Math

06:02 New
The Perfect Stack of Maltesers

4 hours ago / 3 views

Dr 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 New
Will You Survive the Zombie Apocalypse?! | NUMBER CRUSHERS

3 days ago / 11 views

Will You Survive the Zombie Apocalypse?! Math-Wiz 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 New
Can you solve the multiplying rabbits riddle? - Alex Gendler

6 days ago / 15 views

Sign up for our newsletter and never miss an animation: http://bit.ly/TEDEdNewsletter View full lesson: https://ed.ted.com/lessons/can-you-solve-the-multiplying-rabbits-riddle-alex-gendler After years of experiments, you’ve finally created the pets of the
02:59
The Belousov-Zhabotinsky Reaction - Christmas Lectures with Ian Stewart

3 weeks ago / 15 views

Ian Stewart demonstrates the classic oscillating BZ reaction as an example of symmetry breaking or non-equilibrium thermodynamics. Subscribe for regular science videos: http://bit.ly/RiSubscRibe Watch the full lecture: http://www.rigb.org/christmas-lectur
08:01
Surface Area to Volume Ratios - Christmas Lectures with Philip Morrison

3 weeks ago / 16 views

The 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/christmas-lectu
18:05
This is what an 1869 MIT entrance exam looks like

3 weeks ago / 26 views

Explore 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

3 weeks ago / 20 views

CuriosityStream: 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

3 weeks ago / 21 views

Start 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 ?

1 month ago / 23 views

An 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

1 month ago / 45 views

Get 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

1 month ago / 32 views

Practice more problem-solving 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

1 month ago / 20 views

Featuring 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

1 month ago / 28 views

Belphegor's Prime... Don't miss the extra footage on Numberphile2: https://youtu.be/9CcI5M1LfRs Belphegor Merch: http://www.bradyharanblog.com/blog/belphegors-prime-t-shirt More links & stuff in full description below ↓↓↓ This video features Professor Ton
13:48
Squaring Primes - Numberphile

1 month ago / 24 views

Matt 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

1 month ago / 15 views

Maybe 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/ydn7s9-3GRc Neil Sloane is the founder of
09:18
The Centrifuge Problem - Numberphile

1 month ago / 21 views

More 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

1 month ago / 22 views

AKA "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

1 month ago / 67 views

Practice more problem-solving 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

2 months ago / 35 views

Watch more Basic Math Skills videos: http://www.howcast.com/videos/262765-How-to-Divide-Fractions 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

2 months ago / 33 views

INCREDIBLY 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

2 months ago / 144 views

Practice more problem-solving 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

2 months ago / 42 views

Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-fascinating-history-of-cemeteries-keith-eggener 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

2 months ago / 105 views

Practice more problem-solving 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 robo-ants riddle? - Dan Finkel

3 months ago / 118 views

Practice more problem-solving at https://brilliant.org/TedEd/ Solution to Bonus Riddle: https://brilliant.org/TedEdRoboAnts/ The good news is that your experimental robo-ants are a success. The bad news is that you accidentally gave them the ability to sh
10:56
Kissing Numbers - Numberphile

3 months ago / 44 views

Featuring 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

3 months ago / 36 views

Featuring 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

3 months ago / 39 views

Featuring 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?

3 months ago / 42 views

Start 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 4-digit pin code are 1 in 10,000, not 1 in 1,000. Ig
1:01:57
100 EPIC SCHOOL HACKS YOU SHOULD KNOW

3 months ago / 57 views

Do you love school? I surely did! Whatever your answer is, the coming Live stream will be dedicated to hacks to make your school-time easier and more pleasant! Join Live chat! Subscribe to 5-Minute MAGIC: http://bit.ly/2ldditZ 5-Minute Crafts: https://www
16:34
18 EASY WAYS TO TEACH MATH TO CHILDREN

3 months ago / 20 views

TEACHING 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?

