NOVA: Time Travel

11:07 Feb 20th, 2012 | 8 notes

  • Sagan on Time Travel
    Listen to the late astronomer and Pulitzer Prize-winning author’s insightful and delightfully droll views on everything from wormholes (“very Alice in Wonderland”) to the nature of time (“one of those concepts that is profoundly resistant to a simple definition”). (text and RealAudio)

  • Traveling Through Time
    In this excerpt from his 1998 book Time: A Traveler’s Guide, Clifford Pickover, an IBM researcher and science writer, declares that “time travel is possible.” Find out why he is so sure.

    • #Time Travel #Einstein #Carl Sagan #Nova
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