Search Results: "Circumference"

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04:51
Relating circumference and area

683 views / 0 likes - added 6 years ago

Relating circumference and area
03:36
Finding Radius And Diameter From Circumference

609 views / 0 likes - added 8 years ago

Finding radius and diameter from circumference
03:09 Popular
Circumference of a Circle

745 views / 0 likes - added 9 years ago

u07_l2_t3_we2 Circumference of a Circle
02:59 Popular
Arc Length As Fraction Of Circumference

1,254 views / 0 likes - added 9 years ago

Arc length as fraction of circumference More free lessons at: http://www.khanacademy.org/video?v=XFI7GK4Nv-s
06:13
Calculating the circumference of the Earth in 200 BC

524 views / 0 likes - added 5 years ago

In one of the dopest displays of critical thinking in history, Eratosthenes estimated the circumference of the Earth. All he had was a pole, the sun, knowledge of a famous well in Egypt, and potentially money to pay someone to walk the distance between tw
07:56 Popular
Math Antics - Circles, Circumference And Area

1,784 views / 0 likes - added 9 years ago

Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
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07:32
How simple ideas lead to scientific discoveries

619 views / 0 likes - added 5 years ago

Adam Savage walks through two spectacular examples of profound scientific discoveries that came from simple, creative methods anyone could have followed -- Eratosthenes' calculation of the Earth's circumference around 200 BC and Hippolyte Fizeau's measure
06:42
Proving the earth was round over 2,200 years ago. Eratosthenes. Carl Sagan. Cosmos.

587 views / 0 likes - added 5 years ago

Carl Sagan - Cosmos - Eratosthenes.Carl Sagan talks about Eratosthenes, the man who estimated the circumference of the earth using just a stick, eyes, feet and his brains, debunking flat earthers over 2,200 years ago.
01:00
The Craziest Fact I Know - String Around The Earth Puzzle

33 views / 1 likes - added 1 month ago

The String girdling Earth is a mathematical puzzle with a counterintuitive solution. In a version of this puzzle, string is tightly wrapped around the equator of a perfectly spherical Earth. If the string should be raised 1 meter (3 ft 3 in) off the groun
03:45
The Infinite Life Of Pi - Reynaldo Lopes

580 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-infinite-life-of-pi-reynaldo-lopes The ratio of a circle's circumference to its diameter is always the same: 3.14159... and on and on (literally!) forever. This irrational number, pi, has an infinite number
04:58 Popular
How Long Would It Take To Walk Around The World?

797 views / 2 likes - added 8 years ago

Ben explains what goes into calculating how long it would take to traverse the globe on foot, and tells us about some intrepid explorers who've tried to do it. Learn more at HowStuffWorks.com. Share on Facebook: https://goo.gl/CBwvRQ Share on Twitter: htt
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01:22 Popular
Circle in Circle. Optical illusion

941 views / 0 likes - added 5 years ago

Probably this is the first Cardano's Hypocycloid mechanical model, not animation, that model makers have ever built. This motion was described first by Nicolaus Copernicus Consider two circles of radii R and R/2 with the smaller one rolling inside the big
14:33
10 Magic Pranks To Do At Home!

397 views / 3 likes - added 3 years ago

Funny pranks, magic tricks and challenges you can do at home!Subscribe here http://bit.ly/SubToEvanMagic Shop here http://www.EvanEraTV.comSend Mail ToPO Box 943Crestwood KY 40014 USALaugh@Life Merch http://www.ShopLaughAtLife.comBecome a Member http://bi
07:05
3 proofs that debunk flat-Earth theory | NASA's Michelle Thaller | Big Think

369 views / 0 likes - added 3 years ago

3 proofs that debunk flat-Earth theory | NASA's Michelle Thaller | Big Think New videos DAILY: https://bigth.ink Join Big Think Edge for exclusive video lessons from top thinkers and doers: https://bigth.ink/Edge ------------------------------------------
05:24
What If We Dug A Tunnel Through The Earth?

550 views / 0 likes - added 7 years ago

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