3 months ago / 69 views

We 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

3 months ago / 218 views

In 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

3 months ago / 69 views

Practice more problem-solving 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

3 months ago / 36 views

Matrix multiplication and linear algebra explained with 3D animations.
01:46 $Visualizing division by fractions$
Visualizing division by fractions

3 months ago / 152 views

3D animation giving an intuitive understanding of what it means to divide by a fraction.
Featured
07:34
Vector Forces

3 months ago / 28 views

Easy to understand 3D animations explaining force vectors.
07:15
Product Rule for derivatives: Visualized with 3D animations

3 months ago / 46 views

Visual representation of the product rule for derivatives in Calculus.
08:23
Polynomial derivatives: 3D visualization

3 months ago / 36 views

How to visualize the derivatives of polynomials.
16:29
Trigonometry - Easy to understand 3D animation

3 months ago / 37 views

IMPORTANT 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

3 months ago / 35 views

Easy to understand explanation of integrals and derivatives using 3D animations.
40:00
Algebra and Mathematics. Explained with easy to understand 3D animations.

3 months ago / 38 views

Explains 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

3 months ago / 32 views

How to draw 4, 5, 6, and 7 dimensional objects.
19:56
Laplace Transform Explained and Visualized Intuitively

3 months ago / 41 views

Laplace 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

3 months ago / 30 views

Introduction 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

3 months ago / 33 views

3D 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

3 months ago / 30 views

Quantum 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

3 months ago / 36 views

Double 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

3 months ago / 25 views

3D visualization of partial derivatives and gradient vectors. My Patreon account is at https://www.patreon.com/EugeneK
25:33
Divergence and Curl

3 months ago / 27 views

Visualization 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.

3 months ago / 43 views

Visualization 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

3 months ago / 31 views

The 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

3 months ago / 33 views

Fourier Series and Fourier Transform with easy to understand 3D animations.
04:47
Puzzles: 5 "easy"... and one impossible!! (with answers)

4 months ago / 75 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)

4 months ago / 67 views

Most 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)

4 months ago / 111 views

These 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 no-one 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

4 months ago / 90 views

Practice more problem-solving 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

4 months ago / 43 views

Using 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

4 months ago / 38 views

Ian 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

4 months ago / 152 views

Researchers 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 $What is a fractal? A lens to infinity$
What is a fractal? A lens to infinity

4 months ago / 152 views

A 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

4 months ago / 256 views

If you solve this puzzle before the answer is given, you are the top-dog 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
Left-Facing Fish

4 months ago / 255 views

Deane and Rob present a matchstick problem concerning left-facing and right-facing 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

4 months ago / 151 views

Deane 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

4 months ago / 115 views

Deane 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

4 months ago / 78 views

It'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

4 months ago / 252 views

Deane 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

4 months ago / 109 views

Cutting 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

4 months ago / 256 views

Deane 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
Magically-Linked Donuts

4 months ago / 51 views

Deane 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

4 months ago / 168 views

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
08:51
The Viral Balloon Puzzle - The REAL Answer Explained (Using Ph.D. Level Math)

4 months ago / 146 views

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
07:52
What Does a 4D Ball Look Like in Real Life? Amazing Experiment Shows Spherical Version of Tesseract

4 months ago / 248 views

Follow 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

4 months ago / 227 views

Practice more problem-solving 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

4 months ago / 220 views

The 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

5 months ago / 236 views

For Pi Day 2018 I calculated π by hand using the Chudnovsky algorithm. https://en.wikipedia.org/wiki/Chudnovsky_algorithm k = 0 42698672/13591409 = 3.141592|751... k = 0 and k = 1 42698670.666333435968/13591408.9999997446 = 3.14159265358979|619... Watch m
14:53
How thick is a three-sided coin?

5 months ago / 204 views

Go 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 three-sided coin! The bonus
14:53
THE SCUTOID: did scientists discover a new shape?

5 months ago / 98 views

Read the Nature paper for yourself: "Scutoids are a geometrical solution to three-dimensional packing of epithelia" https://www.nature.com/articles/s41467-018-05376-1 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

5 months ago / 224 views

I 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

5 months ago / 352 views

Tricks 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

5 months ago / 255 views

How 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

5 months ago / 36 views

How 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

5 months ago / 226 views

Tutorial 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

5 months ago / 86 views

How 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

5 months ago / 276 views

How 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

5 months ago / 366 views

Substituting 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

5 months ago / 205 views

When 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

5 months ago / 341 views

How 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

5 months ago / 221 views

Steps to Solve Quadradic Equations. Part of the series: Equations. Quadtratic equations can be easily solved by following a straightforward, step-by-step process. Learn the steps to solve quadratic equations with help from a mathematics tutor and educator
02:20
How to Solve Sine & Cosine Equations

5 months ago / 297 views

How 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

5 months ago / 174 views

Four 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

5 months ago / 55 views

Easy 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

5 months ago / 127 views

How 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

5 months ago / 355 views

How 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?

