Stephen Hawking: We must move to another solar system
POSTED BY: Steamer
UPDATED: Saturday, December 2, 2006 19:02
VIEWED: 2672
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Quote:You can only travel to a distant star in six years if it's less than six light years away. But because of the time dilation effects a high fractions of c the on-board time would be significantly less than that of people on Earth.
Originally posted by seryn:
I was very excited by the 'would only take around six years' to travel to the nearest star- I would have thought even with the engines he spoke of, it would be those ships in which the people board and its their great great great great great grandkids who get off.
For a simplified example if you were to leave the Earth and accelerate constantly at 1g on a journey of 100ly it would take 9 years of on board ship time but ~101 years would have passed on Earth.
More insane ramblings by the people who brought you beeeer milkshakes!
No one can see their reflection in running water. It is only in still water that we can see.
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On the subject of extasolar planets.
Here`s a couple of links to give you an idea of what astronomers are currenly able to detect.
http://austral.as.utexas.edu/planets/hd13189/hd13189.html
http://austral.as.utexas.edu/planets/hd37605/hd37605.html
http://austral.as.utexas.edu/planets/hd137510.html
http://austral.as.utexas.edu/planets/gamcep/gamcep.html
Remember,while we are talking here about supergiant planets this is a technology in the very early stages of development.
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Flight Instructor: Son, know what the first rule of flying is?
Me: Don`t crash? 
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Quote:
Originally posted by DonCoat:
There have been some very slick proposals as to how to send the robots, such as laser-driven lightsails and Bussard ramjets (which pull in and compress interstellar hydrogen gas and use it in fusion reactors for propulsion).
Bussard collectors? Hmm, getting Startrek Voyager flash-backs. :)
--
"Mei-mei, everything I have is right here." -- Simon Tam
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Hey I refuse to become excited until my Jetpack and Hoverboard arrive in the post as was promised by scientists all those years ago when I was a kid.
www.cirqus.com
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