity and

  • 02:30 Popular Finger Family Penguins | Early Childhood Lesson, Learn English Song, Teach Members Of The Family

    Finger Family Penguins | Early Childhood Lesson, Learn English Song, Teach Members Of The Family

    892 views / 0 likes - added

    This Kids Vid from our "Finger Family Collection" Teaches the Names of All the Members of the Family - Father, Mother, Brother, Sister & Baby with our Penguin Family. Thanks for Watching, Sharing & Commenting Subscribe for Fresh Uploads 3 Times a Week! ht

  • 05:16 How To Draw A Cartoon Acorn

    How To Draw A Cartoon Acorn

    547 views / 1 likes - added

    Yesterday we drew a cute squirrel, so today we have to draw an acorn! This lesson is super fun and easy, perfect for younger artists. This lesson also works well for decorating your home and classroom for fall!

  • 04:19 Making sense of spelling - Gina Cooke

    Making sense of spelling - Gina Cooke

    689 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/making-sense-of-spelling-gina-cooke What can spelling tell us about relationships between words? While spelling may sometimes seem random or unexpected, this lesson illuminates how peeling back the layers of spe

  • 02:36 Elephant Encounter - Guiding through a tricky situation!

    Elephant Encounter - Guiding through a tricky situation!

    529 views / 0 likes - added

    Lee Fuller and Alan Yeowart. Filming a lesson on Elephant behaviour quickly turned to a lesson on Keeping Calm in the Face of Immediate Danger!

  • 12:18 Popular How To Draw Three Wise Men - Nativity

    How To Draw Three Wise Men - Nativity

    885 views / 0 likes - added

    Yay, we're adding another lesson to our nativity scene! Today, we're learning how to draw three wise men. This lesson is a lot of fun, especially if you take the time to add your own details, colors, and background. Have fun using your creativity to make

  • 12:01 Popular How To Draw A Realistic Jingle Bell

    How To Draw A Realistic Jingle Bell

    1,052 views / 0 likes - added

    How to draw a realistic jingle bell! Now, this lesson may look challenging, but we're going to take it one step at a time. It'll shock you how easy this lesson actually is. You'll only need four colored pencils (orange, brown, red, and black).

  • 04:33 Popular How big is a mole? (Not the animal, the other one.) - Daniel Dulek

    How big is a mole? (Not the animal, the other one.) - Daniel Dulek

    1,356 views / 0 likes - added

    View full lesson here: http://ed.ted.com/lessons/daniel-dulek-how-big-is-a-mole-not-the-animal-the-other-one The word "mole" suggests a small, furry burrowing animal to many. But in this lesson, we look at the concept of the mole in chemistry. Learn the i

  • 04:34 Popular Under The Hood: The Chemistry Of Cars - Cynthia Chubbuck

    Under The Hood: The Chemistry Of Cars - Cynthia Chubbuck

    795 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/under-the-hood-the-chemistry-of-cars-cynthia-chubbuck There are over one billion cars in the world right now, getting people from point A to point B. But cars aren't just a mode of transportation; they also teac

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  • 06:35 Popular A glimpse of teenage life in ancient Rome - Ray Laurence

    A glimpse of teenage life in ancient Rome - Ray Laurence

    1,188 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/a-glimpse-of-teenage-life-in-ancient-rome-ray-laurence Welcome to the world of Lucius Popidius Secundus, a 17-year old living in Rome in 73 AD. His life is a typical one of arranged marriages, coming-of-age fest

  • 07:13 How big is infinity? - Dennis Wildfogel

    How big is infinity? - Dennis Wildfogel

    473 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-big-is-infinity Using the fundamentals of set theory, explore the mind-bending concept of the "infinity of infinities" -- and how it led mathematicians to conclude that math itself contains unanswerable ques

  • 03:49 Popular How folding paper can get you to the moon - Adrian Paenza

    How folding paper can get you to the moon - Adrian Paenza

    950 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-folding-paper-can-get-you-to-the-moon Can folding a piece of paper 45 times get you to the moon? By seeing what happens when folding just one piece of paper, we see the unbelievable potential of exponential

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  • 03:48 The History of Keeping Time - Karen Mensing

    The History of Keeping Time - Karen Mensing

    542 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-history-of-keeping-time Where did time-telling come from? What are time zones and why are there so many of them? Get the answers to these questions and more in this journey through the history of time -- fro

  • 04:17 The story behind your glasses - Eva Timothy

    The story behind your glasses - Eva Timothy

    378 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-story-behind-your-glasses-eva-timothy What scientific thinkers and achievements have led to vast improvements in optics over the centuries? Discover the fascinating ways that our understanding of light infor

  • 04:08 Why Is Glass Transparent? - Mark Miodownik

    Why Is Glass Transparent? - Mark Miodownik

    543 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/why-is-glass-transparent-mark-miodownik If you look through your glasses, binoculars or a window, you see the world on the other side. How is it that something so solid can be so invisible? Mark Miodownik melts

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  • 06:57 Electric Vocabulary

    Electric Vocabulary

    616 views / 0 likes - added

    We all know the words around electricity, "charge," "positive," "battery", and more. But where do they come from and what do they really mean? Let the history of these words illuminate the physics of electric phenomena. Lesson by James Sheils, animation b

  • 04:26 Popular The Survival of the Sea Turtle

    The Survival of the Sea Turtle

    1,763 views / 11 likes - added

    Watch the miraculous journey of infant sea turtles as these tiny animals run the gauntlet of predators and harsh conditions. Then, in numbers, see how human behavior has made their tough lives even more challenging. Lesson by Scott Gass, animation by Vero

  • 03:42 The beginning of the universe, for beginners - Tom Whyntie

    The beginning of the universe, for beginners - Tom Whyntie

    479 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-beginni... How did the universe begin -- and how is it expanding? CERN physicist Tom Whyntie shows how cosmologists and particle physicists explore these questions by replicating the heat, energy, and activi

  • 08:50 Popular How To Draw Baby Jesus In A Manger - Nativity

    How To Draw Baby Jesus In A Manger - Nativity

    1,849 views / 3 likes - added

    This lesson on how to draw baby Jesus is probably one of my favorites so far. We first did this lesson 5 years ago, but I thought it would be so much fun to draw him again. It's easy for my kids to get caught up in buying and wishing for presents (it's ea

  • 10:20 Popular How To Draw Animal Jam Monkey

    How To Draw Animal Jam Monkey

    1,225 views / 4 likes - added

    Today's lesson is how to draw an Animal Jam monkey! We love this game! Parents, if you haven't heard of the Animal Jam game, check out the official website https://www.animaljam.com/ For this lesson you'll need a marker, paper, and something to color with

  • 06:12 Popular The wacky history of cell theory - Lauren Royal-Woods

    The wacky history of cell theory - Lauren Royal-Woods

    1,293 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-wacky-history-of-cell-theory Scientific discovery isn't as simple as one good experiment. The weird and wonderful history of cell theory illuminates the twists and turns that came together to build the found

