Well having played Kerbal Space Program for the last couple of years, I discovered that the whole orbital dynamics thing is counterintuitive. If you slow down a spacecraft, it just puts it into a higher orbit (so, further away from the Earth). If you speed up the spacecraft then it reduces the orbit (thus bringing it closer to the Earth). This is what makes rendezvous between 2 spacecraft in orbit so tricky, because things work in the opposite way to what you would expect.
Paul
Biting the hand that feeds IT
