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lacamu

Re:Drones With an Eye on the Public Cleared to Fly on Sunday February 19, 2012 @02:11AM (#3608847)
Hell, it's the 21st century now, I'll use Google:

"700 foot-pounds = 9.49072564 × 109 ergs"

Somehow I don't think that helps. Are you happy now?

Re:Drones With an Eye on the Public Cleared to Fly on Saturday February 18, 2012 @02:58PM (#3607574)
OK, I guess I wouldn't mind having dropped on my head a 4.4 pound drone traveling, hmm, approximately:

sqrt(2gdistance) = Sqrt(232.3(400 feet)) = 160 f.p.s.

with about 160 fps * 4.4lbs = 700 ft-lb of energy

!!! Well, maybe not!