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  • 02:08 Popular Mysteries Of Vernacular: Inaugurate - Jessica Oreck

    Mysteries Of Vernacular: Inaugurate - Jessica Oreck

    968 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/mysteries-of-vernacular-inaugurate-jessica-oreck From avian omens to the beginning of a new policy or the reign of a new politician, Jessica Oreck follows the flight path of the word inaugurate. Lesson and anima

  • 04:34 How To Draw A Funny Slime Monster

    How To Draw A Funny Slime Monster

    211 views / 0 likes - added

    In this drawing lesson, Austin and I are learning how to draw a funny slime monster! This is a great lesson to change and add even more monsters to. We hope you enjoy this lesson a lot. Art Supplies ~ This is a list of the supplies we used, but feel free

  • 03:31 Is Space Trying To Kill Us? - Ron Shaneyfelt

    Is Space Trying To Kill Us? - Ron Shaneyfelt

    642 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/is-space-trying-to-kill-us-ron-shaneyfelt How likely is it that a massive asteroid will do major damage to Earth and its inhabitants? What about the sun -- is it dying out anytime soon? And the supermassive blac

  • 04:22 Popular Why Do Your Knuckles Pop? - Eleanor Nelsen

    Why Do Your Knuckles Pop? - Eleanor Nelsen

    810 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/why-do-your-knuckles-pop-eleanor-nelsen Some people love the feeling of cracking their knuckles, while others cringe at the sound. But what causes that trademark pop? And is it dangerous? Eleanor Nelsen gives th

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  • 04:14 How Do Pain Relievers Work? - George Zaidan

    How Do Pain Relievers Work? - George Zaidan

    631 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-pain-relievers-work Some people take aspirin or ibuprofen to treat everyday aches and pains, but how exactly do the different classes of pain relievers work? Learn about the basic physiology of how humans

  • 07:02 Popular How To Understand Power - Eric Liu

    How To Understand Power - Eric Liu

    962 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-to-understand-power-eric-liu Every day, we move and operate within systems of power that other people have constructed. But we’re often uncomfortable talking about power. Why? Eric Liu describes the six sour

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  • 04:56 Popular How Does Anesthesia Work? - Steven Zheng

    How Does Anesthesia Work? - Steven Zheng

    1,031 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-does-anesthesia-work-steven-zheng When under anesthesia, you can’t move, form memories, or — hopefully — feel pain. And while it might just seem like you are asleep for that time, you actually aren’t. What’s

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  • 01:57 Popular How blue jeans were invented | Moments of Vision 10 - Jessica Oreck

    How blue jeans were invented | Moments of Vision 10 - Jessica Oreck

    886 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-blue-jeans-were-invented-moments-of-vision-10-jessica-oreck Today, 96% of American consumers own at least one pair of jeans. But where did these durable duds come from? And how did they get so popular? Jessi

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  • 06:48 Popular How To Draw The Poop Emoji

    How To Draw The Poop Emoji

    5,831 views / 14 likes - added

    Yes, I know not everyone is going to want to follow along on this one... But, my little Austin really wanted to learn how to draw a poop emoji! Plus, from all of the requests we received, it was clear there were a lot of you really wanting to draw this al

  • 04:22 Popular What Is Fat? - George Zaidan

    What Is Fat? - George Zaidan

    2,108 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/what-is-fat-george-zaidan As the narrative goes, fat is bad. Well, it's actually more nuanced than that. The type of fat you eat is more impactful on your health than the quantity. George Zaidan examines triglyc

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  • 03:39 Popular The Science Of Static Electricity - Anuradha Bhagwat

    The Science Of Static Electricity - Anuradha Bhagwat

    1,229 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/the-science-of-static-electricity-anuradha-bhagwat We’ve all had the experience: you’re walking across a soft carpet, you reach for the doorknob and … ZAP. But what causes this trademark jolt of static electrici

  • 04:41 Popular What is a vector? - David Huynh

    What is a vector? - David Huynh

    1,809 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/what-is-a-vector-david-huynh Physicists, air traffic controllers, and video game creators all have at least one thing in common: vectors. But what exactly are they, and why do they matter? David Huynh explains h

  • 04:30 Popular Could We Actually Live On Mars? - Mari Foroutan

    Could We Actually Live On Mars? - Mari Foroutan

    1,117 views / 4 likes - added

    View full lesson: https://ed.ted.com/lessons/could-we-actually-live-on-mars-mari-foroutan#watch There's a lot of talk these days about when and how we might all move to Mars. But what would it actually be like to live there? Mari Foroutan details the feat

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  • 05:00 Popular Comma Story - Terisa Folaron

    Comma Story - Terisa Folaron

    1,050 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/comma-story-terisa-folaron It isn't easy holding complex sentences together (just ask a conjunction or a subordinate), but the clever little comma can help lighten the load. But how to tell when help is really n

  • 04:49 Popular Why Do Some People Go Bald? - Sarthak Sinha

    Why Do Some People Go Bald? - Sarthak Sinha

    914 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/why-do-some-people-go-bald-sarthak-sinha What do Charles Darwin, Michael Jordan, and Yoda have in common? They, like many other historical and fictive individuals, are bald. Scientists have long pondered, why do

  • 04:30 Popular Vermicomposting: How Worms Can Reduce Our Waste - Matthew Ross

    Vermicomposting: How Worms Can Reduce Our Waste - Matthew Ross

    1,534 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/vermicomposting-how-worms-can-reduce-our-waste-matthew-ross Nearly one third of our food ends up in the trash can. There is hope, however, in the form of worms, which naturally convert organic waste into fertili

  • 03:37 Popular How Tsunamis Work - Alex Gendler

    How Tsunamis Work - Alex Gendler

    3,140 views / 19 likes - added

    View full lesson: http://ed.ted.com/lessons/how-tsunamis-work-alex-gendler The immense swell of a tsunami can grow up to 100 feet, hitting speeds over 500 mph -- a treacherous combination for anyone or anything in its path. Alex Gendler details the causes

  • 04:44 The Invisible Motion Of Still Objects - Ran Tivony

    The Invisible Motion Of Still Objects - Ran Tivony

    612 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-invisible-motion-of-still-objects-ran-tivony Many of the inanimate objects around you probably seem perfectly still. But look deep into the atomic structure of any of them, and you’ll see a world in constant

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  • 03:47 Popular The Case Of The Vanishing Honeybees - Emma Bryce

    The Case Of The Vanishing Honeybees - Emma Bryce

    744 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-case-of-the-vanishing-honeybees-emma-bryce In the past decade, the US honeybee population has been decreasing at an alarming and unprecedented rate. While this is obviously bad news for honeypots everywhere,

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  • 04:20 Popular How Do We Smell? - Rose Eveleth

    How Do We Smell? - Rose Eveleth

    918 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-we-smell-rose-eveleth An adult human can distinguish up to 10,000 odors. You use your nose to figure out what to eat, what to buy and even when it's time to take a shower. But how do the molecules in the

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  • 04:03 Popular How Languages Evolve - Alex Gendler

