ExaminationBig6909
ExaminationBig6909 t1_j1uvek5 wrote
Reply to comment by nickh84 in Meet the amateur astronomer who found a lost NASA satellite by jarvedttudd
You keep using that word, I do not think it means what you think it means.
ExaminationBig6909 t1_j1uldm5 wrote
Reply to comment by nickh84 in Meet the amateur astronomer who found a lost NASA satellite by jarvedttudd
It's not arbitrary, exactly. The Karman line is a theoretical point at which the atmosphere is so thin that you won't get lift from a wing. So it's a point where airplanes cannot reach.
(Also, the original calculation was for 80 km, which is used by the USAF for the boundary of space.)
ExaminationBig6909 t1_j1xk9ql wrote
Reply to comment by nickh84 in Meet the amateur astronomer who found a lost NASA satellite by jarvedttudd
All right. What's the difference between 79 km and 80?