Math
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04:47
Puzzles: 5 "easy"... and one impossible!! (with answers)
/ 615 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
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03:50
Most People Fail!! (IQ test with answers)
/ 665 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
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03:28 Popular
95% Fail: 8 funny trick questions your friends will ALWAYS get wrong! (with answers)
/ 2,790 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 no-one would get them right when asked spontaneously. See for yourself, whether you will get the right
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05:18 Popular
Can you solve the rebel supplies riddle? - Alex Gendler
/ 972 viewsPractice 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
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04:33
Fractals: The Geometry of Chaos - Christmas Lectures with Ian Stewart
/ 525 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
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07:45
The Monty Hall Problem - Christmas Lectures with Ian Stewart
/ 501 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
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02:50
Urban planners aim to eliminate slums—with a mathematical approach
/ 559 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 ------
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02:09 Popular
What is a fractal? A lens to infinity
/ 1,228 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
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01:34 Popular
Matchstick Dog
/ 762 viewsIf 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
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01:30
Left-Facing Fish
/ 652 viewsDeane 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
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02:00
Maps, States & Borders
/ 528 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:/
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02:36
Making Toast Fast
/ 469 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
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04:39
The mysterious isochronous curve
/ 637 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.
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04:12 Popular
Window Puzzles
/ 704 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
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01:51
How to cut a pipe squarely
/ 516 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.
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01:41
Measuring Volume with a Ruler
/ 675 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
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03:42
Magically-Linked Donuts
/ 401 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 ➤
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05:39 Popular
Can You Solve A 5th Grade Problem From China? Find The Area Of ABCD
/ 774 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
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08:51 Popular
The Viral Balloon Puzzle - The REAL Answer Explained (Using Ph.D. Level Math)
/ 749 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/p6aMk-82U Sources https://puzzling.stackexchange.com/que
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07:52 Popular
What Does a 4D Ball Look Like in Real Life? Amazing Experiment Shows Spherical Version of Tesseract
/ 771 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
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05:08 Popular
Can you solve the Leonardo da Vinci riddle? - Tanya Khovanova
/ 965 viewsPractice 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
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16:55 Popular
Calculating π by hand: the Chudnovsky algorithm
/ 903 viewsFor Pi Day 2018 I calculated π by hand using the Chudnovsky algorithm. https://en.wikipedia.org/wiki/Chudnovsky_algorithm k = 0 42698672/13591409 = 3.141592|751... k = 0 and k = 1 42698670.666333435968/13591408.9999997446 = 3.14159265358979|619... Watch m
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14:53
How thick is a three-sided coin?
/ 661 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 three-sided coin! The bonus
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14:53
THE SCUTOID: did scientists discover a new shape?
/ 517 viewsRead 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
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12:17 Popular
How to detect bank fraud with maths
/ 766 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
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02:23 Popular
Tricks to Learn When Multiplying and Dividing Fractions With Mixed Numbers
/ 1,670 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
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01:48 Popular
How to Multiply Negative Mixed Numerals
/ 1,285 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
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01:43
How to Multiply With Parentheses
/ 410 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
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02:08 Popular
Tutorial for Adding & Subtracting Fractions
/ 1,931 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
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04:22 Popular
How to Determine the Area of a Triangle Based on Coordinates of Its Vertices & Determinants
/ 1,681 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
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01:32 Popular
How to Solve for the Height of Cylinders
/ 764 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
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02:41 Popular
How to Substitute Known or Given Values for the Variables in an Algebraic Expression
/ 1,014 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.
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01:59 Popular
Graphing Inequalities on a Number Line
/ 1,019 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
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01:42 Popular
How To Use Rounding in Math Problems
/ 1,355 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
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03:04 Popular
Steps to Solve Quadradic Equations
/ 881 viewsSteps 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
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02:20 Popular
How to Solve Sine & Cosine Equations
/ 1,678 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
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03:05 Popular
Four Steps to Solve a Absolute Value Equation
/ 1,035 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
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01:46 Popular
Easy Way of Learning to Subtract Fractions With Whole Numbers
/ 1,373 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
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01:41 Popular
How to Add and Subtract Mixed Numbers and Show the Work
/ 2,047 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
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01:56 Popular
How to Do Fractional Coefficients
/ 1,300 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
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01:34 Popular
What Happens When a Fraction Is Multiplied by Its Reciprocal?