    How Languages Evolve - Alex Gendler

    1,021 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/how-languages-evolve-alex-gendler Over the course of human history, thousands of languages have developed from what was once a much smaller number. How did we end up with so many? And how do we keep track of the

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  • 05:17 Popular The History Of Tattoos - Addison Anderson

    The History Of Tattoos - Addison Anderson

    727 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-history-of-tattoos-addison-anderson If you have a tattoo, you’re part of a rich cultural history that dates back at least 8,000 years. Where did this practice of body modification come from, and how has its

  • 04:05 Popular What Is The Universe Made Of? - Dennis Wildfogel

    What Is The Universe Made Of? - Dennis Wildfogel

    917 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-is-the-universe-made-of-dennis-wildfogel The atoms around you have existed for billions of years -- and most originated in the flaming, gaseous core of a star. Dennis Wildfogel tells the captivating tale of

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  • 05:01 Popular What causes cavities? - Mel Rosenberg

    What causes cavities? - Mel Rosenberg

    1,333 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-causes-cavities-mel-rosenberg When a team of archeologists recently came across some 15,000-year-old human remains, they made an interesting discovery: the teeth of those ancient humans were riddled with ho

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  • 04:44 Popular Why do we itch? - Emma Bryce

    Why do we itch? - Emma Bryce

    1,009 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/why-do-we-itch-emma-bryce The average person experiences dozens of individual itches each day. We’ve all experienced the annoyance of an inconvenient itch — but have you ever pondered why we itch in the first pl

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  • 01:49 How the stethoscope was invented | Moments of Vision 7 - Jessica Oreck

    How the stethoscope was invented | Moments of Vision 7 - Jessica Oreck

    684 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-the-stethoscope-was-invented-moments-of-vision-7-jessica-oreck The stethoscope is the single most widely used medical instrument in the world. But where did the idea come from? In the seventh installment of

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  • 06:34 Popular How To Draw A Cartoon Grandpa

    How To Draw A Cartoon Grandpa

    1,929 views / 2 likes - added

    Follow along with us and learn how to draw a cartoon grandpa! We know that not all grandpas look the same, but that's what makes this lesson fun. You can challenge your kids to change this lesson and make it look more like the grandpa they love! Change th

  • 05:09 Popular The Science Of Symmetry - Colm Kelleher

    The Science Of Symmetry - Colm Kelleher

    1,212 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-science-of-symmetry-colm-kelleher When you hear the word symmetry, you might think generally of triangles, butterflies, or even ballerinas. But defined scientifically, symmetry is "a transformation that leav

  • 04:53 Popular How The Food You Eat Affects Your Brain - Mia Nacamulli

    How The Food You Eat Affects Your Brain - Mia Nacamulli

    1,057 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-the-food-you-eat-affects-your-brain-mia-nacamulli When it comes to what you bite, chew and swallow, your choices have a direct and long-lasting effect on the most powerful organ in your body: your brain. So

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  • 06:16 What happens when you have a concussion? - Clifford Robbins

    What happens when you have a concussion? - Clifford Robbins

    653 views / 1 likes - added

    View full lesson: https://ed.ted.com/lessons/what-happens-when-you-have-a-concussion-clifford-robbins Each year in the United States, players of sports and recreational activities receive between 2.5 and 4 million concussions. How dangerous are all those

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  • 05:07 Popular The Battle Of The Greek Tragedies - Melanie Sirof

    The Battle Of The Greek Tragedies - Melanie Sirof

    792 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/the-battle-of-the-greek-tragedies-melanie-sirof The world of modern theater owes its roots to the tragedians of Ancient Greece. As far back as the 5th Century BCE, actors and playwrights were entertaining the ma

  • 04:30 Popular If Superpowers Were Real: Immortality - Joy Lin

    If Superpowers Were Real: Immortality - Joy Lin

    895 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/if-superpowers-were-real-immortality-joy-lin What if immortality wasn't just the stuff of epic comic book stories? Is it scientifically possible to be immortal? In this series, Joy Lin tackles six superpowers an

  • 04:33 Popular If Superpowers Were Real: Invisibility - Joy Lin

    If Superpowers Were Real: Invisibility - Joy Lin

    752 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/if-superpowers-were-real-invisibility-joy-lin What if invisibility wasn't just the stuff of epic comic book stories? Is it scientifically possible to be invisible? In this series, Joy Lin tackles six superpowers

  • 04:00 Popular One of the most difficult words to translate... - Krystian Aparta

    One of the most difficult words to translate... - Krystian Aparta

    1,116 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/one-of-the-most-difficult-words-to-translate-krystian-aparta As simple as it seems, it’s often impossible to accurately translate the word you without knowing a lot more about the situation where it’s being said

  • 05:33 Popular What caused the French Revolution? - Tom Mullaney

    What caused the French Revolution? - Tom Mullaney

    868 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/what-caused-the-french-revolution-tom-mullaney What rights do people have, and where do they come from? Who gets to make decisions for others, and on what authority? And how can we organize society to meet peopl

  • 04:01 Popular What We Know (and Don't Know) About Ebola - Alex Gendler

    What We Know (and Don't Know) About Ebola - Alex Gendler

    765 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/what-we-know-and-don-t-know-about-ebola-alex-gendler The highly virulent Ebola virus has seen a few major outbreaks since it first appeared in 1976 -- with the worst epidemic occurring in 2014. How does the viru

  • 04:38 Popular The Power Of The Placebo Effect - Emma Bryce

    The Power Of The Placebo Effect - Emma Bryce

    902 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-power-of-the-placebo-effect-emma-bryce The placebo effect is an unexplained phenomenon wherein drugs, treatments, and therapies that aren’t supposed to have an effect — and are often fake — miraculously make

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  • 05:11 Popular If Superpowers Were Real: Flight - Joy Lin

    If Superpowers Were Real: Flight - Joy Lin

    823 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/if-superpowers-were-real-flight-joy-lin What if human flight wasn't just the stuff of epic comic book stories? Is it scientifically possible to fly? In this series, Joy Lin tackles six superpowers and reveals ju

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  • 06:09 Popular Beatboxing 101 - BEAT NYC

    Beatboxing 101 - BEAT NYC

    796 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/beatboxing-101-beat-nyc There's no need for instruments to make music; you can use the greatest instrument of all, your own body. Members of BEAT NYC teach the basics of beatboxing (think trumpets, bass drums, a

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  • 01:51 Popular How the popsicle was invented | Moments of Vision 11 - Jessica Oreck

    How the popsicle was invented | Moments of Vision 11 - Jessica Oreck

    1,284 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/how-the-popsicle-was-invented-moments-of-vision-11-jessica-oreck Each year, approximately 2 billion popsicles are sold worldwide. But where did the idea for this tasty treat come from? In the eleventh installmen

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  • 05:25 Popular An Exercise In Time Perception - Matt Danzico

    An Exercise In Time Perception - Matt Danzico

    760 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/an-exercise-in-time-perception-matt-danzico Why is that some experiences feel like they last forever, while others fly by? We tend to miscalculate the time it takes to engage in novel activities due to the influ

