Topic: numbers

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The stories behind Fahrenheit and Celsius

Fahrenheit (°F) is a unit of measurement for temperature. Daniel Gabriel Fahrenheit (1686–1736) is the inventor of the mercury-in-glass thermometer and the aforementioned scale of measurement. In this Veritasium video...

How zip codes helped organize America

The 'zip' in zip code stands for The Zone Improvement Plan, an address code system that was invented in 1963 to help the United States Postal Service (USPS) deliver the increasing amount of mail being sent around the ...

How a mathematician dissects an astonishing coincidence

True story about an adventure that befell Anne Parrish one June day in Paris. She was wandering through the old book stalls along the Seine with her husband who had been there before. He sat down at a table on the qua...

The Remarkable Way We Eat Pizza – Numberphile

You may never look at a pizza or an orange in the same way again. Watch as astronomer, author, and teacher Cliff Stoll explains the Theorema Egregium or the Remarkable Theorem in this Numberphile vid. More via Aatish ...

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...

Can you solve the locker riddle? – TED Ed

File under factors, multiples, square numbers, prime numbers, and sequences: This classic mystery novel set up has a wonderful math puzzle twist: Your rich, eccentric uncle just passed away, and you and your 99 na...

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...

Venus flytraps count to avoid being tricked

If you're a venus flytrap (Dionaea muscipula), how do you know you've got a fly in your midst and not a raindrop? You count. Via ScienceMag: In order to mimic insect prey, the scientists stimulated the hairlike sen...

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 in Manchester, circa 1906, CollectingMe...

The mathematical secrets of Pascal’s triangle – TED Ed

It's known as Pascal's triangle in the Western world, but centuries before that, it was the Staircase of Mount Meru in India, the Khayyam Triangle in Iran, and Yang Hui's Triangle in China. It can look complicated at ...

Ferrolic – A ferrofluid clock prototype by Zelf Koelman

Watch ferromagnetic fluid travel across a blank surface like living creatures: undulating forward, dancing rhythmically, blobbing together in organic shapes to digitally display the current time. Ferrolic, a ferroflui...

Design Ah! (デザインあ) introduces kids to design concepts

In 2011, Japan's NHK television network began broadcasting Design Ah!, a Peabody award-winning children's educational program that explores different types of creative thinking for viewers of all ages. With an "Ah" th...

More Evidence Birds Can Count: Where’d that other mealworm go?

Researchers are eagerly tricking wild New Zealand robins, but it's FOR SCIENCE! Watch as this box with a sliding trick drawer helps Alexis Garland and Jason Low at Victoria University of Wellington observe the behavio...

Sesame Street’s Numerosity: Baker Number 10

Numerosity, also known as The Henson 10, also known around our house as The Baker videos: this is number 10 in the series of number shorts by Jim Henson for the first season of Sesame Street in 1969. While the bak...

Greek Legacy: How the Ancient Greeks shaped modern mathematics

Travel back in time to Ancient Greece where revolutionary thinkers – from Thales, Pythagoras, Democritus and Aristotle to Euclid, Archimedes, and Hypatia of Alexandria – helped define the rule...

Mathematica – A World of Numbers… and Beyond

In 1961, an interactive exhibition called Mathematica: A World of Numbers… and Beyond inaugurated the new science wing at Los Angeles’ California Museum of Science and Industry. Spo...

Sesame Street’s Mad Painter paints the number 7

Sesame Street’s Mad Painter paints the number 7, starring Paul Benedict and featuring Stockard Channing and Jerome Raphel. We especially love the jaunty silent film-style music. After th...

Lusine – Two Dots

Released in 2009, Ghostly International and director Britta Johnson present Lusine's Two Dots.

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