Bob Bruninga wrote: > The difference is that going up, you are going slowly in the higher density > atmosphere which is continually lessening as you go up letting you go faster > and faster with less and less friction. THus, no multiplying build up of > friction. > > Bob,
I hesitate to say this, but I'm almost certain that re-entry heating is not caused by friction (well may be 10%). Most reliable sources, NASA included, attribute re-entry heating to shock wave compression of the air in front of the descending craft. Sil ZL2CIA _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
