On Thu, 11 Jul 2002, Yossi Preminger wrote:
> I've always thought an Enzmann ship uses a ball of heavy water ice,
> maybe with some hydrogen slush.
> I can't believe anyone ever thought solid hydrogen would be strong enough.
It was supposed to be a ball of deuterium ice, as I recall. Heavy-water
ice wouldn't be worth the trouble -- even D2O is 80% oxygen by mass, you'd
be better off with liquid deuterium in a tank (or a cluster of tanks if
you want damage tolerance).
> PS Danger, danger, we're veering off topic ....
Well, if PROTO can't quite achieve the necessary mass ratio for orbit, we
could cram a little more in by using D2O2 rather than H2O2... :-) :-)
Henry Spencer
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