5 months ago / 186 views

What 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?

5 months ago / 244 views

How 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

5 months ago / 97 views

Slope 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

5 months ago / 281 views

How 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

5 months ago / 303 views

How 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

5 months ago / 227 views

Types 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

5 months ago / 129 views

The 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

5 months ago / 86 views

Numberphile 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

5 months ago / 203 views

This is a (stand-alone) 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

5 months ago / 81 views

Tadashi 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

5 months ago / 132 views

One 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

5 months ago / 244 views

More 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

5 months ago / 363 views

Tadashi 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

5 months ago / 318 views

Learn 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?

5 months ago / 137 views

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"

5 months ago / 58 views

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

5 months ago / 191 views

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
09:15
5-Sided Square - Numberphile

5 months ago / 194 views

Check 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
04:24
3D Shapes Song For Kids: 3-Dimensional Shapes for Kindergarten, 1st Grade, and 2nd Grade

5 months ago / 66 views
08:15
The Mathematics of Locomotion - Christmas Lectures with Ian Stewart

5 months ago / 73 views

The 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

5 months ago / 212 views

Practice more problem-solving 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

5 months ago / 99 views

Thr 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

6 months ago / 75 views

Just 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
21-card trick - Numberphile

6 months ago / 158 views

A simple trick with some neat math behind it. More on Numberphile cards at: http://www.bradyharanblog.com/numberphile-playing-cards 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

6 months ago / 149 views

Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-exactly-does-binary-code-work-jose-americo-n-l-f-freitas Imagine trying to use words to describe every scene in a film, every note in a song, or eve
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05:53
Are We Breathing Caesar's Last Breath

6 months ago / 86 views

Submit 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!

6 months ago / 67 views

Barry the Psychic Labrador has predicted an England win: https://psychic-pets.com/pets/232 Lilo the Psychic Basset Hound has predicted a Sweden win: https://psychic-pets.com/pets/1246 This video was uploaded before the World Cup quarter-final: England vs
10:22
Why do whole oranges float, but peeled oranges sink?

6 months ago / 61 views

Go check out the courses on Brilliant! https://brilliant.org/standupmaths Be one of the first n people (for n = 200) to sign-up 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?

6 months ago / 123 views

Register your pet at Psychic Pets and start predicting the World Cup games! http://psychic-pets.com/ You can also donate money to help keep the Psychic Pet servers running! Via PayPal: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=M
03:22
The Rug Puzzle: how many triangles?

6 months ago / 105 views

This video sponsored by ME. I mean: MATHS GEAR. Buy my book. https://mathsgear.co.uk/collections/books/products/signed-paperback-things-to-make-and-do-in-the-fourth-dimension My original tweet that started the puzzle! https://twitter.com/standupmaths/stat
04:46
Can you solve the Mondrian squares riddle? - Gordon Hamilton

6 months ago / 125 views

Practice more problem-solving at https://brilliant.org/TedEd/ Dutch artist Piet Mondrian’s abstract, rectangular paintings inspired mathematicians to create a two-fold challenge. Can you solve the puzzle and get to the lowest score possible? Gordon
09:09
The Illumination Problem - Numberphile

7 months ago / 181 views

Featuring 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

7 months ago / 98 views

Featuring Gordon Hamilton from Math Pickle. More links below. Numberphile T-Shirts: 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

7 months ago / 58 views

Free 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

7 months ago / 55 views

Playlist of Tadashi Tokieda videos: http://bit.ly/tadashi_vids More links & stuff in full description below ↓↓↓ More knot videos: http://bit.ly/Knot-a-Phile Fast shoelaces: https://youtu.be/XPIgR89jv3Q What is a knot?: https://youtu.be/aqyyhhnGraw Support
11:13
Coffee Cup Vibrations - Numberphile

