Search Results: "Handbook"

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02:49 Popular
Why Do Wind Turbines Have Three Blades?

767 views / 3 likes - added 7 years ago

There is a lot more to this subject than I have covered in this video, this is just the basics. I have used the Wind Turbine Handbook as my primary reference material, it covers pretty much everything you need to know about wind turbines. If you are study
22:07 Popular
The Odd Number Rule

946 views / 0 likes - added 3 years ago

Subscribe to our Curiosity Box! https://www.curiositybox.comLearn more about our new Inquisitive Fellowship: https://www.curiositybox.com/pages/inquisitivefellowshipfollow me:https://twitter.com/tweetsaucehttps://www.instagram.com/electricpantsBuddy the d
06:02 Popular
What Happens When You Mix Liquid Nitrogen and Boiling Water? Making Instant Clouds in Slow Motion!

753 views / 0 likes - added 6 years ago

We experiment making instant clouds by mixing liquid nitrogen and hot water and film it in super slow motion to see what it looks like. Kuma Shirts→ https://teespring.com/stores/kumashop // Subscribe→ http://bit.ly/kumaf1lms // More vids → http://bit.ly/k
Avocado Going Bad? Use It In This Chocolate Mousse Recipe | Life Kit | NPR

215 views / 0 likes - added 2 years ago

After scrutinizing nearly every avocado in the produce section, you picked out the perfect one only to let it sit on your counter just a little too long. Now its not-so-green and a little mushy, and it feels like youre about to throw $1.70 straight into t
04:35
Precision Medicine And The Science Of Clumsy Robots

540 views / 0 likes - added 8 years ago

Today on SciShow News we talk about a new research effort that is aiming to revolutionize how we treat disease. We also discuss the video where Boston Dynamics shows off it's new version of the Atlas robot by using a hockey stick to mess with it and push
17:26 Popular
How To Draw Squirtle

1,455 views / 2 likes - added 9 years ago

Time for another Pokemon! How to draw Squirtle is fun and easy, just for kids. If you'd like to learn more and purchase the Pokemon Handbook on Amazon, click here (affil. link) http://bit.ly/afkhpokemonbook Also, here's the link to the oil pastel set we u
05:48 Popular
The Most Extreme Life Forms On Earth… And Beyond?

706 views / 0 likes - added 6 years ago

Life, uh… finds a way Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ What have we learned from exploring Earth’s harshest locations? That pretty everywhere we look for life, we find it. From smoking ho
02:17
Should You Walk or Run When It's Cold?

554 views / 0 likes - added 7 years ago

Hi! My name is Henry, I make MinutePhysics, and you can support me on Patreon: http://www.patreon.com/minutephysics Is it better to walk or run when it's cold out? If you run, then you have to deal with wind, wind chill, etc, but your body generates more
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04:03
How Many Languages Are There?

296 views / 0 likes - added 3 years ago

The answer is, of course, a bit more complicated than you might think. Written with Molly Ruhl and Gretchen McCulloch. Gretchen's podcast has an episode all about this: https://lingthusiasm.com/post/154520059101/lingthusiasm-episode-1-speaking-a-single-la
02:41 Popular
Why Are Metals Shiny?

839 views / 0 likes - added 6 years ago

We can all appreciate pretty shiny things, but what makes them shiny? We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017 Hosted by: ---------- Support SciShow by becoming a
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03:00
The Most Amazing 12 Year Old Freestyle Skateboarder!

629 views / 1 likes - added 6 years ago

At 12 years old, Isamu Yamamoto is one of the world's best freestyle skateboarders. Subscribe! http://bit.ly/1tLVDYk http://www.kumafilms.com/ Behind the Scenes/Vlog: http://bit.ly/1r81Ujw Facebook → https://www.facebook.com/KumaFilms Instagram → http://i
05:35 Popular
The Race to Invent the Periodic Table

1,169 views / 0 likes - added 6 years ago

This week on Reactions, we look at the chemistry of gallium, the science behind the holes in the periodic table, and the history of how the elements fell into place. Some chemists might see the periodic table of elements as a holy testament to the power o
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01:18 Popular
Can You Make 4 Triangles From 6 Matches?

