# 11 results for:numberphile

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## Mental Logs number sticks, a math magic trick

...work? Mathematician Dr. Katie Steckles demonstrates a simple mental math trick in this Numberphile video: Number Sticks. Buy the Mental Logs magic trick on Amazon, or make your own....

## The Graceful Tree Problem

...In this Numberphile video, Canadian board game and puzzle designer Gordon Hamilton of Math Pickle demonstrates how the anatomies of these different species help determine if they’re solvable or not....

## Anastasia Chavez explains the 21-card trick

How can you use math to astonish your friends and family? Try the 21-card trick. Filmed for Numberphile, UC Davis Department of Mathematics Postdoc Anastasia Chavez demonstrates step-by-step how...

## Can you solve the Mondrian squares riddle?

...puzzle designer and MathPickle founder Gordon Hamilton wrote this TED Ed lesson, an animated version of his Numberphile video. Next: How to multiply numbers by drawing lines, the mathematical...

## An unexpected way to inflate a balloon – Numberphile

...as spherical koi, pufferfish, penguins, monkeys, racoons, and other animals. In this Numberphile video with Brady Haran, Japanese mathematician Tadashi Tokieda explores the physics behind why this paper sphere with...

## How to equally share a cake between three people

...any envy about a piece they didn’t get? This recently discovered, multi-step process of cutting and choosing three pieces of cake is demonstrated by mathematician Dr. Hannah Fry for Numberphile....

## Three Gears are Possible

...seen a gear configuration that does not work. However, three gears are possible. Mathematician and 3D printing enthusiast Henry Segerman shows us some creative examples in this video from Numberphile....

## The Remarkable Way We Eat Pizza – Numberphile

...Remarkable Theorem in this Numberphile vid. More via Aatish Bhatia: Cut an orange in half, eat the insides (yum), then place the dome-shaped peel on the ground and stomp...

## The iPhone of Slide Rules – Numberphile

From Numberphile, science and math writer Alex Bellos introduces the slide rule and then shares “the iPhone of Slide Rules” — the Halden Calculex. On the pocket-sized disk made...

## Fold & Cut Theorem – Cut any shape from only one cut

Can you cut a square from the center of a piece of paper with just one straight cut? Spoiler: YES, you can. In this Numberphile video, Manchester-based mathematician Dr....

## The Scientific Way to Cut a Cake – Numberphile

This “scientifically correct way” to cut a cake will not work for birthday parties, where the cakes are often consumed too quickly by kids and adults alike, but...

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