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KNOWN UNIVERSE

Ancient Mortar

Bryan Penprase discusses the uses of the ancient kivas and what was used for ancient mortar at Casa Rinconada.

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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...
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LIGO's Joseph Giaime

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