970 views / 0 likes - added 7 years ago

Can you use 6 matches to make 4 triangles of equal size and equal shape? This is harder than it sounds! Give it a try before watching the video for a solution. If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecisions
04:22 Popular
Impossible Algebra Problem

1,231 views / 0 likes - added 7 years ago

This problem is making the rounds. Can you place numbers in the four boxes so all the equations are true? Blog post (text/image explanation): http://wp.me/p6aMk-4up If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecis
03:25 Popular
Can You Solve This? AA + BB + CC = ABC

2,457 views / 0 likes - added 7 years ago

If AA + BB + CC = ABC, what are the values of A, B, and C? All the digits are distinct and positive. Watch the video for a solution. Blog (text explanation): http://wp.me/p6aMk-4Cm If you like my videos, you can support me at Patreon: http://www.patreon.c
09:22
Why Do We Get Dizzy (…and Astronauts Don’t?)

431 views / 0 likes - added 5 years ago

You can check out Google's Science Journal app at http://g.co/ScienceJournal Follow me to BrainCraft! ►► https://youtu.be/rSRS9acrog0 ↓↓↓ More info and sources below ↓↓↓ We’ve all gotten dizzy before… but have you ever gotten WEIRD DIZZY? I teamed up with
04:02
Why Hardwoods Are The Softest Woods

253 views / 0 likes - added 3 years ago

Use the promo code "minuteearth" at https://curiositystream.com/minuteearth for 26% off an annual subscription to CuriosityStream, plus access to Nebula!Not all hardwood trees have hard wood and softwoods soft wood, because these terms denote their taxono
04:02
How Do Spacesuits Keep Astronauts Safe From The Vacuum Of Space?

676 views / 0 likes - added 8 years ago

There were many iterations of the spacesuit before astronauts started wearing what they do today, but how do they work? How Do Astronauts Poop in Space? ►►►► http://bit.ly/1SBdlNe Sign Up For The TestTube Newsletter Here ►►►► http://bit.ly/1myXbFG Read Mo
10:30
Can We Get Older Without Aging?

344 views / 0 likes - added 5 years ago

Learn more about opportunities from KiwiCo here: https://www.kiwico.com/okay SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Nothing is guaranteed in life except death, taxes, and entropy. What do other
01:57 Popular
I Will Read Your Mind - Math Magic Trick

1,241 views / 2 likes - added 7 years ago

Pick a 2 digit number. Got it? Now and add up the digits. Subtract that from your original number. Look up the resulting number in the table. Can I figure out the symbol you are looking at? This video predicts your symbol and explains why this math trick
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04:35
theredntve

96 views / 0 likes - added 6 months ago

This script was a nightmare to pronounce. Written with Molly Ruhl and Gretchen McCulloch. Gretchen's podcast has an episode all about this: https://lingthusiasm.com/post/662535562508517376/lingthusiasm-episode-60-thats-the-kind-of More Language Files: htt
06:24 Popular
The Seemingly Impossible Escape Logic Puzzle

1,435 views / 0 likes - added 7 years ago

An evil logician takes Alice and Bob captive. They have a chance to escape if they can deduce the total number of trees in the prison. Can they figure it out? Source of puzzle wu: riddles forum https://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi?board
04:52 Popular
Can You Solve The Two Rope Puzzle?

703 views / 0 likes - added 7 years ago

You have two ropes and a lighter. Each rope burns in 60 minutes, but the ropes do not burn at a constant rate. How can you measure 45 minutes by burning the ropes? Some of you might have heard this problem before. If so, try this variation: how can you me
03:48 Popular
Will This Hypnotize You?

1,323 views / 4 likes - added 8 years ago

Is hypnosis real? Here's the science! Watch us get hypnotized: https://youtu.be/LtElP2x5hCM SUBSCRIBE: http://bit.ly/asapsci Written by Rachel Salt, Gregory Brown and Mitchell Moffit GET THE ASAPSCIENCE BOOK: http://asapscience.com/book/ FOLLOW US! Instag
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05:19
What is Natto?