  • 04:50 Popular Why Do We Hiccup? - John Cameron

    Why Do We Hiccup? - John Cameron

    1,131 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/why-do-we-hiccup-john-cameron The longest recorded case of hiccups lasted for 68 years … and was caused by a falling hog. While that level of severity is extremely uncommon, most of us are no stranger to an occa

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  • 04:30 Popular The Science Of Snowflakes - Maruša Bradač

    The Science Of Snowflakes - Maruša Bradač

    709 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-science-of-snowflakes-marusa-bradac One could say that snowflakes are simply frozen water — but if you compare a snowflake to an ice cube, you’ll notice a big difference. Why are all snowflakes six-sided? Wh

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  • 04:39 Popular Should You Trust Your First Impression? - Peter Mende-Siedlecki

    Should You Trust Your First Impression? - Peter Mende-Siedlecki

    1,124 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/should-you-trust-your-first-impression-peter-mende-siedlecki You can't help it; sometimes, you just get a bad feeling about someone that's hard to shake. So, what's happening in your brain when you make that cri

  • 04:19 Popular How Statistics Can Be Misleading - Mark Liddell

    How Statistics Can Be Misleading - Mark Liddell

    1,209 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-statistics-can-be-misleading-mark-liddell Statistics are persuasive. So much so that people, organizations, and whole countries base some of their most important decisions on organized data. But any set of s

  • 04:34 Popular Do Fad Diets Work? - Mia Nacamulli

    Do Fad Diets Work? - Mia Nacamulli

    1,408 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/do-fad-diets-work-mia-nacamulli Conventional wisdom about diets, including government health recommendations, seems to change all the time. And yet ads routinely come out claiming to have THE answer about what w

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  • 04:40 Popular Which Sunscreen Should You Choose? - Mary Poffenroth

    Which Sunscreen Should You Choose? - Mary Poffenroth

    832 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/which-sunscreen-should-you-choose-mary-poffenroth Sunscreen comes in many forms, each with its own impacts on your body and the environment. With so many options, how do you choose which sunscreen is best for yo

  • 01:50 Popular How Braille was invented | Moments of Vision 9 - Jessica Oreck

    How Braille was invented | Moments of Vision 9 - Jessica Oreck

    1,505 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-braille-was-invented-moments-of-vision-9-jessica-oreck Today, Braille is the universally accepted system of writing for the blind, translated into almost every language in almost every country across the glo

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  • 05:02 Popular Why Do Some People Have Seasonal Allergies? - Eleanor Nelsen

    Why Do Some People Have Seasonal Allergies? - Eleanor Nelsen

    1,204 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/why-do-some-people-have-seasonal-allergies-eleanor-nelsen Ah, spring. Grass growing, flowers blooming, trees budding. For those with allergies, though, this explosion of new life probably inspires more dread tha

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  • 04:21 Popular Why Wildfires Are Necessary - Jim Schulz

    Why Wildfires Are Necessary - Jim Schulz

    2,057 views / 6 likes - added

    View full lesson: http://ed.ted.com/lessons/why-wildfires-are-necessary-jim-schulz Our early ancestors relied on lightning to cause forest fires, from which they could collect coals and burning sticks to help them cook food and clear land. Yet, it wasn’t

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  • 03:36 Popular How To Use A Semicolon - Emma Bryce

    How To Use A Semicolon - Emma Bryce

    866 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-to-use-a-semicolon-emma-bryce It may seem like the semicolon is struggling with an identity crisis. It looks like a comma crossed with a period. Maybe that’s why we toss these punctuation marks around like g

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  • 10:27 Popular How To Draw A Snowglobe

    How To Draw A Snowglobe

    953 views / 1 likes - added

    Follow along with us and learn how to draw a snowglobe. This is a perfect lesson to change. During the first steps to this lesson, we show you how to draw a snowglobe. Then when we start drawing the snowmen, you can pause the video and draw something comp

  • 03:19 Popular The Cancer Gene We All Have - Michael Windelspecht

    The Cancer Gene We All Have - Michael Windelspecht

    721 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/the-cancer-gene-we-all-have-michael-windelspecht Within every cell in our body, two copies of a tumor suppressor gene called BRCA1 are tasked with regulating the speed at which cells divide. Michael Windelspecht

  • 03:50 Popular Can You Solve The Locker Riddle? - Lisa Winer

    Can You Solve The Locker Riddle? - Lisa Winer

    2,012 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/can-you-solve-the-locker-riddle-lisa-winer Your rich, eccentric uncle just passed away, and you and your 99 nasty relatives have been invited to the reading of his will. He wanted to leave all of his money to yo

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  • 04:52 Popular What Would Happen If You Didn’t Drink Water? - Mia Nacamulli

    What Would Happen If You Didn’t Drink Water? - Mia Nacamulli

    1,430 views / 4 likes - added

    View full lesson: http://ed.ted.com/lessons/what-would-happen-if-you-didn-t-drink-water-mia-nacamulli Water is essentially everywhere in our world, and the average human is composed of between 55 and 60% water. So what role does water play in our bodies,

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  • 04:01 Popular The simple story of photosynthesis and food - Amanda Ooten

    The simple story of photosynthesis and food - Amanda Ooten

    895 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-simple-but-fascinating-story-of-photosynthesis-and-food-amanda-ooten Photosynthesis is an essential part of the exchange between humans and plants. Amanda Ooten walks us through the process of photosynthesis

  • 03:42 Popular How False News Can Spread - Noah Tavlin

    How False News Can Spread - Noah Tavlin

    1,079 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-false-news-can-spread-noah-tavlin In previous decades, most news with global reach came from several major newspapers and networks with the resources to gather information directly. The speed with which info

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  • 04:20 Popular Why should you listen to Vivaldi's "Four Seasons"? - Betsy Schwarm

    Why should you listen to Vivaldi's "Four Seasons"? - Betsy Schwarm

    780 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/why-should-you-listen-to-vivaldi-s-four-seasons-betsy-schwarm Light, bright, and cheerful, "The Four Seasons" by Antonio Vivaldi is some of the most familiar of all early 18th century music, featured in numerous

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  • 04:15 Popular A clever way to estimate enormous numbers - Michael Mitchell

    A clever way to estimate enormous numbers - Michael Mitchell

    1,153 views / 0 likes - added

    View the full lesson here: http://ed.ted.com/lessons/michael-mitchell-a-clever-way-to-estimate-enormous-numbers Have you ever tried to guess how many pieces of candy there are in a jar? Or tackled a mindbender like: "How many piano tuners are there in Chi

  • 04:17 Popular 3 Tips To Boost Your Confidence

    3 Tips To Boost Your Confidence

    1,003 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/3-tips-to-boost-your-confidence-ted-ed Lesson made in partnership with the Always #LikeAGirl campaign, animation by Kozmonot Animation Studio. When faced with a big challenge where potential failure seems to lur

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  • 04:54 Popular Where Did English Come From? - Claire Bowern

