Math

03:43 New
Can you solve the unstoppable blob riddle?  Dan Finkel
/ 30 viewsA shooting star crashes onto Earth and unleashes a hideous, rampaging blob. Can you stop it from destroying the planet?  A shooting star crashes onto Earth and a hideous blob emerges. It creeps and leaps, it glides and slides. It’s also unstoppabl

15:53 New
April Fool's! Teacher + students pull off the ultimate prank.
/ 19 viewsWARNING! A sense of humor is required for this video. What happens when half the class returns from a school trip? Well obviously, they get pranked by the remaining students and their teacher. What else could there be? Remember that playing gags is an art

04:25
Can You Solve this Vampire Riddle?  NUMBER CRUSHERS
/ 5 viewsCan You Solve this Vampire Riddle? See if you have the smarts to solve this bloodsucking riddle! Will Jon wake up before the Zombie strikes? Will Gary sink into quicksand before his friend can save him? Take a guess or do the math to know what happens on

13:59
Blippi Visits an Ice Cream Truck  Math and Simple Addition for Children
/ 26 viewsBlippi visits an ice cream truck and learns numbers for children. Learn math and simple addition with ice cream bars and snacks with Blippi. See inside the ice cream truck with Blippi in his educational videos for children. This Blippi video has a Blippi

13:46
Algebra Basics: Laws Of Exponents  Math Antics
/ 13 viewsLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

11:09
Math Antics  Exponents and Square Roots
/ 16 viewsThis is a reupload. It contains only minor changes to terminology. To learn more about Math Antics, visit www.mathantics.com

10:05
Math Antics  Intro To Exponents (aka Indices)
/ 16 viewsThis is a reupload. It is mostly the same as the previous release, but clarifies some terminology regarding the use of the word "power". To learn more about Math Antics, visit www.mathantics.com

03:31
Will a Swing Save You From an Earthquake?!  NUMBER CRUSHERS
/ 26 viewsWill a Swing Save You From an Earthquake?! Izzy challenges you to solve this earth shaking problem. Will Jon wake up before the Zombie strikes? Will Gary sink into quicksand before his friend can save him? Take a guess or do the math to know what happens

06:05
Could These Numbers Unravel New Dimensions in Space?
/ 13 viewsThese multidimensional number systems are helping us explain the laws of nature. Here’s how. Can Hawking’s Black Hole Paradox Be Solved With Fuzzballs?  https://youtu.be/esPa1tVSjew Read More: The Peculiar Math That Could Underlie The Laws of Nature http

04:54
The problem in Good Will Hunting  Numberphile
/ 15 viewsWe now have a Tumblr: Tumblr: http://numberphile.tumblr.com This paper on ebay: http://www.ebay.co.uk/itm/221197137799? More links & stuff in full description below ↓↓↓ Just how hard was the second problem cracked by Will in Good Will H

11:52
158,962,555,217,826,360,000 (Enigma Machine)  Numberphile
/ 24 viewsThe Nazi's Enigma Machine  and the mathematics behind it  was a crucial part of World War II. Flaw video at: http://www.youtube.com/watch?v=V4V2bpZlqx8 More links & stuff in full description below ↓↓↓ Brown papers on ebay: bit.ly/brow

03:40
Can Math Save You from Quicksand?  NUMBER CRUSHERS
/ 10 viewsCan Math Save You from Quicksand? Can you think on your feet fast enough to solve this math puzzler? Will Jon wake up before the Zombie strikes? Will Gary sink into quicksand before his friend can save him? Take a guess or do the math to know what happens

06:10
Can You Solve the Evil Librarian's Deadly Riddle?  NUMBER CRUSHERS
/ 40 viewsCan You Solve the Evil Librarian's Deadly Riddle? Izzy challenges you to solve three mindboggling riddles! Will Jon wake up before the Zombie strikes? Will Gary sink into quicksand before his friend can save him? Take a guess or do the math to know what

03:35
Can You Solve the Haunted Hopscotch Problem?  NUMBER CRUSHERS
/ 30 viewsCan You Solve the Haunted Hopscotch Problem? Grab your chalk and rocks because Number Wunderkid Izzy has challenged you to solve this spooky problem. Will Jon wake up before the Zombie strikes? Will Gary sink into quicksand before his friend can save him?

09:02
How To Think About Imaginary Numbers
/ 26 viewsSign up to brilliant.org with this link to receive a 20% discount! https://brilliant.org/upandatom/ For more info on imaginary numbers read these articles! https://betterexplained.com/articles/avisualintuitiveguidetoimaginarynumbers/ http://acko.net

12:31
Can You Guess Who's Lying? 3 Logic Riddles to Train Your Problem Solving Skills
/ 40 viewsGet better at problem solving today with Brilliant! The first 200 people to sign up will get a 20% discount: https://brilliant.org/upandatom Hi! I'm Jade. Subscribe to Up and Atom for new physics, math and computer science videos every two weeks! *SUBSCRI

09:08
How Knot To Hang A Painting
/ 14 viewsSubscribe to Up and Atom! https://www.youtube.com/channel/UCSIvk78tK2TiviLQn4fSHaw/ or start with Jade's video on quantum tunnelling: https://www.youtube.com/watch?v=WPZLRtyvEqo You've got a painting and two nails. Can you use both nails to hang the paint

03:52
Can you solve the vampire hunter riddle?  Dan Finkel
/ 66 viewsYou’re a vampire hunter entering the enemy’s lair. Can you outsmart this tricky brainteaser and vanquish the vampires?  You’ve stealthily descended into the darkness of a vampire cave, setting a sequence of mirrors as you go. When the sun reaches the ri

04:01
Can You Survive the Grasp of King Kong?  NUMBER CRUSHERS
/ 24 viewsCan You Survive the Grasp of King Kong? Number Pro Izzy challenges you to solve this largerthanlife math problem! Will Jon wake up before the Zombie strikes? Will Gary sink into quicksand before his friend can save him? Take a guess or do the math to kn

04:46
Should we count in 12s rather than 10s?  BBC Ideas
/ 18 viewsIs there a better way to count? We use a decimal system  based on the number 10, but some people think it would be easier to live in a dozenal world. Here is the case for counting in 12s. Subscribe to BBC Ideas https://bbc.in/2F6ipav This video was made

13:56
Math Antics  Units of Distance
/ 28 viewsLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

06:02
The Perfect Stack of Maltesers
/ 40 viewsDr Eugenia Cheng, Senior Lecturer in Mathematics from the University of Sheffield, discusses the mathematics behind the perfect stack of Maltesers http://www.sheffield.ac.uk/maths

03:13
Will You Survive the Zombie Apocalypse?!  NUMBER CRUSHERS
/ 39 viewsWill You Survive the Zombie Apocalypse?! MathWiz Izzy challenges you to solve this undead brain teaser! Will Jon wake up before the Zombie strikes? Will Gary sink into quicksand before his friend can save him? Take a guess or do the math to know what hap

