Tim Little wrote:
> On 2008-03-08, Tux Wonder-Dog <wes.parish@[EMAIL PROTECTED]
> wrote:
>> ... with a superterrestrial you use up three stages just reaching
>> the upper reaches of the atmosphere, never mind orbit.
>
> Greater gravity will reduce the scale height, so that the top of
> atmosphere is much closer to the surface. The upper atmosphere will
> not be much less accessible than Earth's.
Thanks. But, on the other hand, any given mass will weight much more, and
the energy extractable from any given chemical reaction will still be the
same. So it will take more energy to move any given mass a lesser
distance, thus more mass to move the same amount of mass. Ergo the three
stages to reach the upper reaches of the atmosphere, whereas in the
(relatively) benign Earth situation, three stages will take you into
orbit.
Just my 0.02c
Wesley Parish
>
> Yes, orbit could be much more of a massive pain.
>
>
> - Tim
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