Quote:
Originally Posted by kenchan
plus relying on some guy up in the air (chopper, cesna, blimp, hot air balloon, 747) pushing a stop watch... how accurate can that be?
not very
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Oh, you hadn't heard? Going to the police academy instantly makes you better at even the most mundane tasks!
Seriously though, I believe they have some sort of mechanism to account for that. I think they record your "speed" across multiple sets of markers, and average it. That should take out much of the "error".