常速英语

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Just as explorers have always sought to map new worlds, neuroscientists have sought to map the brain, trying to chronicle its connections and deduce how it works. But making a brain map is easier...

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In this animation, we'll see the remarkable way our DNA is tightly packed up to fit into the nucleus of every cell. The process starts with assembly of a nucleosome, which is formed wh...

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This 9-millimetre-wide fragment of tiny molar was the first evidence of an ancient, equally tiny, human. It was found in a recent archaeological dig on an island in Indonesia, and sheds new light ...

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The world we live in feels normal, ordinary. It feels like this is just how humans exist and always existed. But, it's not. Never before have we humans lived in a world as sophisticated and enginee...

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[NARRATOR:] The DNA double helix contains two sequences of nucleotide code letters that run along the molecule. Untwist the spiral, and DNA can be seen as two parallel strands. That'...

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The physics of sneezes is at the heart of understanding how pathogens of one individual become the pathogens of another. So without that step of transportation of the pathogens from one host to th...

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A lot of things can be beautiful. Landscapes, faces, fine art, or epic architecture; stars in the sky. Or simply the reflection of the sun on an empty bottle. Beauty is nothing tangible, it only ex...

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The structure of DNA that Watson and Crick discovered suggests how genetic information is passed on. Before a cell divides the double helix unwinds and the two strands of the DNA molecule in the nucle...