From: UFO UpDates - Toronto <post.nul> Date: Tue, 13 Dec 2011 17:59:55 -0500 Archived: Tue, 13 Dec 2011 17:59:55 -0500 Subject: The Trouble With Time Travel Source: NewScientist.Com http://tinyurl.com/czsvn6q 12 December 2011 The Trouble With Time Travel Physics indicates it may be possible to go back to the future, and in How to Build a Time Machine, Brian Clegg argues that it's never too early to prepare AT 10 pm on Saturday 7 May 2005, some 400 people waited at the Massachusetts Institute of Technology for some very special guests to arrive. Time travellers from any and every point in the future had been invited to join the party in Cambridge. "The idea was a simple one that might at first seem trivial but was, in fact rather clever," Brian Clegg explains in How to Build a Time Machine. "If time travel is possible, why not flag up a certain place and time in history and invite time travellers to attend?" The organisers had tried to ensure that the relevant information seeped into the future, and hoped a combination of internet, print media and TV coverage would do the job. How could any curious, party-loving time traveller resist? The no-show raises a simple question about the possibility of travelling back in time. We may not yet have the technology to move freely through the ages, but if time machines are going to be built at some point in the future, why hasn't anyone come back to visit us? According to the theory of special relativity, as one moves faster and faster and approaches the speed of light, time slows down. At the speed of light, time stands still. If one could go faster than light, then in principle it is possible to travel back in time. So, Clegg asks, "Where are the time travellers?" [More at site... thanks to 'The Norm' for the lead] Listen to 'Strange Days... Indeed' - The PodCast At: http://www.virtuallystrange.net/ufo/sdi/program/ These contents above are copyright of the author and UFO UpDates - Toronto. They may not be reproduced without the express permission of both parties and are intended for educational use only.
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