    Where Did English Come From? - Claire Bowern

    1,130 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/where-did-english-come-from-claire-bowern When we talk about ‘English’, we often think of it as a single language. But what do the dialects spoken in dozens of countries around the world have in common with each

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  • 04:51 Popular How Smart Are Dolphins? - Lori Marino

    How Smart Are Dolphins? - Lori Marino

    1,961 views / 8 likes - added

    View full lesson: http://ed.ted.com/lessons/how-smart-are-dolphins-lori-marino Dolphins are one of the smartest animal species on Earth. In fact, their encephalization quotient (their brain size compared to the average for their body size) is second only

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  • 05:38 Will we ever be able to teleport? - Sajan Saini

    Will we ever be able to teleport? - Sajan Saini

    652 views / 0 likes - added

    View full lesson: https://ed.ted.com/lessons/will-we-ever-be-able-to-teleport-sajan-saini Is teleportation possible? Could a baseball transform into something like a radio wave, travel through buildings, bounce around corners, and change back into a baseb

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  • 04:10 Popular How To Unboil An Egg - Eleanor Nelsen

    How To Unboil An Egg - Eleanor Nelsen

    770 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-to-unboil-an-egg-eleanor-nelsen It’s so obvious that it’s practically proverbial: you can’t unboil an egg. But actually, it turns out that you can -- sort of. Eleanor Nelsen explains the process by which mec

  • 03:15 The Science Of Macaroni Salad: What's In A Molecule? - Josh Kurz

    The Science Of Macaroni Salad: What's In A Molecule? - Josh Kurz

    580 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-science-of-macaroni-salad-what-s-in-a-molecule-josh-kurz What do macaroni salad and gasoline have in common? They are made of exactly the same stuff -- specifically, the same atoms, just rearranged. So, whil

  • 04:44 Popular A Guide To The Energy Of The Earth - Joshua M. Sneideman

    A Guide To The Energy Of The Earth - Joshua M. Sneideman

    1,627 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/a-guide-to-the-energy-of-the-earth-joshua-m-sneideman Energy is neither created nor destroyed — and yet the global demand for it continues to increase. But where does energy come from, and where does it go? Josh

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  • 03:48 Popular Disappearing Frogs - Kerry M. Kriger

    Disappearing Frogs - Kerry M. Kriger

    876 views / 5 likes - added

    View full lesson: http://ed.ted.com/lessons/disappearing-frogs-kerry-m-kriger Frogs (and amphibians in general) are in danger -- worldwide, nearly one-third of the world's amphibian species are on the verge of extinction. And yet, frogs contribute to our

  • 04:01 Popular Can you find the next number in this sequence? - Alex Gendler

    Can you find the next number in this sequence? - Alex Gendler

    2,293 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/can-you-find-the-next-number-in-this-sequence-alex-gendler 1, 11, 21, 1211, 111221. These are the first five elements of a number sequence. Can you figure out what comes next? Alex Gendler reveals the answer and

  • 04:07 Popular What Really Happens To The Plastic You Throw Away - Emma Bryce

    What Really Happens To The Plastic You Throw Away - Emma Bryce

    1,367 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-really-happens-to-the-plastic-you-throw-away-emma-bryce We’ve all been told that we should recycle plastic bottles and containers. But what actually happens to the plastic if we just throw it away? Emma Bry

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  • 03:50 Popular Can You Solve The Bridge Riddle? - Alex Gendler

    Can You Solve The Bridge Riddle? - Alex Gendler

    2,046 views / 3 likes - added

    View full lesson: https://ed.ted.com/lessons/can-you-solve-the-bridge-riddle-alex-gendler Taking that internship in a remote mountain lab might not have been the best idea. Pulling that lever with the skull symbol just to see what it did probably wasn’t s

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  • 04:43 Popular How X-rays See Through Your Skin - Ge Wang

    How X-rays See Through Your Skin - Ge Wang

    1,087 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/how-x-rays-see-through-your-skin-ge-wang Originally discovered by accident, X-rays are now used about 100 million times a year in clinics around the world. How do these magic eyes work? Ge Wang details the histo

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  • 05:38 Popular Why Do We Dream? - Amy Adkins

    Why Do We Dream? - Amy Adkins

    1,588 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/why-do-we-dream-amy-adkins In the 3rd millennium BCE, Mesopotamian kings recorded and interpreted their dreams on wax tablets. In the years since, we haven't paused in our quest to understand why we dream. And w

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  • 05:10 Popular Why Do Our Bodies Age? - Monica Menesini

    Why Do Our Bodies Age? - Monica Menesini

    710 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/why-do-our-bodies-age-monica-menesini Human bodies aren’t built for extreme aging: our capacity is set at about 90 years. But what does aging really mean, and how does it counteract the body’s efforts to stay al

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  • 05:22 Does your vote count? The Electoral College explained - Christina Greer

    Does your vote count? The Electoral College explained - Christina Greer

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    View full lesson: http://ed.ted.com/lessons/does-your-vote-count-the-electoral-college-explained-christina-greer You vote, but then what? Discover how your individual vote contributes to the popular vote and your state's electoral vote in different ways--

  • 04:51 Popular What's The Definition Of Comedy? Banana. - Addison Anderson

    What's The Definition Of Comedy? Banana. - Addison Anderson

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    View full lesson: http://ed.ted.com/lessons/what-s-the-definition-of-comedy-banana-addison-anderson What makes us giggle and guffaw? The inability to define comedy is its very appeal; it is defined by its defiance of definition. Addison Anderson riffs on

  • 04:46 Popular How To Make A Mummy - Len Bloch

    How To Make A Mummy - Len Bloch

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    View full lesson: http://ed.ted.com/lessons/how-to-make-a-mummy-len-bloch As anyone who’s seen a mummy knows, ancient Egyptian priests went to a lot of trouble to evade decomposition. But how successful were they? Len Bloch details the mummification proce

  • 04:07 Why do competitors open their stores next to one another? - Jac de Haan

    Why do competitors open their stores next to one another? - Jac de Haan

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    View full lesson on ed.ted.com - http://ed.ted.com/lessons/why-do-competitors-open-their-stores-next-to-one-another-jac-de-haan Why are all the gas stations, cafes and restaurants in one crowded spot? As two competitive cousins vie for ice-cream-selling d

  • 04:27 Popular The Benefits Of Good Posture - Murat Dalkiniç

    The Benefits Of Good Posture - Murat Dalkiniç

    1,095 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/the-benefits-of-good-posture-murat-dalkinic Has anyone ever told you, “Stand up straight!” or scolded you for slouching at a family dinner? Comments like that might be annoying—but they’re not wrong. Your postur

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  • 04:08 Popular Can You Solve The Passcode Riddle? - Ganesh Pai

    Can You Solve The Passcode Riddle? - Ganesh Pai

    1,408 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/can-you-solve-the-passcode-riddle-ganesh-pai In a dystopian world, your resistance group is humanity’s last hope. Unfortunately, you’ve all been captured by the tyrannical rulers and brought to the ancient colis

