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Old 22-06-2011, 12:49 PM
Rob_K
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Join Date: Oct 2006
Location: Bright, Vic, Australia
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Quote:
Originally Posted by avandonk View Post
A last thought. Even if time travel were possible how would you navigate spatially. The Earth rotates goes around the Sun goes around the Galaxy is moving etc. Where were you even ten minutes ago relative to the 'fixed' Quasars.


Bert
Go Time Team! You wouldn't have to navigate. Just a limitation on how far you could go back so you're still within the Milky Way, as it rotates and is moved by local gravitational forces. Breadth of the MW might be accommodating but the thickness is a worry - but I refuse to let that get in the way of a fight of fancy!

In effect, wind time back till a suitable planet/system occupies the space in the vicinity of where Earth is now. Parsec or two'll do! Ignore the expansion of the Universe as all parts are expanding equally (is your starship smaller when it materialises?). If at the end you still need to travel a fair way, stop off a few times for the odd gravitational slingshot from serendipitously passing bodies to build up the speed. You'd hit the ground running and be there by dinner time. Provided you didn't materialise next to an outbursting nova, or in the line of a GRB or have a sputtering comet sitting on the starship bridge, or....

Anyway, rubbish aside, an interesting discussion guys, lots of good points! But I don't see a lot of discussion about the social aspects of maintaining a seed colony in some sort of order and purpose in close confines for perhaps millenia (other than freezing everyone for the duration, or taking the bits). Do you think it would it be possible?

Cheers -
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