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Re: Speed Of Light Comunication

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Posted by Dave on March 3, 2000 10:40:55 UTC

: Lets say that they had invented a way to go at the speed of light. : Now lets say that theres earth and very far away there's planet X. : It takes 10 days at the speed of light to get to planet X from Earth. : Explorers go to planet X and set up a colony. : Then Earth wants to send them a message by ship. : But the message would obviously be pointless considering that a century has gone by. : Ok lets say now that the message didi get to the colony wanting them to come back to Earth. When they leave for Erth and get there a century has gone by on earth. If the message was urgent then they would be to late for the message to mean anything.

: MY question is how will they get the message there with it making sense. : And how will they get back in time for the message to make sense. :

The message can arrive within ten days of the decision to send it, and relatively speaking, it should be relavant. If it was decided, that after a century has passed on earth, that earth wishes to send a message, it would still only take ten days to arrive. Suppose that Captain Smith forgot jis lunch bag, and earth sent him his lunch an hour after they left. The sandwich would arrive 1 hour after Captain Smith set foot on the new colony, and it would be fresh. Of course, if Captain Smith then sent a reply and asked for some mustard, he might wait some time, and he'd be better off eating the sandwich without condiments.

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