In message , Chuck Stewart
writes
On Thu, 28 Aug 2003 21:23:37 +0100, Doug Ellison wrote:

"Paul F. Dietz" wrote in message
...
Doug Ellison wrote:

Really? You could fill all that space with foam with zero mass?

Foam that would tolerate being in contact with white-hot RCC
material, no less.

Forgot that bit

Foam that has zero mass, enormous heat resistance, is flight qualified, will
not outgas on orbit, and will make you coffee in the morning

Aha!

Aerogel!

Aerogel just like those used in insulating blocks on the Mars
Sojourner Rover!

Aerogel stripped from a Rover is ust the ticket... aerogel filler
will have next-to-zero mass, heat resistance, is flight qualified,
will not outgas on orbit, and the Rover can make you coffee in the
morning.

Structural strength?
--
"Forty millions of miles it was from us, more than forty millions of miles of
void"