04:39
Can you solve the multiplying rabbits riddle?  Alex Gendler
/ 45 viewsSign up for our newsletter and never miss an animation: http://bit.ly/TEDEdNewsletter View full lesson: https://ed.ted.com/lessons/canyousolvethemultiplyingrabbitsriddlealexgendler After years of experiments, you’ve finally created the pets of the

02:59
The BelousovZhabotinsky Reaction  Christmas Lectures with Ian Stewart
/ 30 viewsIan Stewart demonstrates the classic oscillating BZ reaction as an example of symmetry breaking or nonequilibrium thermodynamics. Subscribe for regular science videos: http://bit.ly/RiSubscRibe Watch the full lecture: http://www.rigb.org/christmaslectur

08:01
Surface Area to Volume Ratios  Christmas Lectures with Philip Morrison
/ 30 viewsThe mathematicians of Lilliput assumed that Gulliver would need 1728 times as much food as an individual Lilliput. Philip Morrison shows why this is not true, using surface area to volume ratios. Watch the full lecture: http://www.rigb.org/christmaslectu

18:05
This is what an 1869 MIT entrance exam looks like
/ 41 viewsExplore the foundation of algebra at https://brilliant.org/tibees/ View this exam:https://libraries.mit.edu/archives/exhibits/exam/algebra.html MIT exam archives: https://libraries.mit.edu/archives/exhibits/exam/ In this video I look at the algebra sectio

09:38
How to find the square root of a decimal number without a calculator
/ 39 viewsCuriosityStream: http://curiositystream.com/tibees This video follows on from my previous video where I reviewed an exam from 1866. Finding the square root of a decimal number by hand is not so tricky once you learn this algorithm, but is a skill that is

10:21
Proving 1=2 Bob Ross Style
/ 35 viewsStart learning new skills today at: https://skl.sh/tibees2 Todays episode looks at one 'proof' of 1=2 and points out its flaws. The moral is that you must make sure you are not accidentally dividing by zero in your calculations and also that you should al

02:01
A Pattern in Prime Numbers ?
/ 37 viewsAn interesting phenomenon I stumbled upon recently. Hope you find it as fascinating as me. If there are any mathematicians in the audience who can explain this, (in a simple way) feel free to comment. (Oh, and yes, I returned the voice to Professor Hawkin

08:25
What is a Fourier Series? (Explained by drawing circles)  Smarter Every Day 205
/ 70 viewsGet a free crate for a kid you love (Awesome Chrsitmas gifts) at: https://www.kiwico.com/smarter Click here if you're interested in subscribing: http://bit.ly/Subscribe2SED ⇊ Click below for more links! ⇊ Doga's a super smart dude who writes a Turkish blo

04:32
Can you solve the time travel riddle?  Dan Finkel
/ 56 viewsPractice more problemsolving at https://brilliant.org/TedEd/ Solution to bonus riddle: https://brilliant.org/TedEdTimeTravel/ Your professor has accidentally stepped through a time portal in his physics lab. You’ve got just a minute to jump through befor

12:58
Primes on the Moon (Lunar Arithmetic)  Numberphile
/ 38 viewsFeaturing Neil Sloane from the Online Encyclopedia of Integer Sequences (OEIS). Lunar Arithmetic (aka Dismal Arithmetic) More links & stuff in full description below ↓↓↓ Neil Sloane is the founder of the OEIS: https://oeis.org Lunar Primes: https://oeis.o

05:43
The Most Evil Number  Numberphile
/ 46 viewsBelphegor's Prime... Don't miss the extra footage on Numberphile2: https://youtu.be/9CcI5M1LfRs Belphegor Merch: http://www.bradyharanblog.com/blog/belphegorsprimetshirt More links & stuff in full description below ↓↓↓ This video features Professor Ton

13:48
Squaring Primes  Numberphile
/ 39 viewsMatt Parker is squaring primes. The Great Courses Plus free trial: http://ow.ly/JE3G30hIvoE (episode sponsor) More links & stuff in full description below ↓↓↓ More Matt Parker on Numberphile: http://bit.ly/Matt_Videos Matt's book on Amazon... US: http://b

08:13
What Number Comes Next?  Numberphile
/ 29 viewsMaybe pause the video and see if you can figure these out? Featuring Neil Sloane of OEIS fame... More links & stuff in full description below, including spoilers ↓↓↓ Extra footage from this video: https://youtu.be/ydn7s93GRc Neil Sloane is the founder of

09:18
The Centrifuge Problem  Numberphile
/ 38 viewsMore videos with Dr Holly Krieger: http://bit.ly/HollyKrieger More links & stuff in full description below ↓↓↓ Dr Holly Krieger is based at Murray Edwards College, University of Cambridge. Want some chemistry videos? Brady does those too: https://www.yout

07:24
The Raisin Bran Effect
/ 43 viewsAKA "The Brazil Nut Effect" but brazil nuts are blah You can learn more at https://curiositystream.com/smart ↓↓↓ More info and sources below ↓↓↓ The bottom of the cereal box is a disappointing place. But at least now you know why. Where do you see the Bra

03:38
Can you solve the giant iron riddle?  Alex Gendler
/ 125 viewsPractice more problemsolving at https://brilliant.org/TedEd/ Solution to bonus riddle: https://brilliant.org/TedEdGiantIron/ The family of giants you work for is throwing a fancy dinner party, but there’s a problem — the elder giant’s favorite shirt is w

01:53
How to Divide Fractions
/ 56 viewsWatch more Basic Math Skills videos: http://www.howcast.com/videos/262765HowtoDivideFractions Math can be scary, but don't give up. Follow these simple steps, and soon you'll be dividing fractions like a pro. Step 1: Write the problem Write out the fi

14:07
10 MATH TRICKS THAT WILL EMBARRASS YOUR TEACHER
/ 57 viewsINCREDIBLY COOL MATH TRICKS FOR KIDS This video is dedicated to all those people who think that math was boring. Today, we are here to prove the opposite! In this video, we collected the coolest math tricks for all ages. It doesn't matter if you're 6 or 6

04:29
Can you solve the secret werewolf riddle?  Dan Finkel
/ 229 viewsPractice more problemsolving at https://brilliant.org/TedEd/ Signup to receive the bonus riddle's solution: https://brilliant.org/TedEdWerewolf/ You’re on the trail of a werewolf that’s been terrorizing your town. After months of detective work, you’ve n

05:19
The fascinating history of cemeteries  Keith Eggener
/ 57 viewsCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/thefascinatinghistoryofcemeterieskeitheggener Spindly trees, rusted gates, crumbling stone, a solitary mourner: these things come to mind when we

04:51
Can you solve the stolen rubies riddle?  Dennis Shasha
/ 126 viewsPractice more problemsolving at https://brilliant.org/TedEd/ Solution to Bonus Riddle: https://brilliant.org/TedEdRuby/ Townspeople are demanding that a corrupt merchant’s collection of 30 rubies be confiscated to reimburse the victims of his schemes. Th

