[extropy-chat] stardust at home

[Russell Wallace]

On 1/22/06, spike <spike66 at comcast.net> wrote:
>
> Oops I goofed this.  The earlier calc assumed conversion
> of energy of the photons, but the description of the
> method (reflecting photons westward) is a conservation
> of momentum technique.  So assuming the mirror reflecting
> westward notion, it would take ~700 billion years to
> spin up the earth to a milliradian per second.  We don't
> want to wait that long.  So we still need to convert
> solar energy into some form suitable for hurling mass
> westward, as opposed to simply reflecting photons out
> that way if we wish to achieve the 90 minute day.


That's going to waste a lot of energy; why not just use mass drivers to
disassemble the planet?

(Actually I think Earth should be kept the way it is, but there are lots of
dead planets and moons to disassemble.)

- Russell
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