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  • 03:59 Popular Is it bad to hold your pee? - Heba Shaheed

    Is it bad to hold your pee? - Heba Shaheed

    865 views / 4 likes - added

    View full lesson: http://ed.ted.com/lessons/is-it-bad-to-hold-your-pee-heba-shaheed Humans should urinate at least four to six times a day, but occasionally, the pressures of modern life force us to clench and hold it in. How bad is this habit, and how lo

  • 04:19 Popular Can you solve the river crossing riddle? - Lisa Winer

    Can you solve the river crossing riddle? - Lisa Winer

    1,807 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/can-you-solve-the-river-crossing-riddle-lisa-winer As a wildfire rages through the grasslands, three lions and three wildebeest flee for their lives. To escape the inferno, they must cross over to the left bank

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  • 05:43 What is McCarthyism? And how did it happen? - Ellen Schrecker

    What is McCarthyism? And how did it happen? - Ellen Schrecker

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    View full lesson: http://ed.ted.com/lessons/what-is-mccarthyism-and-how-did-it-happen-ellen-schrecker In the 1950s, as part of a campaign to expose suspected Communists, thousands of individuals were aggressively investigated and questioned before governm

  • 04:24 Popular Where Do Genes Come From? - Carl Zimmer

    Where Do Genes Come From? - Carl Zimmer

    1,811 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/where-do-genes-come-from-carl-zimmer When life emerged on Earth about 4 billion years ago, the earliest microbes had a set of basic genes that succeeded in keeping them alive. In the age of humans and other larg

  • 04:53 Popular Are preservatives bad for you?

    Are preservatives bad for you?

    2,039 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/are-preservatives-bad-for-you-eleanor-nelsen Food doesn’t last. In days, sometimes hours, bread goes moldy, apple slices turn brown, and bacteria multiply in mayonnaise. But you can find all of these foods out o

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  • 03:52 Popular How polarity makes water behave strangely - Christina Kleinberg

    How polarity makes water behave strangely - Christina Kleinberg

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    View full lesson: http://ed.ted.com/lessons/how-polarity-makes-water-behave-strangely-christina-kleinberg Water is both essential and unique. Many of its particular qualities stem from the fact that it consists of two hydrogen atoms and one oxygen, theref

  • 04:57 How To Turn Protest Into Powerful Change - Eric Liu

    How To Turn Protest Into Powerful Change - Eric Liu

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    View full lesson: http://ed.ted.com/lessons/how-to-turn-protest-into-powerful-change-eric-liu We live in an age of protest. On campuses, in public squares, on streets and social media, protestors around the world are challenging the status quo. But while

  • 04:10 Popular How to spot a misleading graph - Lea Gaslowitz

    How to spot a misleading graph - Lea Gaslowitz

    837 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-to-spot-a-misleading-graph-lea-gaslowitz When they’re used well, graphs can help us intuitively grasp complex data. But as visual software has enabled more usage of graphs throughout all media, it has also m

  • 05:23 Popular Is Telekinesis Real? - Emma Bryce

    Is Telekinesis Real? - Emma Bryce

    2,483 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/is-telekinesis-real-emma-bryce Telekinesis, the ability to manipulate matter with the mind alone, is a trait exhibited by some of the most iconic fictional characters, including Neo, Yoda, and, of course, Carrie

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  • 04:10 The Treadmill's Dark And Twisted Past - Conor Heffernan

    The Treadmill's Dark And Twisted Past - Conor Heffernan

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    View full lesson: http://ed.ted.com/lessons/the-treadmill-s-dark-and-twisted-past-conor-heffernan The constant thud underneath your feet. The constrained space. The monotony of going nowhere fast. Running on a treadmill can certainly feel like torture, bu

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  • 04:35 Popular Where Does Gold Come From? - David Lunney

    Where Does Gold Come From? - David Lunney

    1,306 views / 4 likes - added

    View full lesson: http://ed.ted.com/lessons/where-does-gold-come-from-david-lunney Did you know that gold is extraterrestrial? Instead of arising from our planet’s rocky crust, it was actually cooked up in space and is present on Earth because of cataclys

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  • 04:30 How to use rhetoric to get what you want - Camille A. Langston

    How to use rhetoric to get what you want - Camille A. Langston

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    View full lesson: http://ed.ted.com/lessons/how-to-use-rhetoric-to-get-what-you-want-camille-a-langston How do you get what you want, using just your words? Aristotle set out to answer exactly that question over two thousand years ago with a treatise on r

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  • 05:11 Popular Where do superstitions come from? - Stuart Vyse

    Where do superstitions come from? - Stuart Vyse

    866 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/where-do-superstitions-come-from-stuart-vyse Are you afraid of black cats? Would you open an umbrella indoors? How do you feel about the number 13? Whether or not you believe in them, you’re probably familiar wi

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  • 04:20 Popular How Memories Form And How We Lose Them - Catharine Young

    How Memories Form And How We Lose Them - Catharine Young

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    View full lesson: http://ed.ted.com/lessons/how-memories-form-and-how-we-lose-them-catharine-young Think back to a really vivid memory. Got it? Now try to remember what you had for lunch three weeks ago. That second memory probably isn’t as strong—but why

  • 04:22 Popular Pruney Fingers: A Gripping Story - Mark Changizi

    Pruney Fingers: A Gripping Story - Mark Changizi

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    View full lesson: http://ed.ted.com/lessons/pruney-fingers-a-gripping-story-mark-changizi Why do fingers become pruney when they get wet? Likely, for the same reasons that tires have treads. Mark Changizi examines the evolutionary reasons for pruney finge

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  • 04:07 Popular Could A Blind Eye Regenerate? - David Davila

    Could A Blind Eye Regenerate? - David Davila

    1,315 views / 1 likes - added

    View full lesson here: http://ed.ted.com/lessons/could-a-blind-eye-regenerate-david-davila We tend to think of blindness as something you're born with, but with certain genetic diseases, it can actually develop when you’re a kid, or even when you’re an ad

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  • 05:38 Ideasthesia: How Do Ideas Feel? - Danko Nikolić

    Ideasthesia: How Do Ideas Feel? - Danko Nikolić

    651 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/ideasthesia-how-do-ideas-feel-danko-nikolic The traditional model of our mental function is that first our senses provide data to our brain, which then translates those senses into the appropriate mental phenome

  • 05:20 Popular The Great Brain Debate - Ted Altschuler

    The Great Brain Debate - Ted Altschuler

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    View full lesson: http://ed.ted.com/lessons/the-great-brain-debate-ted-altschuler Throughout history, scientists have proposed conflicting ideas on how the brain carries out functions like perception, memory, and movement. Is each of these tasks carried o

  • 04:18 Popular The Evolution Of The Book - Julie Dreyfuss

    The Evolution Of The Book - Julie Dreyfuss

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    View full lesson: http://ed.ted.com/lessons/the-evolution-of-the-book-julie-dreyfuss What makes a book a book? Is it just anything that stores and communicates information? Or does it have to do with paper, binding, font, ink, its weight in your hands, th

