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THE KNOWN UNIVERSE
Tuesday 28 May 2013 at 17:00
Nat Geo HD

Emitting Light

The human eye is tuned in to just a very narrow band of the electromagnetic spectrum. In fact, what we can see is just a tiny fraction of all the light on the spectrum.

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Field Trip Oakland Zoo with Lynn Rothschild

Lynn Rothschild takes us on a field trip to the Oakland Zoo to discuss the diversity of life on o...
(04:00)
LIGO's Joseph Giaime

Joseph Giaime discusses how LIGO (Laser Interferometer Gravitational Wave Observatory) works.
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