04:52
Can you solve the killer roboants riddle?  Dan Finkel
/ 151 viewsPractice more problemsolving at https://brilliant.org/TedEd/ Solution to Bonus Riddle: https://brilliant.org/TedEdRoboAnts/ The good news is that your experimental roboants are a success. The bad news is that you accidentally gave them the ability to sh

10:56
Kissing Numbers  Numberphile
/ 71 viewsFeaturing James Grime... Check out Brilliant (and get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ Sphere trilogy: http://bit.ly/Sphere_Trilogy More Dr James Grime on Numberph

12:11
The Best Way to Pack Spheres  Numberphile
/ 50 viewsFeaturing James Grime... Check out Brilliant (and get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ Sphere trilogy: http://bit.ly/Sphere_Trilogy Strange Spheres in Higher Dimen

10:38
Every Number is the Sum of Three Palindromes  Numberphile
/ 54 viewsFeaturing James Grime... Check out Brilliant (and get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ More James Grime videos on Numberphile: http://bit.ly/grimevideos Main paper

09:16
What's the Most Unlikely Thing That Could Happen to You?
/ 58 viewsStart learning intuitively with Brilliant for 20% off by being of the first 200 people to sign up at http://brilliant.org/RealLifeLore/ Mistake is made at the 1:49 mark. The chances of guessing a random 4digit pin code are 1 in 10,000, not 1 in 1,000. Ig

1:01:57
100 EPIC SCHOOL HACKS YOU SHOULD KNOW
/ 85 viewsDo you love school? I surely did! Whatever your answer is, the coming Live stream will be dedicated to hacks to make your schooltime easier and more pleasant! Join Live chat! Subscribe to 5Minute MAGIC: http://bit.ly/2ldditZ 5Minute Crafts: https://www

16:34
18 EASY WAYS TO TEACH MATH TO CHILDREN
/ 32 viewsTEACHING BASIC MATH TO KIDS We know many ways to keep toddlers entertained. Today we are here to prove that math can be fun! It's important not only to keep them happy and excited but also to educate and develop them. There are many basic skills to train

04:30
How Much Tea Would it Take to Turn the Boston Harbor into Tea?
/ 120 viewsWe wanted to know if enough tea was dumped in Boston harbor during the Boston tea party to turn the entire thing to tea. So we did some math. Subscribe! http://bit.ly/ACSReactions Facebook! http://facebook.com/ACSReactions Twitter! http://twitter.com/ACSR

01:57
Is 7 Really a “Lucky” Number?  COLOSSAL QUESTIONS
/ 241 viewsIn different cultures all across the world, the number 7 is considered to be a little extra lucky! But when did people start calling 7 lucky, and why did it catch on?? Welcome to COLOSSAL QUESTIONS, the show that answers all of life's most pressing questi
Featured 
05:09
Can you solve the alien probe riddle?  Dan Finkel
/ 92 viewsPractice more problemsolving at https://brilliant.org/TedEd/ Solution to Bonus Riddle: https://brilliant.org/TedEd3ColorCube/ Your team has developed a probe to study an alien monolith. It needs protective coatings — in red, purple or green — to cope wit

19:53
Linear Algebra  Matrix Transformations
/ 50 viewsMatrix multiplication and linear algebra explained with 3D animations.

01:46
Visualizing division by fractions
/ 170 views3D animation giving an intuitive understanding of what it means to divide by a fraction.
Featured 
07:15
Product Rule for derivatives: Visualized with 3D animations
/ 62 viewsVisual representation of the product rule for derivatives in Calculus.

08:23
Polynomial derivatives: 3D visualization
/ 52 viewsHow to visualize the derivatives of polynomials.

16:29
Trigonometry  Easy to understand 3D animation
/ 57 viewsIMPORTANT CORRECTION: The proper way to write the law of cosines is C^2 = A^2 +B^2  2AB cos(Ψ)

19:04
Calculus  The foundation of modern science
/ 49 viewsEasy to understand explanation of integrals and derivatives using 3D animations.

40:00
Algebra and Mathematics. Explained with easy to understand 3D animations.
/ 54 viewsExplains variables, systems of equations, Cartesian coordinates, and many other concepts. Fun and educational for all ages.

03:51
Drawing the 4th, 5th, 6th, and 7th dimension
/ 48 viewsHow to draw 4, 5, 6, and 7 dimensional objects.

19:56
Laplace Transform Explained and Visualized Intuitively
/ 73 viewsLaplace Transform explained and visualized with 3D animations, giving an intuitive understanding of the equations. My Patreon page is at https://www.patreon.com/EugeneK

24:49
Stability Analysis, State Space  3D visualization
/ 46 viewsIntroduction to Stability and to State Space. Visualization of why real components of all eigenvalues must be negative for a system to be stable. My Patreon page is at https://www.patreon.com/EugeneK

12:42
Eigenvalues and Eigenvectors, Imaginary and Real
/ 50 views3D visualization of eigenvectors and eigenvalues. Includes imaginary and real components. My Patreon page is at https://www.patreon.com/EugeneK

22:56
Quantum Spin  Visualizing the physics and mathematics
/ 46 viewsQuantum spin states explained with 3D animations. My Patreon page is at https://www.patreon.com/EugeneK

16:02
Double integrals and Polar integrals: Explained with 3D visualizations
/ 55 viewsDouble integrals in rectangular and polar coordinates. Explained with easy to understand 3D animations. My Patreon page is at https://www.patreon.com/EugeneK

05:24
Gradients and Partial Derivatives
/ 43 views3D visualization of partial derivatives and gradient vectors. My Patreon account is at https://www.patreon.com/EugeneK

25:33
Divergence and Curl
/ 42 viewsVisualization of the Divergence and Curl of a vector field. My Patreon Page: https://www.patreon.com/EugeneK

14:33
Imaginary Numbers, Functions of Complex Variables: 3D animations.
/ 61 viewsVisualization explaining imaginary numbers and functions of complex variables. Includes exponentials (Euler’s Formula) and the sine and cosine of complex numbers.

22:48
Probability  Quantum and Classical
/ 46 viewsThe Law of Large Numbers and the Central Limit Theorem. Probability explained with easy to understand 3D animations. Correction: Statement at 13:00 should say "very close" to 50%.

15:45
Fourier Transform, Fourier Series, and frequency spectrum
/ 46 viewsFourier Series and Fourier Transform with easy to understand 3D animations.

