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Music
Roger H. Brown to Step down as President in 2021
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DDF
October 17, 2019
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Science
Vote!
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DDF
November 6, 2012
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Science
The Arrow of Time feat. Sean Carroll
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DDF
November 13, 2011
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Science
GPS, relativity, and nuclear detection
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DDF
November 7, 2011
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Science
How to break the speed of light
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DDF
October 30, 2011
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Science
The Speed of Light in Glass
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DDF
October 24, 2011
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