443 views / 0 likes - added 5 years ago

It’s a much-loved, protein-packed Japanese food standby. It’s also made of slimy, stinky soybeans. By popular request, this week Reactions is all about the chemistry of natto. Subscribe! http://bit.ly/ACSReactions Facebook! http://facebook.com/ACSReaction
06:24 Popular
Can You Solve The Chameleon Riddle?

989 views / 0 likes - added 7 years ago

A museum has 13 blue, 15 red, and 17 green chameleons. Whenever two chameleons of different colors meet, they both change into the color of the other chameleon (if blue and red met, for example, they would both turn green). As the chameleons mingle, is it
07:52 Popular
Find The 10 Digit Number Classic Puzzle And Solution

876 views / 0 likes - added 7 years ago

I'm thinking of a 10 digit number that uses the each digit 0 to 9 exactly once and where the number formed by the first n digits is divisible by n. What could my number be? The video explains how to find the answer using tests for divisibility. Blog post:
03:00
Multiply Numbers By Drawing Lines

615 views / 0 likes - added 6 years ago

Gow to multiply numbers by drawing lines. Get the Multiply By Lines Book! https://www.amazon.com/gp/product/1500866148/ If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecisions Connect on social media. I update each s
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10:20 Popular
SURPRISING Coin Flipping Probability - Flips To HH Versus HT

872 views / 0 likes - added 7 years ago

What is the expected number of coin flips until you get two heads in a row (HH)? What is the expected number of coin flips until you get a heads followed by a tails (HT)? The video presents the solution and an intuitive explanation for this probability ri
04:13 Popular
Adults Stumped By Geometry Problems For 10 Year Olds. Can You Solve Them?

837 views / 0 likes - added 7 years ago

These homework problems were given to 10 year old children (Year 5) in England (Glossop, Derbyshire) and they were posted to Facebook when some adults found them to be difficult. One person claimed the problems were impossible to solve. Can you figure the
03:17 Popular
Freestyle Football Tricks in London feat. Guinness World Record Holder Dan Magness

866 views / 1 likes - added 6 years ago

Freestyle football Guinness worlds record holder, Dan Magness, shows us some of his amazing freestyle football skills. Dan holds five Guinness world records. One for keeping the football on his head for 26 hours and another for walking 210 miles from Wemb
02:57 Popular
Viral Facebook Math Problem

1,279 views / 1 likes - added 7 years ago

This problem has over 2 million comments on Facebook and is getting coverage in mainstream media and blogs. Can you figure out this Facebook fruit algebra puzzle involving apples, bananas, and coconuts? The video presents what many people consider to be t
08:27
Can You Solve The 3 Cards Riddle?

673 views / 0 likes - added 7 years ago

There are 3 cards in this problem. One card is blue on both sides, another is red on both sides, and the last is red on one side and blue on the other. The cards are put in a bag and I pick one at random. Without looking at the colors on the card, I place
03:31 Popular
How Logical Are You? The Irrationality Illusion Tricks Most

799 views / 0 likes - added 7 years ago

This video relates a cognitive bias ("irrational" decision) to an optical illusion (picture at 1:45). For more, check out my new book, "The Irrationality Illusion: How to Make Smart Decisions And Overcome Bias" http://amzn.to/1o3FaAg Blog post (text and i
02:45
The Day After Tomorrow Is Yesterday Riddle. Can You Solve It?

