gerbil

The guy is Swedish, i.e. English is not his native language, so you can forgive him for grammatical errors. One thing he does though is figure out how much fuel would be needed to slow down something like a space shuttle. Instead of calling the guy names, and engaging in rhetoric, show that his calculations are wrong. See near the bottom of http://heiwaco.tripod.com/moontraveld.htm where he shows the math: I haven't been able to find a derivation of this kind anywhere else on the web. So there's the challenge: prove it incorrect. Anybody? (without name-calling, please!)