04:47
Puzzles: 5 "easy"... and one impossible!! (with answers)
/ 98 views★★ For more broccoli puzzles stuffs... Subscribe to DB! ★★ The überchallenge is to solve the impossible parking lot question (brain teaser puzzle) at the end. But first warm up with some supposedly "easy" puzzles at the beginning. I hope you enjoy it and

03:50
Most People Fail!! (IQ test with answers)
/ 88 viewsMost people fail!! That's because they are either artists or scientists, but rarely both! See if you are smart enough to pass this Brain Test. Let me know in the comments! I hope you enjoy this brain challenge. I have combined visual memory with number me

03:28
95% Fail: 8 funny trick questions your friends will ALWAYS get wrong! (with answers)
/ 144 viewsThese are 8 awesome trick questions your friends will always get wrong! Guaranteed! :) I have picked these 8 funny brain teasers because I am sure that noone would get them right when asked spontaneously. See for yourself, whether you will get the right

05:18
Can you solve the rebel supplies riddle?  Alex Gendler
/ 115 viewsPractice more problemsolving at https://brilliant.org/TedEd/ Solution to Bonus Riddle: https://brilliant.org/tededmislabelledboxes/ You’re overseeing the delivery of supplies to a rebel base in the heart of enemy territory. To get past customs, all packa

04:33
Fractals: The Geometry of Chaos  Christmas Lectures with Ian Stewart
/ 58 viewsUsing a simple set of mathematical rules, a very intricate geometry can be created in the form of fractals. The Sierpinski triangle is a famous example. Subscribe for regular science videos: http://bit.ly/RiSubscRibe Watch the full lecture: http://www.rig

07:45
The Monty Hall Problem  Christmas Lectures with Ian Stewart
/ 54 viewsIan Stewart explains the Monty Hall problem and its solution. Subscribe for regular science videos: http://bit.ly/RiSubscRibe The Monty Hall problem became infamous in the 1990s where newspaper columnist and puzzle solver Marilyn vos Savant offered a solu

02:50
Urban planners aim to eliminate slums—with a mathematical approach
/ 167 viewsResearchers are testing a tool based on a "topological view" of cities and slums to improve the design of growing urban areas Read the story: https://scim.ag/2Nv8Gw1 Read the paper (free): http://advances.sciencemag.org/content/4/8/eaar4644 CREDITS 

02:09
What is a fractal? A lens to infinity
/ 166 viewsA fractal pattern is a kind of equation occurring all around us in nature. So what's a fractal and what does it have to do with nautiluses, romanesco broccoli, Star Trek II: The Wrath of Khan, peacocks, and predicting diseases? SUBSCRIBE! for more Popular

01:34
Matchstick Dog
/ 273 viewsIf you solve this puzzle before the answer is given, you are the topdog in the class. Congratulations! SUBSCRIBE NOW http://www.youtube.com/subscription_center?add_user=CuriosityShow CONNECT WITH CURIOSITY Facebook ➤ http://www.facebook.com/CuriosityShow

01:30
LeftFacing Fish
/ 271 viewsDeane and Rob present a matchstick problem concerning leftfacing and rightfacing fish. See if you can solve the problem before the answer is given. SUBSCRIBE NOW http://www.youtube.com/subscription_center?add_user=CuriosityShow CONNECT WITH CURIOSITY Fa

02:00
Maps, States & Borders
/ 166 viewsDeane challenges Rob with a mathematical problem concerning maps, states and borders. SUBSCRIBE NOW http://www.youtube.com/subscription_center?add_user=CuriosityShow CONNECT WITH CURIOSITY Facebook ➤ http://www.facebook.com/CuriosityShow Twitter ➤ https:/

02:36
Making Toast Fast
/ 132 viewsDeane presents a mathematical problem which starts with a broken toaster and ends with fast toast! SUBSCRIBE NOW http://www.youtube.com/subscription_center?add_user=CuriosityShow CONNECT WITH CURIOSITY Facebook ➤ http://www.facebook.com/CuriosityShow Twit

04:39
The mysterious isochronous curve
/ 100 viewsIt's a big name, but the isochronous curve deserves it. Rob shows you how to draw one easily and then how to investigate its extraordinary properties.

04:12
Window Puzzles
/ 271 viewsDeane presents two window puzzles which depend on your ability to compare areas. SUBSCRIBE NOW http://www.youtube.com/subscription_center?add_user=CuriosityShow CONNECT WITH CURIOSITY Facebook ➤ http://www.facebook.com/CuriosityShow Twitter ➤ https://twit

01:51
How to cut a pipe squarely
/ 125 viewsCutting a section of pipe or cylindrical rod is tricky  the cut goes sideways or doesn't meet itself, but Rob shows a simple way to cut a pipe squarely every time.

01:41
Measuring Volume with a Ruler
/ 270 viewsDeane demonstrates a method for measuring the volume of an irregular container. SUBSCRIBE NOW http://www.youtube.com/subscription_center?add_user=CuriosityShow CONNECT WITH CURIOSITY Facebook ➤ http://www.facebook.com/CuriosityShow Twitter ➤ https://twitt

03:42
MagicallyLinked Donuts
/ 66 viewsDeane challenges viewers to find a way to cut a donut in halves, forming two linked circles. SUBSCRIBE NOW http://www.youtube.com/subscription_center?add_user=CuriosityShow CONNECT WITH CURIOSITY Facebook ➤ http://www.facebook.com/CuriosityShow Twitter ➤

05:39
Can You Solve A 5th Grade Problem From China? Find The Area Of ABCD
/ 187 viewsThanks 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

08:51
The Viral Balloon Puzzle  The REAL Answer Explained (Using Ph.D. Level Math)
/ 165 viewsThey 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/p6aMk82U Sources https://puzzling.stackexchange.com/que

07:52
What Does a 4D Ball Look Like in Real Life? Amazing Experiment Shows Spherical Version of Tesseract
/ 263 viewsFollow me on: Get your subscription box here: https://www.theactionlab.com Twitter: https://twitter.com/theactionlabman Facebook: https://www.facebook.com/theactionlabrat In this video I show you what a movement through a fourth spatial dimension would lo

05:08
Can you solve the Leonardo da Vinci riddle?  Tanya Khovanova
/ 250 viewsPractice more problemsolving at https://brilliant.org/TedEd/ Solution to Bonus Riddle: https://brilliant.org/tededautobiographical/ You’ve found Leonardo da Vinci’s secret vault, secured by a series of combination locks. Fortunately, your treasure map ha

07:58
ARCHIMEDES  The Greatest Mathematician And Inventors In History  Vlog #40 by HooplakidzLab
/ 243 viewsThe Most Famous Mathematician and Inventors In History  The ARCHIMEDES. Today,s Vlog is all about the life of Archimedes, his Legacy, and Inventions. Do share your thoughts in the comment section down below. Subscribe HooplakidzLab: http://bit.ly/1V77IUh

16:55
Calculating π by hand: the Chudnovsky algorithm
/ 252 viewsFor Pi Day 2018 I calculated π by hand using the Chudnovsky algorithm. https://en.wikipedia.org/wiki/Chudnovsky_algorithm k = 0 42698672/13591409 = 3.141592751... k = 0 and k = 1 42698670.666333435968/13591408.9999997446 = 3.14159265358979619... Watch m

14:53
How thick is a threesided coin?
/ 219 viewsGo check out the puzzles over on Brilliant! https://brilliant.org/standupmaths Use the URL above to help support this video and get 20% off the paid premium versions. Once you’ve done that: help us calculate the thickness of a threesided coin! The bonus