693 views / 0 likes - added 7 years ago

This puzzle is popular on Facebook and many other sites. "When the day after tomorrow is yesterday, then today will be as far from Wednesday as today was from Wednesday when the day before yesterday was tomorrow. What day is today?" Can you solve this tri
02:23
This SAT Math Question Has A Mistake

653 views / 0 likes - added 7 years ago

This question appeared on the October 1980 SAT exam. Like all questions, it was supposed to have exactly one correct answer. However the test-makers made a mistake. Can you figure out what they did wrong? Blog post (text explanation): http://wp.me/p6aMk-4
03:33 Popular
Can You Solve This Intelligence Test? Viral Facebook Puzzle

729 views / 0 likes - added 7 years ago

If 6 + 4 = 210, and 9 + 2 = 711, what is the rule to combine numbers? This "intelligence test" has been shared more than 3 million times on Facebook. On Twitter people claim solving it means you have an IQ of more than 150 (genius level). In this video I
05:09 Popular
Can You Solve The Snake Eyes Probability Riddle?

834 views / 0 likes - added 7 years ago

You close your eyes and roll a pair of dice. The casino dealer announces that at least one of the rolls is showing a 1.What is the probability that both dice are showing a 1? Watch the video for the solution. (Snake eyes is a term for rolling a pair of 1s
05:54 Popular
Primitive Bow and Arrow

736 views / 3 likes - added 8 years ago

I made this bow and arrow using only primitive tools and materials.The bow is 1.25 m (55 inches) long and shoots 60 cm (2 feet) long arrows. I don't know the draw weight - safe to say greater than 15 kg (35 pounds) perhaps? The stave was made from a tree
06:34
Where Did We Come From?

682 views / 0 likes - added 7 years ago

Ready to untangle the branches of the human family tree? Part 1 of our special series on Human Ancestry. Watch it all: http://bit.ly/OKTBSHuman ↓↓↓More info and sources below ↓↓↓ In part 1 of our special series on human ancestry, we tour through our famil
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05:39 Popular
Can You Solve A 5th Grade Problem From China? Find The Area Of ABCD

784 views / 0 likes - added 5 years ago

Thanks to Eric from Miami for suggesting this problem and sending a solution! The diagram shows a quadrilateral ABCD with the values for some angles and the length of AB. Can you figure out the area of ABCD? Subscribe: https://www.youtube.com/user/MindYou
05:55 Popular
"Impossible" Logic Puzzle - How Many Liars Are At The Party?

800 views / 0 likes - added 7 years ago

A party has 100 people who are either liars are truth tellers. Liars always lie and truth tellers always say the truth. After the party you ask each person, "How many truth tellers did you shake hands with?" Each person gives a different answer from 0 to
03:28 Popular
Flower Math Problem - Adults Stumped By Question For Kids In China

1,380 views / 2 likes - added 7 years ago

This problem is said to come from a test given to a Chinese kindergarten class (5 year olds). It was posted online and caused a lot of debate as adults were stumped about the correct answer, some saying it is impossible. Can you figure it out? This video
04:53
Can You Solve The Friendship Riddle?

539 views / 0 likes - added 7 years ago

In a group of 6 people, you might find that some people are friends on Facebook, or you might find out that no one is friends on Facebook. Show that there is always a group of 3 people in which either: (a) all 3 people are mutual friends or (b) the 3 peop
01:49 Popular
This Matchstick Puzzle Is

842 views / 1 likes - added 7 years ago

This classic matchstick/toothpick puzzle is making the rounds because it is supposedly "extremely hard" for adults. Can you make 3 squares by moving 3 matchsticks? You cannot break any of the sticks, the resulting squares must be of equal size, and each t
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07:49 Popular
Can You Solve The Viral 9 = 72 Puzzle? The Correct Answer Explained

1,058 views / 0 likes - added 7 years ago

This problem has been shared millions of times on Twitter/Facebook with the claim "99% fail" to solve it and that only a genius could find the correct answer. If 9 = 72, 8 = 56, 7 = 42, 6 = 30, 5 = 20, then 3 = ? In this video I explain what many people b
06:01 Popular
Can You Solve The Viral 1 + 4 = 5 Puzzle? The Correct Answer Explained

11.8k views / 1 likes - added 7 years ago

This problem was shared on Facebook with the claim that only one in a thousand could figure it out. It went viral and generated over 3 million comments. Here is the problem. If 1 + 4 = 5, 2 + 5 = 12, 3 + 6 = 21, what is 8 + 11 = ? This video presents what
07:25 Popular
Can You Solve The Race To December 31 Riddle?