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  • 05:56 Popular How to recognize a dystopia - Alex Gendler

    How to recognize a dystopia - Alex Gendler

    782 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-to-recognize-a-dystopia-alex-gendler The genre of dystopia – the ‘not good place’– has captured the imaginations of artists and audiences alike for centuries. But why do we bother with all this pessimism? Al

  • 04:09 Why do we feel nostalgia? - Clay Routledge

    Why do we feel nostalgia? - Clay Routledge

    508 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/why-do-we-feel-nostalgia-clay-routledge Nostalgia was once considered an illness confined to specific groups of people. Today, people all over the world report experiencing and enjoying nostalgia. But how does n

  • 04:30 Popular How Do Geckos Defy Gravity? - Eleanor Nelsen

    How Do Geckos Defy Gravity? - Eleanor Nelsen

    795 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-geckos-defy-gravity-eleanor-nelsen Geckos aren’t covered in adhesives or hooks or suction cups, and yet they can effortlessly scale vertical walls and hang from ceilings. What’s going on? Eleanor Nelsen e

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  • 05:23 Popular Why Elephants Never Forget - Alex Gendler

    Why Elephants Never Forget - Alex Gendler

    1,108 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/why-elephants-never-forget-alex-gendler It’s a common saying that elephants never forget. But the more we learn about elephants, the more it appears that their impressive memory is only one aspect of an incredib

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  • 04:57 Birth Of A Nickname - John McWhorter

    Birth Of A Nickname - John McWhorter

    606 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/birth-of-a-nickname-john-mcwhorter Where do nicknames come from? Why are Ellens called Nellie and Edwards Ned? It's all a big misunderstanding from the early days of the English language, a misunderstanding that

  • 05:11 Popular What Is Obesity? - Mia Nacamulli

    What Is Obesity? - Mia Nacamulli

    863 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/what-is-obesity-mia-nacamulli Obesity is an escalating global epidemic. It substantially raises the probability of diseases like diabetes, heart disease, stroke, high blood pressure, and cancer. But what is the

  • 05:09 Popular How does your body know what time it is? - Marco A. Sotomayor

    How does your body know what time it is? - Marco A. Sotomayor

    813 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-does-your-body-know-what-time-it-is-marco-a-sotomayor Being able to sense time helps us do everything from waking and sleeping to knowing precisely when to catch a ball that’s hurtling towards us. And we owe

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  • 05:15 Popular Why are sloths so slow? - Kenny Coogan

    Why are sloths so slow? - Kenny Coogan

    893 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/why-are-sloths-so-slow-kenny-coogan Sloths spend most of their time eating, resting, or sleeping; in fact, they descend from their treetops canopies just once a week, for a bathroom break. How are these creature

  • 04:12 Popular How Do Tornadoes Form? - James Spann

    How Do Tornadoes Form? - James Spann

    2,888 views / 27 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-tornadoes-form-james-spann Tornadoes are the most violent storms on Earth, with wind velocities that can exceed 200 miles per hour. How do these terrifying cyclones form? Meteorologist James Spann sheds l

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  • 04:07 What Light Can Teach Us About The Universe - Pete Edwards

    What Light Can Teach Us About The Universe - Pete Edwards

    653 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/what-light-can-teach-us-about-the-universe-pete-edwards Humanity has long been looking at the universe and asking the big questions: How did it begin? How will it end? Cosmologists are searching hard for the ans

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  • 04:23 Popular Overcoming Obstacles - Steven Claunch

    Overcoming Obstacles - Steven Claunch

    1,009 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/there-s-no-dishonor-in-having-a-disability-steven-claunch When faced with a bump in the road, sometimes we forget we have a choice: overcome the obstacle or let it overcome you. Steven Claunch, who was born with

  • 04:58 Popular Why Do Cats Act So Weird? - Tony Buffington

    Why Do Cats Act So Weird? - Tony Buffington

    1,682 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/why-do-cats-act-so-weird-tony-buffington They’re cute, they’re lovable, and judging by the 26 billion views on over 2 million YouTube videos of them, one thing is certain: cats are very entertaining. But their s

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  • 04:56 Popular How Interpreters Juggle Two Languages At Once - Ewandro Magalhaes

    How Interpreters Juggle Two Languages At Once - Ewandro Magalhaes

    1,398 views / 0 likes - added

    View full Lesson: https://ed.ted.com/lessons/how-interpreters-juggle-two-languages-at-once-ewandro-magalhaes Language is complex, and when abstract or nuanced concepts get lost in translation, the consequences may be catastrophic. Given the complexities o

  • 08:48 What's invisible? More than you think - John Lloyd

    What's invisible? More than you think - John Lloyd

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    View full lesson on ed.ted.com http://ed.ted.com/lessons/what-s-invisible-more-than-you-think-john-lloyd Gravity. The stars in day. Thoughts. The human genome. Time. Atoms. So much of what really matters in the world is impossible to see. A stunning anima

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  • 01:40 Popular How the bendy straw was invented | Moments of Vision 12 - Jessica Oreck

    How the bendy straw was invented | Moments of Vision 12 - Jessica Oreck

    877 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-the-bendy-straw-was-invented-moments-of-vision-12-jessica-oreck Today, Americans use an estimated 500 million drinking straws every day. But where did the idea for this beloved utensil come from? In the twel

  • 04:42 Popular How To Write Fiction That Comes Alive - Nalo Hopkinson

    How To Write Fiction That Comes Alive - Nalo Hopkinson

    901 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-to-write-fiction-that-comes-alive-nalo-hopkinson The point of fiction is to cast a spell, a momentary illusion that you are living in the world of the story. But as a writer, how do you suck your readers int

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  • 04:39 Popular Does Grammar Matter? - Andreea S. Calude

    Does Grammar Matter? - Andreea S. Calude

    916 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/does-grammar-matter-andreea-s-calude It can be hard sometimes, when speaking, to remember all of the grammatical rules that guide us when we’re writing. When is it right to say “the dog and me” and when should i

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  • 04:28 Popular History vs. Cleopatra - Alex Gendler

    History vs. Cleopatra - Alex Gendler

    1,406 views / 7 likes - added

    View full lesson: ed.ted.com/lessons/history-vs-cleopatra-alex-gendler She was the most notorious woman in ancient history, a queen who enraptured not one but two of Rome’s greatest generals. But was she just a skilled seductress – or a great ruler in her

  • 05:30 The philosophy of Stoicism - Massimo Pigliucci

    The philosophy of Stoicism - Massimo Pigliucci

    542 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-philosophy-of-stoicism-massimo-pigliucci What is the best life we can live? How can we cope with whatever the universe throws at us and keep thriving nonetheless? The ancient Greco-Roman philosophy of Stoici

  • 03:38 Popular Could Comets Be The Source Of Life On Earth? - Justin Dowd

    Could Comets Be The Source Of Life On Earth? - Justin Dowd

    1,591 views / 4 likes - added

    View full lesson: http://ed.ted.com/lessons/could-comets-be-the-source-of-life-on-earth-justin-dowd While comets were historically thought to be ill omens of war and famine, recent science has revealed that these celestial wonders actually contain amino a