14:53
THE SCUTOID: did scientists discover a new shape?
/ 112 viewsRead the Nature paper for yourself: "Scutoids are a geometrical solution to threedimensional packing of epithelia" https://www.nature.com/articles/s41467018053761 Thanks to Laura and Clara for helping me with the video! You can download Laura's model

12:17
How to detect bank fraud with maths
/ 244 viewsI chat to Daniel from the financial crime and security team at Monzo to talk about how they used maths to detect a data breach at Ticketmaster which exposed people to bank fraud. Here is their post about what happened: https://monzo.com/blog/2018/06/28/ti

02:23
Tricks to Learn When Multiplying and Dividing Fractions With Mixed Numbers
/ 372 viewsTricks to Learn When Multiplying and Dividing Fractions With Mixed Numbers. Part of the series: Math Help With Multiplying. When it comes to learning multiplying and dividing, a few tricks can make things easier. Learn about tricks to getting the hang of

01:48
How to Multiply Negative Mixed Numerals
/ 277 viewsHow to Multiply Negative Mixed Numerals. Part of the series: Math Help With Multiplying. Multiplying negative mixed numerals quires you to keep a few very important things in mind. Find out how to multiply negative mixed numerals with help from a mathemat

01:43
How to Multiply With Parentheses
/ 50 viewsHow to Multiply With Parentheses. Part of the series: Math Help With Multiplying. Multiplying with parenthesis requires you to do things in a very specific order. Find out about multiplying with parenthesis with help from a mathematics educator in this fr

02:08
Tutorial for Adding & Subtracting Fractions
/ 249 viewsTutorial for Adding & Subtracting Fractions. Part of the series: Adding and Subtracting Fractions. Adding and subtracting fractions is a lot like riding a bike  once you know how, you never forget. Get a tutorial for adding and subtracting fractions with

04:22
How to Determine the Area of a Triangle Based on Coordinates of Its Vertices & Determinants
/ 104 viewsHow to Determine the Area of a Triangle Based on Coordinates of Its Vertices & Determinants. Part of the series: Finding and Using the Area of a Triangle. You can use the coordinates of a triangle's vertices and determines, along with a very specific rule

01:32
How to Solve for the Height of Cylinders
/ 294 viewsHow to Solve for the Height of Cylinders. Part of the series: Algebra Tips. Solving for the height of cylinders can be accomplished in just a few moments with the right equation. Learn how to solve for the height of cylinders with help from an experienced

02:41
How to Substitute Known or Given Values for the Variables in an Algebraic Expression
/ 382 viewsSubstituting known or given values for a variable is required to complete some types of operations. Learn how to substitute known or given values for a variable with help from a mathematics tutor and educator in this free video clip.

01:59
Graphing Inequalities on a Number Line
/ 223 viewsWhen graphing inequalities on a number line, the number line should have 0 in the center and negative numbers on the left side, with positive numbers on the right. Graph inequalities, such as X is greater than 2, with tips from a math teacher in this free

01:42
How To Use Rounding in Math Problems
/ 365 viewsHow To Use Rounding in Math Problems. Part of the series: Math Problems. In certain math problems rounding may actually make finding a solution easier and more clear. Use rounding in math problems with help from a mathematics educator in this free video c

03:04
Steps to Solve Quadradic Equations
/ 237 viewsSteps to Solve Quadradic Equations. Part of the series: Equations. Quadtratic equations can be easily solved by following a straightforward, stepbystep process. Learn the steps to solve quadratic equations with help from a mathematics tutor and educator

02:20
How to Solve Sine & Cosine Equations
/ 312 viewsHow to Solve Sine & Cosine Equations. Part of the series: Equations. Sine and cosine equations need to be solved in a very specific way. Learn how to solve sine and cosine equations with help from an experienced math tutor in this free video clip. Read mo

03:05
Four Steps to Solve a Absolute Value Equation
/ 191 viewsFour Steps to Solve a Absolute Value Equation. Part of the series: Help With Equations. Solving a absolute value equation requires you to complete four distinct steps. Learn the four steps to solve an absolute value equation with help from an experienced

01:46
Easy Way of Learning to Subtract Fractions With Whole Numbers
/ 82 viewsEasy Way of Learning to Subtract Fractions With Whole Numbers. Part of the series: Simple Math. When it comes to subtracting with fractions, you're going to want to keep a few very important things in mind. Find out an easy way of learning subtracting wit

01:41
How to Add and Subtract Mixed Numbers and Show the Work
/ 148 viewsHow to Add and Subtract Mixed Numbers and Show the Work. Part of the series: Adding and Subtracting Fractions. When adding and subtracting mixed numbers it is always important to remember to show your work. Add and subtract mixed numbers and show the work

01:56
How to Do Fractional Coefficients
/ 373 viewsHow to Do Fractional Coefficients. Part of the series: Math Problems. Fractional coefficients need to be completed in a very specific way. Learn how to do fractional coefficients in math problems with help from a mathematics educator in this free video cl

01:34
What Happens When a Fraction Is Multiplied by Its Reciprocal?
/ 204 viewsWhat Happens When a Fraction Is Multiplied by Its Reciprocal?. Part of the series: Math Help With Multiplying. When a fraction is multiplied by its reciprocal a very specific thing occurs. Learn what happens when a fraction is multiplied by its reciprocal

00:57
How Do You Multiply Numbers in Brackets?
/ 268 viewsHow Do You Multiply Numbers in Brackets?. Part of the series: Math Help With Multiplying. Multiplying numbers in brackets requires a very specific procedure. Multiply numbers in brackets with help from a mathematics educator in this free video clip. Read

02:53
Slope Equation for Intersecting Lines
/ 113 viewsSlope Equation for Intersecting Lines. Part of the series: Equations. Intersecting lines can be properly expressed using the correct slope equation. Find out about the slope equation for intersecting lines with help from a mathematics tutor and educator i

02:15
How to Add Square Roots to Numerator Fractions
/ 296 viewsHow to Add Square Roots to Numerator Fractions. Part of the series: Math Problems. Adding square root numerator fractions requires you to keep the terms in the problem separate. Add square root numerator fractions with help from a mathematics educator in

01:14
How to Multiply to Get the Area of a Parallelogram
/ 318 viewsHow to Multiply to Get the Area of a Parallelogram. Part of the series: Perimeter, Area and Decimals. Multiplication is one way you can find the area of a parallelogram pretty easily. Multiply to get the area of a parallelogram with help from a longtime m

02:06
Types of Angles, Figures & Shapes
/ 242 viewsTypes of Angles, Figures & Shapes. Part of the series: Geometry Tips. many different types of angles, figures and shapes make up math in general as well as geometry. Learn about the types of angles, figures and shapes in geometry with help from a longtime

02:17
The Advantages of Using the Least Common Denominator When Adding & Subtracting Denominators
/ 146 viewsThe Advantages of Using the Least Common Denominator When Adding & Subtracting Denominators. Part of the series: Adding and Subtracting Fractions. Using the least common denominator when adding and subtracting fractions certainly has its fair share of adv