707 views / 0 likes - added 7 years ago

Here's a fun game you can play with another person. The game starts on January 1. Each of two players takes turns calling out another date. The new date has to be a later date in the year with either the same month OR the same day (from January 1, a playe
03:21 Popular
Can You Solve A Puzzle That Fooled Richard Feynman?

701 views / 0 likes - added 5 years ago

What is the radius of the circle, in simplest terms involving a, b, and c? I read that even the great mind Richard Feynman made a mistake. Watch the video to learn the common mistake and what the correct answer is. Source Feynman story http://web.media.mi
05:48
What Is The Area? "You Should Be Able To Solve This"

499 views / 0 likes - added 5 years ago

Thanks to Reio in Romania for emailing me this fun problem! What is the area? This puzzle was shared with the tagline "you should be able to solve this." Solution to 5th grade Chinese challenge problem https://youtu.be/OuJQaxZvlYs My blog post for this vi
09:11 Popular
Can You Solve The Rectangle Ratio Puzzle? The Surprising Answer

841 views / 0 likes - added 7 years ago

Start with a unit square (a rectangle with both sides equal to 1, call it R1). Attach a rectangle of area 1 to its right side, then attach a rectangle of area 1 to its top. The border of this new shape is another rectangle, call it R2. We can repeat the p
03:48 Popular
Can You Solve This Harvard Admissions Question? Algebra Problem, 1869

1,448 views / 0 likes - added 7 years ago

The Harvard admissions exam in 1869 included this algebra problem: "A man bought a watch, a chain, and a locket for $216. The watch and locket together cost three times as much as the chain, and the chain and locket together cost half as much as the watch
08:05 Popular
Can You Solve The Hardest Easy Geometry Problem?

1,258 views / 1 likes - added 7 years ago

In the figure, what is the value of angle x? This problem is known as Langley's Adventitious Angles. It is also known as the hardest easy geometry problem because it can be solved by elementary methods but it is notoriously difficult to work out. Can you
05:57 Popular
Can You Solve This 6th Grade Geometry Problem From Singapore? The Area Of A "Claw"

1,118 views / 1 likes - added 7 years ago

This problem was given to Primary 6 (age 11-12) students in Singapore. What is the area of the shaded region in the video, which consists of the region bounded by 4 quarter circles in a 3x3 grid of squares, and each square has a side length of 4? The shad
03:51 Popular
Can You Solve This MIT Admissions Question? Geometry Problem, 1869

933 views / 0 likes - added 7 years ago

The Massachusetts Institute of Technology (MIT) is one of the top ranked universities in the world. This question appeared on its admissions exam nearly 150 years ago. "The perpendicular dropped from the vertex of the right angle upon the hypotenuse divid
06:24
Can You Solve The Missing Sock Puzzle?

611 views / 0 likes - added 7 years ago

A statistician keeps a simple wardrobe. He only purchases pairs of black socks and white socks, and he keeps all of the socks in a pile in the drawer. Recently one of the socks was lost in the laundry. The socks have a mathematical property. If you select
02:51 Popular
The Horse Horseshoe Boots Viral Algebra Problem - The Correct Answer Explained

1,713 views / 2 likes - added 7 years ago

A lot of people are arguing over the correct answer to this algebra problem involving horses, horseshoes, and boots. A Facebook post with this problem has over 500,000 comments. Can you figure it out? In this video I explain the correct answer. Blog post:
11:27 Popular
Can You Solve The Viral 11x11 = 4 Puzzle? The Correct Answer Explained

3,035 views / 1 likes - added 7 years ago

If 11x11=4 and 22x22=16, what is 33x33=? This puzzle has been shared with the claim that only geniuses can solve it. It has gotten millions of views on the internet and Facebook as people have debated the correct answer. In this video I present what many
03:16 Popular
Can You Solve This 8th Grade Geometry Problem? 75% Got The Wrong Answer

988 views / 0 likes - added 7 years ago

What is angle A in the star-shaped figure? This problem appeared on the 1999 AMC 8 test (intended for 8th grade students in the US). Approximately 75% of test-takers did not mark the correct response. Can you figure it out? Watch the video for a solution.
05:26
Can You Solve The Red Ball Lottery Puzzle?

