Topic: math

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World record for the largest domino toppled in a chain

In August, 2009, Stefan Schöppers and his team succeeded in breaking the world record for the largest domino toppled in a chain that begins with a “regular”-size domino. Their largest domino, shown in the ...

Will YouTube Ever Run Out Of Video IDs?

Every YouTube video has a unique ID based on a counting system called Base 64. Randomly generated, that Base 64 ID allows YouTube to have a unique yet short url by using the alphabet in lowercase and uppercase plus tw...

Why the metric system matters

The United States is one of three countries in the world that has not adopted the metric system, and that may fall to two if Burma embraces metrication. How did inches, feet, pounds, gallons, and other familiar United...

Why do honeybees love hexagons?

What is it about the six-sided hexagon that makes it such a perfect shape for storing honey? It's an efficient design! Just ask a bee, one of nature’s finest mathematicians, or watch this TED Ed by Zack Patterson and ...

What is Sea Level? – Minute Physics

Sea Level! What is it and how do scientists calculate it? As it turns out, there are actually many complexities in determining this measurement. For example, Earth isn’t actually a sph...

What are years? – Minute Physics

What is a year? It’s a question I get asked a fair amount around here… What’s a year? How many days until Saturday? How many minutes in an hour? How long until I can play gam...

Vi Hart’s Hexaflexagon

Grab some strips of paper and join math video storyteller and “mathemusician” Vi Hart as she introduces the Hexaflexagon: This video is based on, and in honor of, Martin Gardner’s first Mathemat...

Universal Calendar Puzzle: Figure out the day of the week for any date ever

Learn how to calculate the day of the week for any date you can think of with this impressive mental trick and some practice. In this It's Okay to Be Smart video, Universal Calendar Puzzle, Joe Hanson demonstrates the...

Understanding tether dynamics through kite flying

For Hilary Costello's ongoing Ph.D. research, she can be found inside at a computer, coding and writing equations, and outside flying kites in the wide open spaces of Cambridge University. Her goal: "design an aerodyn...

Types of Triangles, a Flocabulary math music video

This triangle is acute. Right triangle, obtuse. Isosceles, scalene. Equilateral, now you know the whole team. Learn the basics of triangles with Types of Triangles, a catchy and informative math music video from th...

Turing Tumble, a DIY mechanical computer powered by marbles

The Turing Tumble, this small Pachinko-like puzzle game prototype, is also DIY mechanical computer. Programmer Paul Boswell designed the Turing complete toy to help kids (and adults) learn, see, and feel how computers...

Three Gears are Possible

If you've ever seen an image of three gears all interlocking or an odd number of interconnecting gears, like those gears on some British two pound (£2) coins, you've seen a gear configuration that does not work. Howev...

The Very Hungry Maggot: How larva farming can help reduce food waste

How are maggots like waves in an ocean? How are they like puppies? In this fascinating Macroscope video from Science Friday, The Very Hungry Maggot, we meet David Hu, a mechanical engineering professor who's studying ...

The Universal Tea Machine, a huge mechanical ‘adding computer’

"The better your binary addition skills the better your cup of tea!" The Universal Tea Machine by Smout Allen is a huge mechanical 'adding computer' that mixes tea and mixes tea, a British tradition that became popula...

The Universal Pattern Popping Up in Math, Physics, & Biology

Scientists have discovered a mysterious universal pattern that "connects a bus system in Mexico and chicken eyes to quantum physics and number theory." MentalFloss summarizes the formerly hidden phenomenon, known as u...

The Story of Zero – Getting Something from Nothing

Once upon a time, zero wasn’t really a number. Its journey to the fully fledged number we know and love today was a meandering one. Today, zero is both a placeholder, and tool, within our number system signifying an a...

The Sphere-Packing Problem

The next time you're eating candy, ask yourself: "What's the best way to stack this?" Then start arranging them to find out. The answer to this question can be found in the shape of the candy. In this University of...

The Sound of Ice: Skating on thin black ice makes sci-fi movie laser sounds

This small lake outside Stockholm, Sweden, emits otherworldly sounds as Mårten Ajne skates over its precariously thin, black ice. “Wild ice skating,” or “Nordic skating,” is both an art and a science. A skater seeks o...

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