11:13
Last Cards Match  Numberphile
/ 102 viewsNumberphile Playing Cards: http://bit.ly/NumberphileCards More card videos: http://bit.ly/Cards_Shuffling More links & stuff in full description below ↓↓↓ Featuring Tadashi Tokieda, a professor of mathematics at Stanford University. More Tadashi Videos: h

05:35
Balls and Cones  Numberphile
/ 217 viewsThis is a (standalone) continuation of the previous video at: https://youtu.be/2vnqSwWAn34 Featuring Tadashi Tokieda. More links & stuff in full description below ↓↓↓ More Tadashi: http://bit.ly/tadashi_vids Playing cards latest: http://www.bradyharanblo

16:26
Earthquakes, Circles and Spheres  Numberphile
/ 100 viewsTadashi is back with a discussion of how we know where earthquakes occur. A second video is at: https://youtu.be/lubGnk0UZt0 More links & stuff in full description below ↓↓↓ More Tadashi Tokieda at: http://bit.ly/tadashi_vids Podcasts HELLO INTERNET http:

16:19
The Cross Ratio  Numberphile
/ 147 viewsOne of the most famous free kicks ever taken  but how far from the goal was Brazil's Roberto Carlos? More links & stuff in full description below ↓↓↓ Discussed by Federico Ardila from San Francisco State University. More Federico videos: http://bit.ly/Fe

04:36
How to make a Klein Bottle from an old pair of jeans  Numberphile
/ 259 viewsMore Klein bottle videos: http://bit.ly/KleinBottles More links & stuff in full description below ↓↓↓ Visit Cliff Stoll's online store: http://www.kleinbottle.com/ More Cliff videos: http://bit.ly/Cliff_Videos Numberphile is supported by the Mathematical

11:37
Floating Balls and Lift  Numberphile
/ 382 viewsTadashi discusses pressure and lift... with a toy of course! More links & stuff in full description below ↓↓↓ Lift and wings on Sixty Symbols: https://youtu.be/PF22LM8AbII Tadashi Playlist: http://bit.ly/tadashi_vids You can buy version of this toy on Ama

10:51
Math Antics  Intro to the Metric System
/ 361 viewsLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

03:21
Can You Solve A Puzzle That Fooled Richard Feynman?
/ 153 viewsWhat 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"
/ 74 viewsThanks 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

05:52
Can You Solve The "MEANEST" SAT Test Question Ever?
/ 207 viewsOn 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

09:15
5Sided Square  Numberphile
/ 209 viewsCheck our sponsor The Great Courses Plus (free trial): http://ow.ly/j5cB30hIvm2 This video features Cliff Stoll. More links & stuff in full description below ↓↓↓ More Cliff Stoll videos: http://bit.ly/Cliff_Videos Buy a Klein Bottle fro

08:15
The Mathematics of Locomotion  Christmas Lectures with Ian Stewart
/ 91 viewsThe scof all living things is governed by nerve impulses that follow a pattern of travelling waves. This is true for the trot of a horse, the tripod gait of an ant, the undulating movement of the millipede and even the slither of a snake. Subscribe for re

05:13
Can you solve the rogue AI riddle?  Dan Finkel
/ 232 viewsPractice more problemsolving at https://brilliant.org/TedEd/ If you sign up for a FREE membership using the link above, Brilliant will email you the solution to the BONUS RIDDLE. A hostile artificial intelligence called NIM has taken over the world’s com

11:50
The Golden Angle  Christmas Lectures with Ian Stewart
/ 118 viewsThr golden angle is a mathematical concept, closely related to the golden ratio and Fibonacci numbers. Where can you find it and how is it formed? Subscribe for regular science videos: http://bit.ly/RiSubscRibe Watch the full lecture: http://www.rigb.org/

05:51
The Mathematics of Walking and Gait  Christmas Lectures with Philip Morrison
/ 90 viewsJust like the extent of the swing of a pendulum is proportional to the length of the pendulum, the pace of an animal walking is proportional to the length of the leg of the animal. Subscribe for regular science videos: http://bit.ly/RiSubscRibe Watch the

10:12
21card trick  Numberphile
/ 184 viewsA simple trick with some neat math behind it. More on Numberphile cards at: http://www.bradyharanblog.com/numberphileplayingcards More links & stuff in full description below ↓↓↓ More cards video: http://bit.ly/Cards_Shuffling This vi

04:40
How exactly does binary code work?  José Américo N L F de Freitas
/ 174 viewsCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/howexactlydoesbinarycodeworkjoseamericonlffreitas Imagine trying to use words to describe every scene in a film, every note in a song, or eve
Featured 
05:53
Are We Breathing Caesar's Last Breath
/ 103 viewsSubmit your vote for America’s favorite novel! https://to.pbs.org/2Jes2X5 Are you breathing air molecules that were once exhaled by Caesar, Joan of Arc, or Madame Curie? And why did Albert Einstein try to break into the refrigerator business? We talked to

06:59
Can animals predict the future? Meet Barry the Psychic Labrador!
/ 81 viewsBarry the Psychic Labrador has predicted an England win: https://psychicpets.com/pets/232 Lilo the Psychic Basset Hound has predicted a Sweden win: https://psychicpets.com/pets/1246 This video was uploaded before the World Cup quarterfinal: England vs

10:22
Why do whole oranges float, but peeled oranges sink?
/ 81 viewsGo check out the courses on Brilliant! https://brilliant.org/standupmaths Be one of the first n people (for n = 200) to signup for a free Brilliant account and get 20% off if you upgrade to paid membership. Here is the original QI tweet: "A whole orange

06:01
How many different World Cup results can a team have?
/ 138 viewsRegister your pet at Psychic Pets and start predicting the World Cup games! http://psychicpets.com/ You can also donate money to help keep the Psychic Pet servers running! Via PayPal: https://www.paypal.com/cgibin/webscr?cmd=_sxclick&hosted_button_id=M

03:22
The Rug Puzzle: how many triangles?
/ 119 viewsThis video sponsored by ME. I mean: MATHS GEAR. Buy my book. https://mathsgear.co.uk/collections/books/products/signedpaperbackthingstomakeanddointhefourthdimension My original tweet that started the puzzle! https://twitter.com/standupmaths/stat

04:46
Can you solve the Mondrian squares riddle?  Gordon Hamilton
/ 144 viewsPractice more problemsolving at https://brilliant.org/TedEd/ Dutch artist Piet Mondrian’s abstract, rectangular paintings inspired mathematicians to create a twofold challenge. Can you solve the puzzle and get to the lowest score possible? Gordon

09:09
The Illumination Problem  Numberphile
/ 192 viewsFeaturing Professor Howard Masur from the University of Chicago. Filmed at the Mathematical Sciences Research Institute (MSRI). Part 2 of this interview: https://youtu.be/AGX0cLbHaog Patreon: http://www.patreon.com/numberphile Numberphile is supported by

