TED Conversations

Sean Carroll

theoretical physicist,

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LIVE TED Conversation: Join TED Speaker Sean Carroll

LIVE conversation with cosmologist Sean Carroll, TEDxCaltech Speaker and author of From Eternity to Here: The Quest for the Ultimate Theory of Time.

The conversation will open at 4pm (Eastern Standard Time), May 19, 2011. Sean is on vacation in Las Vagas, and will join us from his hotel room there to discuss the cosmos, the nature of time, and the science of poker.

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Closing Statement from Sean Carroll

Thanks for participating, everyone! I hope some light was shed. It's been a pleasure chatting with the TED community.

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    May 19 2011: wonderful f you to do this..thanks.

    A second is an earth bound measurement..a solar system bound measurement. Why is it we think it is useful to understand cosmology..the age of the universe..its acceleration even the speed of light itself?
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      May 19 2011: Because we hypothesize that the basic laws of physics are the same all over, and then we test that hypothesis -- and so far it's succeeded! The mass of the electron, the strength of gravity, etc. -- these are all things we can measure far away and long ago, and they seem to have the same values that they do nearby.

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