663 views / 0 likes - added 7 years ago

(Same video without the music: https://youtu.be/sz5oLEpc8xE) This problem involves 100 red balls, 100 blue balls, and 2 urns. First you distribute all the balls between the 2 urns, placing at least 1 ball in each urn. Next, you select an urn at random, an
07:21 Popular
Can You Solve The Magical Pond Puzzle?

1,018 views / 1 likes - added 7 years ago

(Same video with music: https://youtu.be/nF-Gpk0ZpRk) You visit a shrine that has 3 temples. Before each temple, you have to swim in a magical pond. Your path is pond-temple1-pond-temple2-pond-temple 3. Each time you swim, the pond magically triples the n
02:37 Popular
Adults Stumped By Maths Questions For 15 Year Olds. Can You Solve Them?

787 views / 0 likes - added 7 years ago

How hard are math tests? A survey asked 2,000 UK adults to answer sample GCSE test questions intended for 15 year old students. On average, the survey questions were missed by about 40% of adults. Can you solve them? The video presents 2 questions that ma
03:09
Can You Solve The Marriage Logic Problem? 80% Fail

669 views / 0 likes - added 7 years ago

Surveys have found 80 percent get this logic problem wrong. Alice is looking at Bob, and Bob is looking at Charlie. Alice is married; Charlie is not. Is a married person looking at an unmarried person? Answer choices are A) Yes, B) No, and C) Cannot be de
04:13 Popular
Can You Solve This Grade 12 Geometry Problem From Australia? The Marshmallow Chocolate Puzzle

893 views / 0 likes - added 7 years ago

A marshmallow has the shape of a cylinder with diameter 5 and height 3. A dessert is made with 24 marshmallows: there are two stacked layers of marshmallows, and each layer has 3 rows of 4 marshmallows. The gaps between the marshmallows are filled with ch
05:33 Popular
What is 6÷2(1+2) = ? The Correct Answer Explained

875 views / 0 likes - added 7 years ago

What is 6÷2(1+2) = ? This problem went viral and generated millions of comments on Facebook, Twitter, YouTube and social media sites. I explain how to get the correct answer by using the modern interpretation of the order of operations. I also explain how
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02:57 Popular
Can You Solve This Crazy Equation? Ramanujan's Radical Brain Teaser

1,083 views / 0 likes - added 7 years ago

In 1911, Srinivasa Ramanujan posed this problem involving an infinite nested radical (a never-ending expression that has square roots inside of square roots). Can you figure out how to simplify the equation? The video presents an intuitive solution. Techn
03:54 Popular
What's The Best Soup Can Size? The Optimal Cylinder Puzzle

788 views / 0 likes - added 7 years ago

A cylindrical can with volume V can be made in different ways. The cylinder can be wide and short (large radius and small height), or it can be narrower and taller (small radius and larger height). Which shape uses the least material? That is, which can h
07:40 Popular
Can You Solve The 21 Flags Game From Survivor?

876 views / 1 likes - added 7 years ago

Contestants on the TV show "Survivor" faced off in a series of challenges for a grand prize of $1 million. Most of the challenges were physical like hiking many miles or diving underwater. But one challenge was mathematical. The game had 21 flags and cont
08:51 Popular
The Viral Balloon Puzzle - The REAL Answer Explained (Using Ph.D. Level Math)

760 views / 0 likes - added 5 years ago

They say only geniuses can solve this puzzle, and this time they are correct. Thanks to all patrons! Special thanks to: Shrihari Puranik Yildiz Kabaran Kyle My blog post for this video https://wp.me/p6aMk-82U Sources https://puzzling.stackexchange.com/que
11:11
How America can leave fossil fuels behind, in one chart

352 views / 0 likes - added 3 years ago

And what the 2020 US election means for climate change.What do you think the presidential candidates should be talking about? http://vox.com/ElectionVideos All of recorded human history has happened during a period in which the average global temperature
09:50 Popular
Can You Solve This 6th Grade Geometry Problem From China?