08:39
Frog Jumping  Numberphile
/ 115 viewsFeaturing Gordon Hamilton from Math Pickle. More links below. Numberphile TShirts: https://teespring.com/stores/numberphile Gordon and the Mondrian Art Problem: https://youtu.be/49KvZrioFB0 Math Pickle (Gordon's website): http://mathpickle.com Numberphil

08:45
The Legend of Question Six  Numberphile
/ 70 viewsFree trial at Great Courses Plus: http://ow.ly/7Hh2302dIFt More links & stuff in full description below ↓↓↓ Simon Pampena discusses the famous Question 6 from the 1988 International Mathematical Olympiad. More links below... Second part of this video: htt

04:19
Lace Knot Trick  Numberphile
/ 76 viewsPlaylist of Tadashi Tokieda videos: http://bit.ly/tadashi_vids More links & stuff in full description below ↓↓↓ More knot videos: http://bit.ly/KnotaPhile Fast shoelaces: https://youtu.be/XPIgR89jv3Q What is a knot?: https://youtu.be/aqyyhhnGraw Support

11:13
Coffee Cup Vibrations  Numberphile
/ 232 viewsTadashi explores coffee and tea cups to new depths... More links & stuff in full description below ↓↓↓ Playlist of Tadashi Tokieda videos: http://bit.ly/tadashi_vids Support us on Patreon: http://www.patreon.com/numberphile NUMBERPHILE Website: http://www

07:04
The Secret of Floppy Paper  Numberphile
/ 68 viewsTadashi is back, this time looking at drooping paper (and toilet paper). More links & stuff in full description below ↓↓↓ Subscribe to Numberphile and never miss a floppy paper video: http://bit.ly/Numberphile_Sub Playlist of Tadashi Tokieda videos: http:

06:34
The Most Powerful Dice  Numberphile
/ 111 viewsTadashi explores a special set of dice... And has a powerful lesson. More links & stuff in full description below ↓↓↓ Subscribe to Numberphile: http://bit.ly/Numberphile_Sub More dice videos: http://bit.ly/Dice_Videos Playlist of Tadashi Tokieda videos: h

05:56
A Strange Change of Rotation  Numberphile
/ 147 viewsRotating cedar balls. Here's a playlist of Tadashi Tokieda videos: http://bit.ly/tadashi_vids More links & stuff in full description below ↓↓↓ Electric slide rule: https://youtu.be/MEyIppEOQTw Support us on Patreon: http://www.patreon.com/numberphile NUMB

07:52
UNCRACKABLE? The Collatz Conjecture  Numberphile
/ 118 viewsProfessor David Eisenbud on the infamous Collatz Conjecture, a simple problem that mathematicians may not be "ready" to crack. More links & stuff in full description below ↓↓↓ Extra footage from this interview: https://youtu.be/O2_h3z1YgEU Prof Eisenbud's

08:50
The Electric Slide Rule  Numberphile
/ 215 viewsCliff Stoll shows off an electricpowered slide rule. More links & stuff in full description below ↓↓↓ Audible (free trial): http://www.audible.com/numberphile (sponsor) Cliff's Klein Bottle business: http://www.kleinbottle.com More videos with Cliff: htt

02:41
Paper Calculator  Numberphile
/ 108 viewsComic book genius Jason Shiga shows us a calculator made of paper. We've got more coming from Jason which will explain WHY he made this (besides the fact it is just cool!) More links & stuff in full description below ↓↓↓ Jason's acclaimed book Meanwhile:

16:12
Stars and Bars (and bagels)  Numberphile
/ 61 viewsProfessor Ken Ribet discusses a mathematical problem involving bagels  and some clever combinatorics. More links & stuff in full description below ↓↓↓ With thanks to these Patreon supporters: Jeff Straathof Peggy Youell Ken Baron Today I Found Out Christ

10:05
The Slightly Spooky Recamán Sequence  Numberphile
/ 146 viewsCheck out Brilliant (and get 20% off their premium service): https://brilliant.org/numberphile (sponsor)... More links & stuff in full description below ↓↓↓ Check out Brilliant's Problem of the Week (it's free): https://brilliant.org/NumberphilePOTW/ Alex

09:03
Weber's Law  Numberphile
/ 122 viewsCheck out Brilliant (and get 20% off) by clicking https://brilliant.org/numberphile (sponsor) Hannah Fry has a new book coming: https://amzn.to/2J6oCph (US) or https://amzn.to/2KVfXDD (UK) More links & stuff in full description below ↓↓↓ A little extra bi

22:11
gconjecture  Numberphile
/ 67 viewsDiscussing hvectors and the gconjecture. Featuring June Huh from the Institute for Advanced Study at Princeton University. More links & stuff in full description below ↓↓↓ A little extra bit from this interview: https://youtu.be/cFKGX3vAs_Q Shapes in hi

08:45
Conway Checkers  Numberphile
/ 188 viewsContinues with the proof at: https://youtu.be/Or0uWM9bT5w Featuring Zvezdelina Stankova  more videos with her at: http://bit.ly/zvezda_videos More links & stuff in full description below ↓↓↓ John Conway videos: http://bit.ly/ConwayNumberphile Pebbling a

10:48
Apéry's constant (calculated with Twitter)  Numberphile
/ 77 viewsPatreon: http://www.patreon.com/numberphile More links & stuff in full description below ↓↓↓ Tony Padilla is an associate professor of physics at the University of Nottingham. Here he discusses the zeta function and Apéry's Constant. More Tony videos: htt

12:18
Lorentz Transformations  Special Relativity Ch. 3
/ 76 viewsGo to http://brilliant.org/MinutePhysics for 20% off a premium subscription to Brilliant! Mark Rober's youtube channel: https://www.youtube.com/markrober The previous videos in this series: Chapter 1: Why Relativity is Hard https://www.youtube.com/watch?v

05:20
Can you solve the giant cat army riddle?  Dan Finkel
/ 140 viewsPractice more problemsolving at https://brilliant.org/TedEd/ Sign up to be emailed the solution to the bonus riddle: https://brilliant.org/tededm2s3/ The villainous Dr. Schrödinger has developed a growth ray and intends to create an army of giant cats to

06:13
Calculating the circumference of the Earth in 200 BC
/ 91 viewsIn 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

02:43
The Man Teaching Math Lessons in the Sky
/ 67 viewsWinfred Randolph Lowe, aka, “Randy the Kite Man,” is a retired math teacher taking geometry to new heights. For the past 20 years, Winfred has spent his free time flying kites. Now he’s combining his two favorite pastimes to teach the fundamentals of geom

11:34
Math Antics  Basic Probability
/ 102 viewsLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

11:11
THAT IS HOW YOU CAN CONFUSE YOUR MATH TEACHER AT SCHOOL
/ 121 viewsLearn how to draw prospective without a ruler, measure angles and figure out how many days there are in any given month with your hand! These and many others mindblowing Math tricks are in this video! There are some GREAT tricks for young mathematicians!

