time travel

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documentary science

The Fabric of the Cosmos – The Illusion of Time

by voemhealthAvatar of voemhealth May 4, 2012 Comments Off

Time. We waste it, save it, kill it, make it. The world runs on it. Yet ask physicists what time actually is, and the answer might shock you: They have no idea. Even more surprising, the deep sense we have of time passing from present to past may be nothing more than an illusion.

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philosophy video

The Grandfather Paradox – 60 Second Adventures in Thought

by voemhealthAvatar of voemhealth February 25, 2012 Comments Off

The grandfather paradox is a proposed paradox of time travel first described (in this exact form) by the science fiction writer René Barjavel in his 1943 book Le Voyageur Imprudent (Future Times Three).[1] The paradox is this: suppose a man traveled back in time and killed his biological grandfather before the latter met the traveler’s [...]

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