1,255 views / 1 likes - added 7 years ago

What is the total area of the red spots? The diagram involves a rectangle with dimensions of 10 and 20. Inside the rectangle one of its diagonals is connected. There are two circles of equal size that are tangent to each other and the rectangle. The video
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05:52
Can You Solve The "MEANEST" SAT Test Question Ever?

690 views / 0 likes - added 5 years ago

On the SAT exam, you have about 2 minutes to read and solve each math question. This one about averages can send you in a loop, unless you approach it systematically. In the video I also explain a shortcut to help you solve this type of problem quickly. S
02:06 Popular
Can You Solve The Viral Matchstick Puzzle 6 + 4 = 4?

3,450 views / 0 likes - added 7 years ago

Can you fix 6 + 4 = 4 by moving 1 matchstick? This problem has gone viral on Facebook, with one post having over 400,000 shares. The ground rules are you cannot break a stick, it should be an equality (=), and you have to use 7-segment numbers (the block
03:25 Popular
Why Do Dogs Tilt Their Heads?

1,209 views / 3 likes - added 8 years ago

Is this adorable behavior rooted in sensory necessity or purposeful gesticulation? We explore what may be the cutest research ever. Learn more at HowStuffWorks.com: http://animals.howstuffworks.com/pets... Share on Facebook: Share on Twitter: Subscribe: h
06:18 Popular
Can You Solve The Diluted Wine Puzzle?

754 views / 1 likes - added 7 years ago

A servant has a method to steal wine. He removes 3 cups from a barrel of wine and replaces it with 3 cups of water. The next day he wants more wine, so he does the same thing: he removes 3 cups from the same barrel (now with diluted wine) and replaces it
04:30 Popular
Adults Are Arguing About This 3rd Grade Math Problem

883 views / 0 likes - added 7 years ago

"If Sue runs around the track twice, and John runs around the track four times more than Sue, how many times does John run around the track?" This problem was given to 3rd graders. A parent disagreed with the answer the teacher was marking. After it was p
11:57
The Wallis Formula For π

579 views / 0 likes - added 7 years ago

Start with the pair of fractions (2/1)(2/3). Now increment each number by 2 to get the pair of fractions (4/3)(4/5). Repeat this to get the next pair, and repeat this infinitely many times. If you then multiply all the fractions, you get a marvelous value
07:47 Popular
Can You Solve The Probability The Newborn Is A Boy? Many Fail This Interview Question

818 views / 0 likes - added 7 years ago

This problem has been asked in job interviews. On the morning of January 1, a hospital nursery has 3 boys and some number of girls. That night, a woman gives birth to a child, and the child is placed in the nursery. On January 2, a statistician conducts a
03:03 Popular
Is Makeup Bad For You?

934 views / 0 likes - added 7 years ago

Should you be using makeup? Science Makeup PARODY: https://youtu.be/ve-mr-fp7xk Subscribe for more: http://bit.ly/asapsci Written by Amanda Edward, Gregory Brown, Rachel Salt and Mitchell Moffit GET THE ASAPSCIENCE BOOK: http://asapscience.com/book/ FOLLO
07:39 Popular
Can You Solve The Alien Extinction Riddle? Hard Job Interview Question

860 views / 0 likes - added 7 years ago

A single alien lands on Earth. Every day after that, each alien on Earth undergoes a transformation, which could be any of the four equally likely events: (a) the alien dies, (b) the alien does nothing, (c) the alien replicates itself (2 aliens total), (d
04:31
why typing like this is sometimes okay.