07:18
9 SPEEDY MATH TRICKS FOR SCHOOL
/ 104 viewsIf you have issues with math, it’s not really your fault. The problem is that nobody taught you the most useful math tricks in school. But here they are! No calculators, just your hands and some simple tricks  watch and learn! 

05:26
Can you solve the wizard standoff riddle?  Dan Finkel
/ 233 viewsPractice more problemsolving at https://brilliant.org/TedEd/ Sign up for free to receive the solution to the bonus riddle! You’ve been chosen as a champion to represent your wizarding house in a deadly duel against two rival magic schools. Your opponents

11:22
The Problem with 7825  Numberphile
/ 67 viewsSignup for your free trial to The Great Courses Plus here: http://ow.ly/b5wA30hIviV (sponsor) More links & stuff in full description below ↓↓↓ James Grime on a proof involving Pythagorean Triples. James Grime: http://singingbanana.com (book him for a talk

16:21
The Silver Ratio  Numberphile
/ 71 viewsThe silver ratio (and other metals) with Tony Padilla. More links & stuff in full description below ↓↓↓ Golden editions are sold out (for now) but more shirts available at https://teespring.com/stores/numberphile More Tony Padilla videos: http://bit.ly/Pa

12:29
Combinatorics and Higher Dimensions  Numberphile
/ 78 viewsFeaturing Federico Ardila from San Francisco State University  filmed at MSRI. More links & stuff in full description below ↓↓↓ Federico previously on Numberphile: https://www.youtu.be/OfEv5ZdSrhY Federico's webpage: http://math.sfsu.edu/federico/ Antarc

03:49
The Trinity Hall Prime  Numberphile
/ 62 viewsA prime number "gift" from a mathematicians leaving his college. More links & stuff in full description below ↓↓↓ Featuring Tadashi Tokieda. More Tadashi: http://bit.ly/tadashi_vids Professor McKee explains: "Most of the digits of p were fixed so that: (i

02:04
NonEuclidean Geometry of a Sphere  Christmas Lectures with Philip Morrison
/ 83 viewsAccording to Euclidean geometry the angles of a triangle add up to 180 degrees. Philip Morrison shows an example of where this isn't true, and nonEuclidean geometry applies. Watch the full lecture: http://www.rigb.org/christmaslectures/watch/1968/gulliv

04:56
How Pi was nearly changed to 3.2  Numberphile
/ 101 viewsThe State of Indiana nearly passed a law which would have made Pi equal 3.2  strange but true. More links & stuff in full description below ↓↓↓ More Pi videos from Numberphile: http://bit.ly/W4oDN1 This video features Dr James Grime 

05:43
How to order 43 Chicken McNuggets  Numberphile
/ 91 viewsWe're exploring the world of Chicken Nuggets and Frobenius numbers. 43 has long been a special number in the world of McNugget mathematics, but 11 is also important! More links & stuff in full description below ↓↓↓ This video features D

02:36
The Law All Languages Obey
/ 89 viewsCan a mathematical formula prove that dolphins have language like we do? "NOVA Wonders: What Are Animals Saying?" premieres April 25, 2018 at 9/8c on PBS NOVA on Facebook: https://www.facebook.com/NOVAonline NOVA on Twitter: @novapbs NOVA on Instagram: @n

04:13
What is a PValue and Why Does it Matter?
/ 88 viewsScience's most important (and controversial) number has its origins in a British experiment involving milk and tea. NOVA on Facebook: https://www.facebook.com/NOVAonline NOVA on Twitter: @novapbs NOVA on Instagram: @novapbs PRODUCTION CREDITS Digital Prod

04:12
What is Zeno's Dichotomy Paradox?  Colm Kelleher
/ 89 viewsView full lesson: http://ed.ted.com/lessons/whatiszenosdichotomyparadoxcolmkelleher Can you ever travel from one place to another? Ancient Greek philosopher Zeno of Elea gave a convincing argument that all motion is impossible  but where's the fla

13:55
18 MATH RIDDLES THAT EVEN YOUR MATH TEACHER WILL FAIL
/ 345 viewsA great chance to challenge your math teacher! These 18 math riddles will trick and will make sweat even your math teacher: 00:14  Easy riddle to warm you up for the main brain workout. Kids solve this in seconds! 00:46  Riddle to test your ability to t
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03:23
Galton Board
/ 106 viewsThe Galton Board is a 7.5” by 4.5” desktop probability machine. This device brings to life the statistical concept of normal distribution. As you rotate the Galton Board on its axis, you set into motion a flow of steel beads that bounce with e

15:13
The Golden Ratio (why it is so irrational)  Numberphile
/ 82 viewsCheck out Brilliant (and get 20% off) by clicking https://brilliant.org/numberphile Featuring Ben Sparks  More links & stuff in full description below ↓↓↓ Golden seeds limited edition TShirt: https://teespring.com/NPSeeds More Golden Ratio stuff: htt

14:31
BEST Guess Who Strategy 96% WIN record using MATH
/ 84 viewsHere is a strategy for winning 96% of your competitive Guess Who games. Now all you need is a time machine to return to 1991 and CRUSH Jeff Lee in the 5th grade Guess Who Championships. FREE trial for Lynda.com http://bit.ly/LyndaMarkRober MUSIC 0:21 M

05:20
Can you solve the false positive riddle?  Alex Gendler
/ 143 viewsPractice more problemsolving at https://brilliant.org/TedEd/ Solution to the bonus riddle mentioned at the end: https://brilliant.org/tededprobabilitypairs/ Mining unobtainium is hard work – the rare mineral appears in only 1% of rocks in the mine. But y

05:04
The Coin Hexagon  Numberphile
/ 78 viewsFeaturing Alex Bellos. See the accompanying Dudeney Pentominoes video: https://youtu.be/wZ1E_CM7MqA More links & stuff in full description below ↓↓↓ More Alex Bellos videos: http://bit.ly/Bellos_Playlist Coin playlist: http://bit.ly/coins_videos Box of Pu

06:18
The Pentomino Puzzle (and Tetris)  Numberphile
/ 116 viewsFeaturing Alex Bellos on Polyominoes. See the accompanying coin hexagon video: https://youtu.be/_pP_C7HEy3g More links & stuff in full description below ↓↓↓ More Alex Bellos videos: http://bit.ly/Bellos_Playlist Related Bellos books on Amazon... US links

17:32
The Math (and money) of Soccer Stickers  Numberphile
/ 90 viewsCheck out Brilliant (and get 20% off) by clicking https://brilliant.org/numberphile Featuring Federico Ardila  More links & stuff in full description below ↓↓↓ Extra footage (the 'beautiful math' bit): https://youtu.be/iMSitUaoS3I Extra footage (some f

19:48
Is the "hot hand" real?  Numberphile
/ 100 viewsNew research sheds light on the socalled Hot Hand Fallacy. Featuring Professor Lisa Goldberg. More links & stuff in full description below ↓↓↓ A bit extra from this interview: https://youtu.be/BvG35txQkD0 More with Professor Goldberg: http://bit.ly/LisaG