Thanks for this steer - great NS article. But can anyone explain this: the cosmos has a horizon too - the boundary from beyond which light has not had time to reach us in the 13.7-billion-year lifespan of the universe.
Does this mean that there is light beyond the edge of the universe's lifespan?
I think I have missed some cosmological fundamental...
Far more information than the last article I read on this subject. Should this be found to be true it could open up some interesting future possibilities for space travel close to the speed of light.
Ah, Mr Bond, what a pleasant surprise. I see you have failed to appreciate that a quantum of time is the Planck length divided by the speed of light. Your death, Mr Bond, will be rather less ... precisely measured. Oddjob, prepare the shark pool!
A blog about, among other things, imaginary ideas - What ifs? and Imagine thats. What if photographs looked nothing like what we see with our eyes? Imagine that the Berlin Wall had never come down. What if we were the punchline of an interminable joke? All contributions welcome.
4 Comments:
At February 09, 2009 4:16 PM,
Anonymous said…
Thanks for this steer - great NS article. But can anyone explain this: the cosmos has a horizon too - the boundary from beyond which light has not had time to reach us in the 13.7-billion-year lifespan of the universe.
Does this mean that there is light beyond the edge of the universe's lifespan?
I think I have missed some cosmological fundamental...
At February 09, 2009 9:52 PM,
Anonymous said…
I'm not even going to pretend i understood a word of that article.
At February 09, 2009 11:41 PM,
rainywalker said…
Far more information than the last article I read on this subject. Should this be found to be true it could open up some interesting future possibilities for space travel close to the speed of light.
At February 10, 2009 12:11 AM,
Mark said…
Ah, Mr Bond, what a pleasant surprise. I see you have failed to appreciate that a quantum of time is the Planck length divided by the speed of light. Your death, Mr Bond, will be rather less ... precisely measured. Oddjob, prepare the shark pool!
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