424 views / 0 likes - added 4 years ago

Language changes over time, and that's fine. Time for a dose of descriptivism, as the Language Files return. Pull down the description for the references! MORE LANGUAGE FILES: https://www.youtube.com/playlist?list=PL96C35uN7xGLDEnHuhD7CTZES3KXFnwm0 Writte
18:39
Extreme Breath-Holding

93 views / 0 likes - added 7 months ago

This is how people can hold their breath for tens of minutes. Check out our sponsor: https://betterhelp.com/veritasium to get matched with a professional therapist who will listen and help.A huge thanks to Brandon Birchak for all his help with this video:
07:51 Popular
What's in Conditioner? | Ingredients With George Zaidan (Episode 8)

715 views / 0 likes - added 7 years ago

Conditioner: It makes your hair silky, smooth, and it’s a lot like … fat. ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Watch all episodes of Ingredients here: http://bit.ly/WatchIngredients ➡ New episodes every Thursday ➡ Get updates and tweet episode ide
04:11
How Fevers REALLY Work

239 views / 0 likes - added 2 years ago

Watch the new season of MinuteBody - and get access to both CuriosityStream and Nebula - at https://curiositystream.com/minuteearth.Fevers are one of our best weapons against infections, but they don't work like you might think. We'd like to give a big th
08:42 Popular
Nail Polish | Ingredients With George Zaidan (Episode 4)

769 views / 1 likes - added 7 years ago

Nail polish has a LOT of ingredients. Here's why. ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Watch all episodes of Ingredients here: http://bit.ly/WatchIngredients ➡ New episodes every Thursday ➡ Get updates and tweet episode ideas @georgezaidan About I
07:12 Popular
Shaving Foam | Ingredients With George Zaidan (Episode 3)

745 views / 0 likes - added 7 years ago

What gives shaving foam its lathery goodness? EXPLOSIVES!!! Just kidding. (Sort of.) ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Get updates and tweet episode ideas @georgezaidan ➡ New episodes every Thursday About Ingredients: Join MIT-trained chemist a
05:27 Popular
Can You Solve The Mind-Bending Self-Counting Sentence Riddle?

944 views / 0 likes - added 7 years ago

"In this sentence, the number of occurrences of the digit 0 is __, of the digit 1 is __, of the digit 2 is __, of the digit 3 is __, of the digit 4 is __, of the digit 5 is __, of the digit 6 is __, of the digit 7 is __, of the digit 8 is __, and of the d
05:50 Popular
Lipstick | Ingredients With George Zaidan (Episode 2)

805 views / 1 likes - added 7 years ago

Ground-up bugs? Rust? There might be some unexpected ingredients in your lipstick. ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Get updates and tweet episode ideas @georgezaidan ➡ New episodes every Thursday About Ingredients: Join MIT-trained chemist and
08:55
When Apes Conquered Europe

479 views / 0 likes - added 5 years ago

Check out Origin of Everything: https://www.youtube.com/channel/UCiB8h9jD2Mlxx96ZFnGDSJw Today, our closest evolutionary relatives, the apes, live only in small pockets of Africa and Asia. But back in the Miocene epoch, apes occupied all of Europe. Why ar
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Your Place in the Primate Family Tree

453 views / 0 likes - added 5 years ago

Our new sticker is available here: https://store.dftba.com/collections/eons And check out Tacos of Texas!: https://www.youtube.com/playlist?list=PLh_qdzak59m68-i4M441Rkr5j8c_mQ-en Purgatorius, a kind of mammal called a plesiadapiform, might’ve been one of
06:45 Popular
Toothpaste | Ingredients With George Zaidan (Episode 1)

877 views / 0 likes - added 7 years ago

Ancient toothpaste used stuff like rocks and bones -- and modern toothpaste isn’t all that different. Watch as chemist George Zaidan tries to create his own homemade toothpaste. ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Watch all episodes of Ingr
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Can The Words You Read Change Your Behavior?

385 views / 0 likes - added 4 years ago

"Priming" is the idea that the words you read can change the way you act. And yes, there are papers that show an effect: but we also need to talk about the Replication Crisis. MORE LANGUAGE FILES: https://www.youtube.com/playlist?list=PL96C35uN7xGLDEnHuhD

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