7 months ago / 219 views

Tadashi 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

7 months ago / 55 views

Tadashi 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

7 months ago / 95 views

Tadashi 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

7 months ago / 128 views

Rotating 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

7 months ago / 101 views

Professor 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

7 months ago / 197 views

Cliff Stoll shows off an electric-powered 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

7 months ago / 89 views

Comic 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

7 months ago / 49 views

Professor 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

7 months ago / 128 views

Check 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

7 months ago / 111 views

Check 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
g-conjecture - Numberphile

7 months ago / 52 views

Discussing h-vectors and the g-conjecture. 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

7 months ago / 174 views

Continues 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

7 months ago / 61 views

Patreon: 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

7 months ago / 59 views

Go 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

7 months ago / 119 views

Practice more problem-solving 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

7 months ago / 75 views

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
02:43
The Man Teaching Math Lessons in the Sky

7 months ago / 57 views

Winfred 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

7 months ago / 77 views

Learn 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

7 months ago / 89 views

Learn 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 mind-blowing Math tricks are in this video! There are some GREAT tricks for young mathematicians!
07:18
9 SPEEDY MATH TRICKS FOR SCHOOL

7 months ago / 86 views

If 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

8 months ago / 199 views

Practice more problem-solving 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

8 months ago / 55 views

Signup 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

8 months ago / 60 views

The 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

8 months ago / 64 views

Featuring 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

8 months ago / 49 views

A 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
Non-Euclidean Geometry of a Sphere - Christmas Lectures with Philip Morrison

8 months ago / 66 views

According 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 non-Euclidean geometry applies. Watch the full lecture: http://www.rigb.org/christmas-lectures/watch/1968/gulliv
04:56
How Pi was nearly changed to 3.2 - Numberphile

8 months ago / 83 views

The 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

8 months ago / 77 views

We'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

8 months ago / 70 views

Can 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 P-Value and Why Does it Matter?

8 months ago / 72 views

Science'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

8 months ago / 73 views

View full lesson: http://ed.ted.com/lessons/what-is-zeno-s-dichotomy-paradox-colm-kelleher 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

8 months ago / 305 views

A 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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13:43
17 FUN LOGICAL RIDDLES AND MATH TRICKS TO IMPRESS YOUR TEACHER

8 months ago / 185 views

Simple and logical riddles for kids that will test the sharpness of your brain and awesome math tricks that will impress and embarrass your math teacher: 00:14 - Cool riddles for kids and adults to warm up you for the main brain workout. 01:35 - Tricky te
03:23
Galton Board

8 months ago / 87 views

The 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

8 months ago / 70 views

Check 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 T-Shirt: https://teespring.com/NP-Seeds More Golden Ratio stuff: htt
14:31
BEST Guess Who Strategy- 96% WIN record using MATH

8 months ago / 69 views

Here 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

8 months ago / 125 views

Practice more problem-solving 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

8 months ago / 65 views

Featuring 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

8 months ago / 97 views

Featuring 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

8 months ago / 72 views

Check 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

8 months ago / 83 views

New research sheds light on the so-called 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
12:07
3D objects create impossible scenes

8 months ago / 125 views

Impossible Objects 10 "Topology-Disturbing Objects" by Kokichi Sugihara 2016
04:51
Why can't you divide by zero? - TED-Ed

9 months ago / 185 views

Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/why-can-t-you-divide-by-zero In the world of math, many strange results are possible when we change the rules. But there’s one rule that most of us have
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02:59
Proof that 1 = 2.

9 months ago / 88 views

Using algebra and a little deception, Mr. John Hush proves (or does he?) that 1 = 2 to a class of amazed calculus students.
05:40
How to find a square root

9 months ago / 106 views

Here is the original π video: https://www.youtube.com/watch?v=LhlqCJjbEa0 Watch the long version of the extra working out here: https://www.youtube.com/watch?v=I7YvD7dqsy8 My calculation gave the square root of 10,005 to be 100.02499687578103 Compared to
13:54
16 Math Riddles And Logic Puzzles That Will Crack Your Mind Wide Open

10 months ago / 312 views

These math riddles and logic puzzles will either crack your mind wide open or will boost your IQ! (Hopefully, the latter) 00:14 - Just a nice warm-up before the main brain workout! To crack this easy riddle you need to pay attention to every item on the t
05:03
Can you solve the buried treasure riddle? - Daniel Griller

