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Why are manhole covers round? - Marc Chamberland
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Math in Real Life
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- 1 Why don't perpetual motion machines ever work? - Netta Schramm
- 2 Where do math symbols come from? - John David Walters
- 3 What's the fastest way to alphabetize your bookshelf? - Chand John
- 4 Why do airlines sell too many tickets? - Nina Klietsch
- 5 What's the difference between accuracy and precision? - Matt Anticole
- 6 How high can you count on your fingers? (Spoiler: much higher than 10) - James Tanton
- 7 The unexpected math behind Van Gogh's "Starry Night" - Natalya St. Clair
- 8 The Infinite Hotel Paradox - Jeff Dekofsky
- 9 Can you solve the bridge riddle? - Alex Gendler
- 10 Can you solve the prisoner hat riddle? - Alex Gendler
- 11 Can you solve "Einstein’s Riddle"? - Dan Van der Vieren
- 12 Can you solve the temple riddle? - Dennis E. Shasha
- 13 Can you solve the three gods riddle? - Alex Gendler
- 14 Can you solve the locker riddle? - Lisa Winer
- 15 Can you solve the passcode riddle? - Ganesh Pai
- 16 Can you solve the prisoner boxes riddle? - Yossi Elran
- 17 Can you solve the frog riddle? - Derek Abbott
- 18 Can you solve the counterfeit coin riddle? - Jennifer Lu
- 19 Can you solve the control room riddle? - Dennis Shasha
- 20 Can you solve the virus riddle? - Lisa Winer
- 21 Can you solve the airplane riddle? - Judd A. Schorr
- 22 Why do competitors open their stores next to one another? - Jac de Haan
- 23 Can you solve the river crossing riddle? - Lisa Winer
- 24 Can you solve the pirate riddle? - Alex Gendler
- 25 Exponential Growth: How Folding Paper Can Get You to the Moon
- 26 Can you solve the fish riddle? - Steve Wyborney
- 27 Can you solve the egg drop riddle? - Yossi Elran
- 28 Exploring other dimensions - Alex Rosenthal and George Zaidan
- 29 Why do honeybees love hexagons? - Zack Patterson and Andy Peterson
- 30 What is Zeno's Dichotomy Paradox? - Colm Kelleher
- 31 The mathematical secrets of Pascal’s triangle - Wajdi Mohamed Ratemi
- 32 Is math discovered or invented? - Jeff Dekofsky
- 33 Can you solve the dark coin riddle? - Lisa Winer
- 34 Group theory 101: How to play a Rubik’s Cube like a piano - Michael Staff
- 35 How to defeat a dragon with math - Garth Sundem
- 36 Check your intuition: The birthday problem - David Knuffke
- 37 One is one ... or is it?
- 38 The last banana: A thought experiment in probability - Leonardo Barichello
- 39 How many ways can you arrange a deck of cards? - Yannay Khaikin
- 40 Inside OKCupid: The math of online dating - Christian Rudder
- 41 What's an algorithm? - David J. Malan
- 42 Can you solve the seven planets riddle? - Edwin F. Meyer
- 43 A brief history of banned numbers - Alessandra King
- 44 The math behind Michael Jordan’s legendary hang time - Andy Peterson and Zack Patterson
- 45 The origin of countless conspiracy theories - PatrickJMT
- 46 How many ways are there to prove the Pythagorean theorem? - Betty Fei
- 47 The infinite life of pi - Reynaldo Lopes
- 48 How to spot a misleading graph - Lea Gaslowitz
- 49 A clever way to estimate enormous numbers - Michael Mitchell
- 50 Why do people get so anxious about math? - Orly Rubinsten
- 51 The case of the missing fractals - Alex Rosenthal and George Zaidan
- 52 What happens if you guess - Leigh Nataro
- 53 Making sense of irrational numbers - Ganesh Pai
- 54 How the Königsberg bridge problem changed mathematics - Dan Van der Vieren
- 55 Pizza physics (New York-style) - Colm Kelleher
- 56 The beauty of data visualization - David McCandless
- 57 Did Shakespeare write his plays? - Natalya St. Clair and Aaron Williams
- 58 The mathematics of sidewalk illusions - Fumiko Futamura
- 59 Why are manhole covers round? - Marc Chamberland
- 60 Can you find the next number in this sequence? - Alex Gendler
- 61 What is a vector? - David Huynh
- 62 A brief history of numerical systems - Alessandra King
- 63 The coin flip conundrum - Po-Shen Loh
- 64 The mighty mathematics of the lever - Andy Peterson and Zack Patterson
- 65 What in the world is topological quantum matter? - Fan Zhang
- 66 An introduction to mathematical theorems - Scott Kennedy
- 67 How algorithms shape our world - Kevin Slavin
- 68 How to visualize one part per million - Kim Preshoff + The TED-Ed Community
- 69 How does math guide our ships at sea? - George Christoph
- 70 How to organize, add and multiply matrices - Bill Shillito
- 71 The time value of money - German Nande
- 72 A trip through space to calculate distance - Heather Tunnell
- 73 Euclid's puzzling parallel postulate - Jeff Dekofsky
- 74 Math class needs a makeover - Dan Meyer
- 75 Gridiron physics: Scalars and vectors - Michelle Buchanan
- 76 Why can't you divide by zero? - TED-Ed
- 77 The beautiful math of coral - Margaret Wertheim
- 78 Fractals and the art of roughness - Benoit Mandelbrot
- 79 Symmetry, reality's riddle - Marcus du Sautoy
- 80 Building unimaginable shapes - Michael Hansmeyer
- 81 Can you solve the Mondrian squares riddle? - Gordon Hamilton
- 82 How exactly does binary code work? - José Américo N L F de Freitas
- 83 Can you solve the Leonardo da Vinci riddle? - Tanya Khovanova
- 84 The greatest mathematician that never lived - Pratik Aghor
- 85 The satisfying math of folding origami - Evan Zodl
- 86 The paradox at the heart of mathematics: Gödel's Incompleteness Theorem - Marcus du Sautoy
- 87 The method that can "prove" almost anything - James A. Smith
