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Perhaps I say it as should not, but that is oversimplified to the point of inaccuracy. Joel Send a noteboard - 15/10/2012 11:16:50 PM
First, really consider how massively HUGE Earth is...

...and yet, its gravitational force is countered and its acceleration record broken by such pitiful creatures as us everyday without the slightest wonder that it should be possible.

An entire Earth's worth of gravity is still a real wimp.

Jumping on trampolines or boarding airplanes cannot overcome Earths gravity, after all. It takes a LOT of force for even small amounts of matter to escape the planet. Even the shuttle could not; rather than humans overcoming Earths gravity "every day," we only had that ability for the six years or so the Saturn V was in service.
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This message last edited by Joel on 15/10/2012 at 11:28:32 PM
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Science Question - 13/10/2012 09:01:08 PM 614 Views
In general, effects of gravity on a nanoscale system are negligible. - 13/10/2012 09:54:50 PM 458 Views
To get an intuition of how weak gravity is... - 13/10/2012 10:33:14 PM 408 Views
Perhaps I say it as should not, but that is oversimplified to the point of inaccuracy. - 15/10/2012 11:16:50 PM 512 Views
What channel was this on? - 13/10/2012 10:44:29 PM 419 Views
It was an episode of Nova from PBS - 14/10/2012 06:50:24 PM 547 Views
thanks all (and some more Qs) - 14/10/2012 07:30:04 PM 424 Views
You're welcome and some more A's - 15/10/2012 01:40:01 AM 448 Views
Then I have another question - 16/10/2012 05:52:33 PM 417 Views
You can rest easy. - 16/10/2012 08:46:37 PM 454 Views
the part that bothers me actually is - 16/10/2012 11:16:04 PM 381 Views
He's talking about the Andromeda Paradox - 17/10/2012 07:11:01 AM 394 Views
well, I feel a bit better LOL - 17/10/2012 10:58:18 PM 383 Views
Re: well, I feel a bit better LOL - 18/10/2012 04:06:26 AM 390 Views
I saw Brain Greene speak last year. It was pretty cool. - 16/10/2012 04:15:00 AM 587 Views
only two scientists I'd like to meet more - 16/10/2012 05:53:20 PM 410 Views

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