10 months ago / 162 views

Practice more problem-solving at https://brilliant.org/TEDEd/ View full lesson: https://ed.ted.com/lessons/can-you-solve-the-buried-treasure-riddle-daniel-griller After a massive storm tears through the Hex Archipelago, you find five grizzled survivors in
06:40
Number Sticks - Numberphile

10 months ago / 99 views

Katie Steckles dazzles us with Mental Logs. Have a look at Brilliant (and get 20% off) here: https://brilliant.org/Numberphile More links & stuff in full description below ↓↓↓ More Katie on Numberphile: http://bit.ly/Steckles_Playlist Katie Steckles: http
03:24
Round Peg in a Square Hole - Numberphile

10 months ago / 95 views

Featuring Tadashi Tokieda - more Tadashi videos at: http://bit.ly/tadashi_vids More links & stuff in full description below ↓↓↓ Tadashi Tokieda is a Professor of Mathematics at Stanford University (though this was filmed when he was at Cambridge, in the U
08:06
Catalan's Conjecture - Numberphile

10 months ago / 100 views

With Dr Holly Krieger from Murray Edwards College, University of Cambridge. Have a look at Brilliant (and get 20% off) here: https://brilliant.org/Numberphile More links & stuff in full description below ↓↓↓ More Numberphile videos with Dr Krieger: http:/
09:06
Superpermutations - Numberphile

10 months ago / 109 views

The Great Courses Plus (free trial): http://ow.ly/C3FE30hIvhc This video features Dr James Grime. More links & stuff in full description below ↓↓↓ More James Grime on Numberphile: http://bit.ly/grimevideos James Grime: http://singingbanana.com Tackling th
14:03
Tree Gaps and Orchard Problems - Numberphile

10 months ago / 93 views

Get 10% off at Squarespace: https://www.squarespace.com/numberphile This feature features Ben Sparks... More links & stuff in full description below ↓↓↓ Ben Sparks Twitter: https://twitter.com/SparksMaths More of Ben on Numberphile: https://youtu.be/ETrYE
22:32
Cannons and Sparrows - Numberphile

10 months ago / 84 views

Featuring Professor Günter Ziegler, who was visiting at MSRI. Extra footage at: https://youtu.be/FHkaN9FOzUY More links & stuff in full description below ↓↓↓ This video features Professor Günter Ziegler from Institut für Mathematik, Freie Universität Berl
08:25
Calculating a Car Crash - Numberphile

10 months ago / 91 views

Check out https://brilliant.org/numberphile (20% off premium subscription) This video features Ben Sparks. More links below ↓↓↓ Ben Sparks website: https://www.bensparks.co.uk More of Ben on Numberphile: https://youtu.be/ETrYE4MdoLQ https://youtu.be/kbKtF
09:07
The Square-Sum Problem - Numberphile

10 months ago / 81 views

Matt Parker discusses a problem involving Square Sums. Go deeper with extra footage: https://youtu.be/7_ph5djCCnM More links & stuff in full description below ↓↓↓ More Matt Parker on Numberphile: http://bit.ly/Matt_Videos Matt's projects and other stuff:
16:12
River Crossings (and Alcuin Numbers) - Numberphile

10 months ago / 115 views

Discussing vertex covers and Alcuin numbers for graphs - and a famous old puzzle. Filmed at MSRI with Dr Annie Raymond. More links & stuff in full description below ↓↓↓ Annie Raymond: https://www.msri.org/people/38568 The Alcuin Number of a Graph: https:/
05:54
Ham Sandwich Problem - Numberphile

10 months ago / 93 views

This video features Dr Hannah Fry (more links below) ↓↓↓ Check out Brilliant.org: https://brilliant.org/numberphile (20% off premium subscription) That circle cutting problem on Brilliant: https://brilliant.org/NumberphileSandwich Hannah Fry on Twitter: h
06:03
Don Bradman's Duck - Numberphile

10 months ago / 99 views

One of the most famous stories from the sort of cricket involves numbers, averages, and a duck. More links & stuff in full description below ↓↓↓ Archive footage courtesy of AP Archive: https://www.youtube.com/c/aparchive * Batting average list shown was c
03:45
The infinite life of pi - Reynaldo Lopes

