ORIGINAL: ajenkins
snip> So to go back to the "balancing a marble on a sheet of glass" analogy, for micro helis it's as if your kid brother were standing nearby randomly tapping on the sheet of glass from time to time while you're trying to keep the marble still.
Soo right. Darn that kid anyway.
and throw in those random fluctuations in gravity, and there you have it...
Did you see that photo of the guy riding a unicycle while flying a heli? I'll bet he was chewing gum, too.