/ 845 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
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00:57 Popular
How Do You Multiply Numbers in Brackets?
/ 1,246 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
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02:53 Popular
Slope Equation for Intersecting Lines
/ 707 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
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02:15 Popular
How to Add Square Roots to Numerator Fractions
/ 983 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
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01:14 Popular
How to Multiply to Get the Area of a Parallelogram
/ 1,511 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
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02:06 Popular
Types of Angles, Figures & Shapes
/ 1,488 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
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02:17 Popular
The Advantages of Using the Least Common Denominator When Adding & Subtracting Denominators
/ 739 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
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11:13
Last Cards Match - Numberphile
/ 543 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
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05:35
Balls and Cones - Numberphile
/ 580 viewsThis 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
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16:26
Earthquakes, Circles and Spheres - Numberphile
/ 515 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:
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16:19
The Cross Ratio - Numberphile
/ 553 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
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04:36
How to make a Klein Bottle from an old pair of jeans - Numberphile
/ 652 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
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11:37 Popular
Floating Balls and Lift - Numberphile
/ 852 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
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10:51 Popular
Math Antics - Intro to the Metric System
/ 1,604 viewsLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
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03:21
Can You Solve A Puzzle That Fooled Richard Feynman?
/ 691 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
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05:48
What Is The Area? "You Should Be Able To Solve This"
/ 486 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
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05:52
Can You Solve The "MEANEST" SAT Test Question Ever?
/ 675 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
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09:15
5-Sided Square - Numberphile
/ 611 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
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08:15 Popular
The Mathematics of Locomotion - Christmas Lectures with Ian Stewart
/ 1,131 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
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05:13 Popular
Can you solve the rogue AI riddle? - Dan Finkel
/ 943 viewsPractice 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
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11:50 Popular
The Golden Angle - Christmas Lectures with Ian Stewart
/ 970 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/
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05:51
The Mathematics of Walking and Gait - Christmas Lectures with Philip Morrison
/ 472 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
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10:12 Popular
21-card trick - Numberphile
/ 966 viewsA 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
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04:40 Popular
How exactly does binary code work? - José Américo N L F de Freitas
/ 736 viewsCheck 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 Popular
Are We Breathing Caesar's Last Breath
/ 828 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
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06:59
Can animals predict the future? Meet Barry the Psychic Labrador!
/ 481 viewsBarry 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
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10:22 Popular
Why do whole oranges float, but peeled oranges sink?
/ 961 viewsGo 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
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06:01
How many different World Cup results can a team have?
/ 543 viewsRegister 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
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03:22
The Rug Puzzle: how many triangles?
/ 509 viewsThis 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
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04:46 Popular
Can you solve the Mondrian squares riddle? - Gordon Hamilton
/ 739 viewsPractice 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
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09:09
The Illumination Problem - Numberphile
/ 539 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
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08:39
Frog Jumping - Numberphile
/ 622 viewsFeaturing 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
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08:45
The Legend of Question Six - Numberphile
/ 375 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
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04:19
Lace Knot Trick - Numberphile
/ 414 viewsPlaylist 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
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11:13
Coffee Cup Vibrations - Numberphile
/ 577 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
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07:04
The Secret of Floppy Paper - Numberphile
/ 402 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:
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06:34
The Most Powerful Dice - Numberphile
/ 503 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
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05:56 Popular
A Strange Change of Rotation - Numberphile
/ 1,305 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
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07:52
UNCRACKABLE? The Collatz Conjecture - Numberphile
/ 550 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
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08:50
The Electric Slide Rule - Numberphile
/ 577 viewsCliff 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
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02:41
Paper Calculator - Numberphile
/ 560 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:
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16:12
Stars and Bars (and bagels) - Numberphile
/ 407 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
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10:05
The Slightly Spooky Recamán Sequence - Numberphile
/ 535 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
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09:03
Weber's Law - Numberphile
/ 410 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
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22:11
g-conjecture - Numberphile
/ 476 viewsDiscussing 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
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08:45
Conway Checkers - Numberphile
/ 537 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
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10:48
Apéry's constant (calculated with Twitter) - Numberphile
/ 486 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
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12:18
Lorentz Transformations | Special Relativity Ch. 3
/ 547 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
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05:20 Popular
Can you solve the giant cat army riddle? - Dan Finkel
/ 856 viewsPractice 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
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06:13
Calculating the circumference of the Earth in 200 BC
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The Man Teaching Math Lessons in the Sky
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The Law All Languages Obey
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Galton Board
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Proof that 1 = 2.
