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Sunday, January 5, 2014

Einstein's Big Idea: E = mc2 Explained (Nova)

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E = mc2 Explained


How would 10 top physicists—two Nobel Prize winners among them—describe Einstein's equation to curious non-physicists? Listen online by selecting Play All or choose individual clips below. Listen offline bydownloading clips, or subscribe to our podcast.
Play all
Nima Arkani-Hamed
Nima Arkani-Hamed
Theoretical Physicist
Harvard University

"Things that seem incredibly different can really be manifestations of the same underlying phenomena."
Listen

Running time 1:23
Janet Conrad
Janet Conrad
Experimental Physicist
Columbia University

"For me there's a lot more to the equation than E = mc2."
Listen

Running time 1:32
Sheldon Glashow
Sheldon Glashow
Theoretical Physicist and Nobel Laureate
Boston University

"When an object emits light, say, a flashlight, it gets lighter."
Listen

Running time 2:28


Brian Greene
Brian Greene
Theoretical Physicist
Columbia University

"It certainly is not an equation that reveals all its subtlety in the few symbols that it takes to write down."
Listen

Running time 2:19
Alan Guth
Alan Guth
Theoretical Physicist
MIT

"It's easiest to explain by how things looked from the point of view of Newton."
Listen

Running time 1:46
Tim Halpin-Healy
Tim Halpin-Healy
Theoretical Physicist
Barnard College, Columbia University

"Moving clocks run slow, moving meter sticks are shortened—how does that happen?"
Listen

Running time 2:13


Lene Hau
Lene Hau
Experimental Physicist
Harvard University

"You can get access to parts of nature you have never been able to get access to before."
Listen

Running time 1:09
Michio Kaku
Michio Kaku
Theoretical Physicist
City University of New York

"E = mc2 is the secret of the stars."
Listen

Running time 1:05
Neil deGrasse Tyson
Neil deGrasse Tyson
Astrophysicist
American Museum of Natural History

"It's something that doesn't happen in your kitchen or in everyday life."
Listen

Running time 2:48


Frank Wilczek
Frank Wilczek
Theoretical Physicist and Nobel Laureate
MIT

"Ninety-five percent of the mass of matter as we know it comes from energy."
Listen

Running time 1:01

Text version of audio clips
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Nima Arkani-Hamed (464K)
Janet Conrad (528K)
Sheldon Glashow (820K)
Brian Greene (756K)
Alan Guth (608K)
Tim Halpin-Healy (732K)
Lene Hau (416K)
Michio Kaku (388K)
Neil deGrasse Tyson (880K)
Frank Wilczek (372K)

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