常速英语

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We're going to be looking at these electrical impulses, these flashes, which are called action potentials, are crossing three neurons in the circuit here. And as we look in higher po...

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Hurricanes are really big storms that start really small. Hurricane Katrina, which devastated New Orleans, had winds of 130 miles an hour. Most hurricanes that hit the US start as sma...

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Well, let me show you this now, in a video that Mike Oldstone at Scripps Institute in San Diego put together. Let's run this. This is a cytotoxic T cell that you see on the top. And ...

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How do the presidential candidates feel about science? On November the 8th voters will decide whether Hillary Clinton or Donald Trump will lead the country. It’s pretty clear what Hilary C...

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You remember messenger RNA and new viral proteins being made essentially to assemble new virions, but something else can happen to those viral proteins. There are host proteins called ubi...

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So, my name is Dan Shechtman. I am a distinguished professor at the Technion Institute in Isreal. I’m a laureate of the Nobel Prize in Chemistry, 2011, for the discovery of quasi-periodic ...

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Once a gene has been located and transcribed into mRNA it must first be edited before it can be translated into a protein. This editing process is called splicing. It involves removing ...

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I'm Mike Lemonick, and I'm really interested in exoplanets, planets around other stars. I'm Lee Billings, and I too am very interested in planets around other stars. Yeah, well I wrote ...