What do Euclid, 12-year-old Einstein, and American President James Garfield have in common? They all came up with elegant proofs for the famous Pythagorean theorem, one of the most fundamental rules of geometry and the basis for...

The Hubble Telescope spots something violating one of the universe's most fundamental laws. What did it see? | For more, visitef='http://www.sciencechannel.com/tv-shows/are-we-alone?/#mkcpgn=ytsci1' target='_blank'...

Andrew Flintoff on his difficult journey to becoming a professional boxer As a cricketer he was one of England's most accomplished players - a gung-ho all-rounder who, when on form, could marmalise well-respected bowling attacks and who...

In this video lesson we will learn the rules for adding rational numbers. We will apply the rules we have learned for adding integers. When adding the same signed rational values, we will add the absolute values and keep the sign. When...

Descubre cómo las aves pueden usar el campo magnético de la Tierra para migrar.
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natgeotv.com/taboo ➡ Subscribehttp://bit.ly/NatGeoSubscribe' target='_blank' rel='nofollow'>Subscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through...

Stories of discovery and invention often begin with a problem that needs solving. Summoned by the king to investigate a suspicious goldsmith, the early Greek mathematician Archimedes stumbles on the principle that would make him famous.

Kathmandu is dusty, dirty and very loud. Power cuts are a daily problem and Internet connectivity is patchy. But in Nepal’s biggest university at the heart of the city, one ambitious scientist has been trying to boost the country’s...

You may be familiar with the Moon turning red during lunar eclipses, but did you know that it can sometimes appear to have a blue hue? Martin Mangler, a volcano researcher at the Museum, explains what causes a blue moon. Discover more...

Baby salmon are called alevin and can live in tanks with as many as 40,000 other little fish. Expert Steven shows how it's possible to feed so many fish. For lots of great resources to support this video, visit our