Re: [GZG] Satellite imagery

> So, if your target is at a fixed longitude, very low latitude, and
your
> optics are excellent, then geosynchronous orbits make sense for this
role.
> 
> For Earth's orbit at the extreme end of the visible spectrum (400 nm)
you
> would need a ~8.75 m diffraction limited telescope to get 2 m
resolution
> (which is pretty poor.)
> 
> Maybe there is some way to PSB all these considerations (and any I've
> missed) away.  I just don't see them ;-)
> 
> Cheers, Tony C.

Gravitic lenses for light focusing. I think that was the PSB Traveller
used
to explain how a ship-mounted laser could cut through another ship at
five
light-seconds without an emitter 100 meters across ;-)

Cheers,

M.
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