On Tue, Jul 19, 2016 at 2:35 PM, Gene Heskett <ghesk...@shentel.net> wrote: > And I am not familiar with this foot-poundals per second that you > question about, but just from the wording I'd say it is a fifty dollar > way to say horsepower.
https://en.wikipedia.org/wiki/Foot-poundal > Which is defined in the area of exerting a force > to a 440 pound weight, sufficient to lift that weight one foot in one > second. 1 (imperial) horsepower is 550 (not 440) foot-pounds per second. A foot-pound is the energy transferred by exerting a 1-pound force through a displacement of 1 foot. A pound is the force needed to accelerate 1 pound-mass at 32.174 ft/s**2 (the acceleration of gravity). A poundal in contrast is the force needed to accelerate 1 pound-mass at 1 ft/s**2. A foot-poundal therefore is the energy transferred by exerting a 1-poundal force through a displacement of 1 foot. A foot-poundal is thus (approximately) 1/32.174 of a foot-pound. Multiplying it out, 1 horsepower is approximately 17695.7 foot-poundals per second. Ah, the machinations that users of imperial units have to endure. -- https://mail.python.org/mailman/listinfo/python-list