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  • 04:25 How Do We Separate The Seemingly Inseparable? - Iddo Magen

    How Do We Separate The Seemingly Inseparable? - Iddo Magen

    667 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-we-separate-the-inseparable-iddo-magen Your cell phone is mainly made of plastics and metals. It’s easy to appreciate the process by which those elements add up to something so useful. But there’s another

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  • 04:37 Sunlight Is Way Older Than You Think - Sten Odenwald

    Sunlight Is Way Older Than You Think - Sten Odenwald

    468 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/sunlight-is-way-older-than-you-think-sten-odenwald It takes light a zippy 8 minutes to reach Earth from the surface of the Sun. But how long does it take that same light to travel from the Sun’s core to its surf

  • 04:19 Popular Why Is Biodiversity So Important? - Kim Preshoff

    Why Is Biodiversity So Important? - Kim Preshoff

    1,454 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/why-is-biodiversity-so-important-kim-preshoff Our planet’s diverse, thriving ecosystems may seem like permanent fixtures, but they’re actually vulnerable to collapse. Jungles can become deserts, and reefs can be

  • 03:19 Popular How Heavy Is Air? - Dan Quinn

    How Heavy Is Air? - Dan Quinn

    1,158 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-heavy-is-air-dan-quinn Too often we think of air as empty space — but compared to a vacuum, air is actually pretty heavy. So, just how heavy is it? And if it's so heavy, why doesn't it crush us? Dan Quinn de

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  • 03:21 Popular What Does The Pancreas Do? - Emma Bryce

    What Does The Pancreas Do? - Emma Bryce

    1,683 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-does-the-pancreas-do-emma-bryce Beneath your ribs, you’ll find, among other things, the pancreas -- an organ that works a lot like a personal health coach. Emma Bryce explains how this organ controls your s

  • 03:46 Popular What Triggers A Chemical Reaction? - Kareem Jarrah

    What Triggers A Chemical Reaction? - Kareem Jarrah

    2,393 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/what-triggers-a-chemical-reaction-kareem-jarrah Chemicals are in everything we see, and the reactions between them can look like anything from rust on a spoon to an explosion on your stovetop. But why do these r

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  • 02:58 How To Take A Great Picture - Carolina Molinari

    How To Take A Great Picture - Carolina Molinari

    642 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-to-take-a-great-picture-carolina-molinari Have you ever looked at your camera and wondered what all of those buttons actually do? For manual photography, the aperture, shutter speed and ISO sensitivity can a

  • 04:36 Popular Should We Be Looking For Life Elsewhere In The Universe? - Aomawa Shields

    Should We Be Looking For Life Elsewhere In The Universe? - Aomawa Shields

    926 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/should-we-be-looking-for-life-elsewhere-in-the-universe-aomawa-shields As the number of “potentially habitable” planets that astronomers find continues to rise, we seem ever closer to answering the question, “Ar

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  • 05:10 Popular The power of creative constraints - Brandon Rodriguez

    The power of creative constraints - Brandon Rodriguez

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    View full lesson: http://ed.ted.com/lessons/the-power-of-creative-constraints-brandon-rodriguez Imagine you were asked to invent something new. It could be whatever you want, made from anything you choose, in any shape or size. That kind of creative freed

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  • 05:49 The Real Origin of the Franchise - Sir Harold Evans

    The Real Origin of the Franchise - Sir Harold Evans

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    View full lesson on TED-Ed BETA: http://ed.ted.com/lessons/the-real-origin-of-the-franchise One of the most successful business models is the franchise, but it didn't originate with McDonald's. Sir Harold Evans, the author of They Made America, describes

  • 04:04 Popular Sugar: Hiding In Plain Sight - Robert Lustig

    Sugar: Hiding In Plain Sight - Robert Lustig

    773 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/sugar-hiding-in-plain-sight-robert-lustig While sugar is easy to spot in candy, soft drinks and ice cream, it also hides out in foods you might not expect -- including peanut butter, pasta sauce and even bologna

  • 04:08 Popular How Mucus Keeps Us Healthy - Katharina Ribbeck

    How Mucus Keeps Us Healthy - Katharina Ribbeck

    743 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/how-mucus-keeps-us-healthy-katharina-ribbeck Your body produces more than a liter of mucus every day, and when you’re sick, it can be hard to miss. But what exactly is mucus? And what does it do, besides making

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  • 03:14 Popular When To Use Apostrophes - Laura McClure

    When To Use Apostrophes - Laura McClure

    730 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/when-to-use-apostrophes-laura-mcclure It’s possessive. It’s often followed by S’s. And it’s sometimes tricky when it comes to its usage. It’s the apostrophe. Laura McClure gives a refresher on when to use apostr

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  • 03:52 Popular What Gives A Dollar Bill Its Value? - Doug Levinson

    What Gives A Dollar Bill Its Value? - Doug Levinson

    1,124 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/what-gives-a-dollar-bill-its-value-doug-levinson The value of money is determined by how much (or how little) of it is in circulation. But who makes that decision, and how does their choice affect the economy at

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  • 03:20 What cameras see that our eyes don't - Bill Shribman

    What cameras see that our eyes don't - Bill Shribman

    641 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-cameras-see-that-our-eyes-don-t-bill-shribman Our eyes are practically magical, but they cannot see everything. For instance, the naked eye cannot see the moment where all four of a horse's legs are in the

  • 04:32 Popular The Chemistry Of Cold Packs - John Pollard

    The Chemistry Of Cold Packs - John Pollard

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    View full lesson: http://ed.ted.com/lessons/how-do-cold-packs-get-cold-so-fast-john-pollard If you stick water in the freezer, it will take a few hours to freeze into ice. How is it, then, that cold packs go from room temperature to near freezing in mere

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  • 04:54 Popular The Akune Brothers: Siblings On Opposite Sides Of War - Wendell Oshiro

    The Akune Brothers: Siblings On Opposite Sides Of War - Wendell Oshiro

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    View full lesson: http://ed.ted.com/lessons/the-akune-brothers-siblings-on-opposite-sides-of-war-wendell-oshiro There are many stories that can be told about World War II, from the tragic to the inspiring. But perhaps one of the most heart-rending experie

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  • 03:50 Defining Cyberwarfare...in Hopes Of Preventing It - Daniel Garrie

    Defining Cyberwarfare...in Hopes Of Preventing It - Daniel Garrie

    687 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/defining-cyberwarfare-in-hopes-of-preventing-it-daniel-garrie Can you imagine a future where wars are fought not with bombs and bullets but computer viruses and pacemaker shutdowns? Cyberware is unique in that i

  • 04:45 Popular The History Of Marriage - Alex Gendler

    The History Of Marriage - Alex Gendler

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    View full lesson: http://ed.ted.com/lessons/the-history-of-marriage-alex-gendler A white, puffy dress. Eternal love. A joint tax return. Marriage means something different to everyone and has changed over time and across cultures. Alex Gendler traces the


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