10 months ago / 98 views

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
13:17
Probability that at least 2 people in a room of 30 share the same birthday | Probability and Statist

10 months ago / 141 views

The probability that at least 2 people in a room of 30 share the same birthday. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/probability/probability-and-combinatorics-topic/probability_combinatorics/e/probab
04:34
OK Go Sandbox - One Moment of Math

10 months ago / 293 views

Damian Kulash, lead singer of OK Go, discusses the immense amount of math behind their video,”The One Moment”. This video is part of www.OKGoSandbox.org
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08:00
15 BRILLIANT MATH TRICKS THEY DON'T TEACH YOU AT SCHOOL

10 months ago / 284 views

Too bad they don't teach you this at school! But I always got you! So check out these genius Math tricks and have fun! ;) ---------------------------------------------------------------------------------------- 5-Minute Crafts: https://www.goo.gl/8JVmuC F
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01:22
Mathemagic - (a+b)²=a²+2ab+b² - But Why?

10 months ago / 115 views

http://www.youtube.com/watch?v=sv2iHQIpZW8 - Pythagoras Theorem explained by Bawa. One of the elementary formula in high school mathematics, most of us know this formula. But do we actually know why? In this video Khurshed Batliwala, fondly called as Bawa
02:29
Division with Zero - Maths Tricks #4

10 months ago / 111 views

In this video Bawa first explains what is division and then goes on to talk about division by zero. You will understand exactly why anything divided by zero is not defined, zero divided by anything is zero and zero divided by itself is indeterminate. This
01:29
Mathemagic - Did you know that the Nine Tables is in your fingers???

10 months ago / 119 views

With a post graduate in Mathematics from the Indian Institute of Technology, Bombay, Khurshed Batliwala, or "Bawa" as he is fondly known (a nick name that has stuck from his IIT days) is an extraordinary personality. In his own words, he decided "it was b
02:23
Mathemagic - Multiplying numbers using fingers

10 months ago / 123 views

With a post graduate in Mathematics from the Indian Institute of Technology, Bombay, Khurshed Batliwala, or "Bawa" as he is fondly known (a nick name that has stuck from his IIT days) is an extraordinary personality. In his own words, he decided "it was b
06:01
Can you solve the seven planets riddle? - Edwin F. Meyer

10 months ago / 477 views

Practice more problem-solving at https://brilliant.org/TedEd/ Solution to the bonus riddle mentioned at the end: https://brilliant.org/TedEdTitanic/ Your interstellar police squad has tracked a group of criminals to a cluster of seven planets. Now you mus
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05:02
How To Make a Hexaflexagon: The Definitive Guide

11 months ago / 123 views

Printable patterns: http://vihart.com/hexaflexagons Shirts (we only printed a limited run, sorry if we're sold out of your favourite!): https://store.dftba.com/collections/vi-hart This video is supported not mostly by shirts but mostly by viewers like you
04:45
Estimating p value from simulation

11 months ago / 109 views

Example estimating a p-value based on a simulation to approximate the sample distribution of the sample proportions (assuming the null hypothesis is true).
07:58
p values and significance tests

11 months ago / 98 views

p values, significance levels, null hypotheses, alternative hypotheses, and significance tests
05:42
Examples of null and alternative hypotheses

11 months ago / 114 views

Examples of null and alternative hypotheses
10:15
17 FAST MATHS TRICKS YOU MUST KNOW

11 months ago / 114 views

Wanna be a Math genius? Check out these tricks! They're garanteed to upgrade your Math skills and bring you on another level! ;) Subscribe to 5-Minute Crafts GIRLY: https://goo.gl/fWbJqz Subscribe to 5-Minute Workouts: https://goo.gl/67owiQ 5-Minute Craft
09:13
Math Antics - Subtracting Mixed Numbers

11 months ago / 127 views

Learn More at mathantics.com Visit http://www.mathantics.com for Free math videos and additional subscription based content!
15:14
Mo Gawdat of Google X: The Secret to Happiness May Lie in a Mathematical Equation

11 months ago / 94 views

Mo Gawdat, the chief business officer of the moonshot factory Google X, has designed an algorithm to make you happy. Gawdat started writing when his son died. The resulting book, Solve for Happy, describes the model of happiness that he and his late son b