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How to find a square root
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Superpermutations - Numberphile
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Ham Sandwich Problem - Numberphile
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How To Make a Hexaflexagon: The Definitive Guide
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Science Artist Uses Math to Make Sculptures
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Proof Without Words: The Circle
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How to Count Infinity
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Foiled Proof
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The Actual Mathematics of Popping Champagne Corks
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Hexaflexaflakes
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05:21
Will We All Be Overweight By 2048?
/ 633 viewsWill we all be overweight by 2048? The dangers of linear regression and linear thinking. Taken from a chapter of Jordan Ellenberg's amazing book How Not to Be Wrong: The Power of Mathematical Thinking. Thanks to the Vlogbrothers for their sponsorship of t
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04:58 Popular
What is the tragedy of the commons? - Nicholas Amendolare
/ 703 viewsCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/what-is-the-tragedy-of-the-commons-nicholas-amendolare Is it possible that overfishing, super germs, and global warming are all caused by the same thing
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12:47 Popular
Math Antics - Mixed Numbers
/ 2,161 viewsIn this re-make of our Mixed Numbers video, we take a more intuitive approach to converting between Mixed Numbers and Improper Fractions. You can still access the old version of the video here: https://www.youtube.com/watch?v=-55KA6kaXFY
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03:37
Are University Admissions Biased? | Simpson's Paradox Part 2
/ 578 viewsSimpson's Paradox Part 2. Thanks to Skillshare for supporting this video! Head to http://skl.sh/minutephysics for your first two months free. Comments disabled because the discourse failed to remain civil. This video is about how to tell whether or not un
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06:02 Popular
Math, When Are You Going To Use It?
/ 903 viewsIf you're in or went to high school, you're familiar with the phrase "When am I ever going to use this?" when talking about pretty much anything you learn in math class. This is the answer to that question. The real answer, not something like "one day a s
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05:58 Popular
Can You Crack This Four Card Code?
/ 765 viewsA surprisingly tricky card riddle. You'll need to put your thinking caps on for this one. Hi! I'm Jade. I'm an Aussie with a Bachelor's degree in Applied Physics. After three years and over 100 lab sessions, I realized I'm terrible at experiments. So now
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05:01
The Physics of SANTA
/ 491 viewsThe Physics of Santa. With nearly 2 billion children in the world, how does Santa deliver all those presents on Christmas Eve? Hi! I'm Jade. I want to share the wonderful world of physics with you in an easy and fun way. ***SUBSCRIBE*** https://www.youtub
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05:27
An unexpected way to inflate a balloon - Numberphile
/ 467 viewsUsing a kamifusen (a Japanese paper balloon). Featuring Tadashi Tokieda. More Tadashi videos: http://bit.ly/tadashi_vids More links & stuff in full description below ↓↓↓ Objectivity (videos by Brady about science objects): http://bit.ly/Objectivity Discus
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13:59
MENACE: the pile of matchboxes which can learn
/ 478 viewsSee more data and check out what we changed on the second day (which caused MENACE to learn a different strategy) in the second video: https://youtu.be/KcmjOtkULi4 Check out Matt Scroggs’s original blog post about MENACE and in the amazing Chalkiest magaz
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02:14
Visualizing the 600-Cell
/ 506 viewsMathematician/geometer Dugan Hammock of Quantum Gravity Research shows us a visualization of the 4-dimensional 600-Cell projected to 3D object (further projected, technically, to 2D on his computer screen.) The 600-Cell is a 4-dimensional shape made of 60
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05:27 Popular
9 Tricky Puzzles That Will Totally Blow Your Brain
/ 943 viewsOnce you show children’s puzzles toadults, most ofthem immediately get abrain freeze. Try to stretch your brain alittle and check ifyou can cope with questions from children’s books! Subscribe to Bright Side : https://goo.gl/rQTJZz -----------
