Friday, August 31, 2007

A Wrinkle in TIme Travel?

Time travel of any sort is a long way off, if it can be done at all. Still, it's intriguing to read that theoretical physicist Amos Ori at the Technion-Israel Institute of Technology thinks he's found a way to do it that just might, eventually, be practical. To vastly oversimplify: If space-time could be curved into a donut-shaped hole by extremely strong gravity fields, one could create a situation where time becomes a closed loop, and you can travel back in it. It will be generations before humanity masters such ability to manipulate gravity, and there's no way to be sure we ever will. This concept does explain why, if time travel is possible, we have yet to meet a tourist from the future. The theorized machine will not let you travel back into the time before the machine was created.

1 comment:

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