[ExI] Power satellites

[Stefano Vaj]

On Sat, May 2, 2009 at 6:53 PM, Eric Messick <eric at m056832107.syzygy.com> wrote:
> Well, actually there is an absolute physical limit.  Get the mass of
> the 'planet' up high enough, and you get an event horizon.  I'll
> admit, the limit is pretty far from where we are, but it is there.

Yes, this also came to my mind. But even much below that limit, can we
actually lift wood to orbit by making use of the energy that can be
extracted by burning it, if we are not concerned with the relative
size of the payload? :-/

-- 
Stefano Vaj