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04:47 Popular
Can you solve the egg drop riddle? - Yossi Elran
/ 1,138 viewsCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/can-you-solve-the-egg-drop-riddle-yossi-elran The city has just opened its one-of-a-kind Faberge Egg Museum, with a single egg displayed on each floor o
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14:18
The Ideal Auction - Numberphile
/ 432 viewsPreston McAfee is the chief economist at Microsoft. More links & stuff in full description below ↓↓↓ Benford's Law: https://youtu.be/XXjlR2OK1kM Preston McAfee: http://www.mcafee.cc Animation by Pete McPartlan Numberphile is supported by the Mathematical
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08:55
Pancake Numbers - Numberphile
/ 539 viewsKatie Steckles on Pancake Numbers.. Signup for your FREE trial to The Great Courses Plus here: http://ow.ly/EJwH30fiZ1d More links & stuff in full description below ↓↓↓ More Numberphile videos with Katie: http://bit.ly/Steckles_Playlist Katie Steckles web
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03:32
When do clock hands overlap? - Numberphile
/ 427 viewsHow often do a clock's minute and hour hands cross? Featuring Cliff Stoll..... See Objectivity at: https://www.youtube.com/c/ObjectivityVideos More links & stuff in full description below ↓↓↓ More Cliff videos: http://bit.ly/Cliff_Videos Cliff Stoll's Kle
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10:06
Matt & Hugh: the mystery of two balls in a can
/ 561 viewsDr Hugh Hunt is a Senior Lecturer in Engineering at the University of Cambridge and a Fellow of Trinity College. http://www.hughhunt.co.uk/ Watch Hugh and I calculate how fast a motorbike can go on a wall of death. https://youtu.be/b23i3NhFLDc CORRECTIONS
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04:30 Popular
Where do math symbols come from? - John David Walters
/ 862 viewsSign up for our newsletter here: https://ed.ted.com/newsletter View full lesson: https://ed.ted.com/lessons/where-do-math-symbols-come-from-john-david-walters Math is full of symbols: lines, dots, arrows, English letters, Greek letters, superscripts, subs
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04:47
The Case for Hovercars
/ 462 viewsMathematically, they've got a lot going for them. Last week's video on the calculus of bad driving: https://www.youtube.com/watch?v=pI62ANEGK6Q NOTE: Leibniz independently discovered/invented calculus. Liebnitz is my imaginary slope friend.
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03:54 Popular
THESE POPULAR RIDDLES WILL BLOW YOUR MIND - Decipher Riddles & Brain Teasers
/ 1,396 viewsTHESE POPULAR RIDDLES WILL BLOW YOUR MIND - Decipher Riddles & Brain Teasers These popular riddles on logic can be solved by any kid or adult who has high IQ. These riddles with answers will always test your brain and make your brain scratch. There are th
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11:37 Popular
CARNIVAL SCIENCE- How to Win!
/ 845 viewsPrepare to drop some knowledge next time you visit the carnival. Go expand your mind and learn something new at Skillshare.com. The first 300 people get 2 months FREE! http://skl.sh/rober MUSIC- 0:21- Ceral Killa- Blue Wednesday - https://soundcloud.com/b
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04:40
Simpson's Paradox
/ 560 viewsThanks to https://brilliant.org/minutephysics for sponsoring this video! This video is about Simpson's paradox, a statistical paradox and ecological fallacy where seemingly contradictory results are implied by a single set of data depending on how it's gr
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05:29
Creating The Never-Ending Bloom
/ 577 viewsHelp support our video productions: http//www.patreon.com/scifri *Correction May 1, 2017: At 2:06, a graphic in the video incorrectly wrote the formula for the golden ratio. It should be B/A = A/(A+B). We regret the error. John Edmark's sculptures are bot
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05:32 Popular
How did Polynesian wayfinders navigate the Pacific Ocean? - Alan Tamayose and Shantell De Silva
/ 763 viewsLearn more about TED-Ed Clubs here: https://ed.ted.com/clubs Visit the TED-Ed Clubs YouTube channel: https://www.youtube.com/channel/UCskU_g7t6b5ecsA1CTS3y9Q View full lesson: https://ed.ted.com/lessons/how-did-polynesian-wayfinders-navigate-the-pacific-o
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05:35
Secrets to measuring a piece of paper - Numberphile
/ 448 viewsWhen Cliff Stoll sets your homework, there's always an extra lesson. More links & stuff in full description below ↓↓↓ More Cliff videos: http://bit.ly/Cliff_Videos Cliff's Klein Bottles: http://www.kleinbottle.com Numberphile is supported by the Mathemati