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Re: some of the reason why energy and power definitions areconfusing
Original poster: "Harold Weiss" <hweiss-at-new.rr-dot-com>
The horsepower unit came from Shetland ponies working in the mines. I have
seen draft horse pulls, and a pair of Belgins can put out 44HP or 22HP each.
A Morgan can put out around 7-8HP. Horses are always stronger than they
David E Weiss
> Original poster: DRIEBEN-at-midsouth.rr-dot-com
> John, Al, all,
> It has been my understanding that the "horsepower" unit was
> originally derived from the rate of work that an average work
> horse could put out for 8 to 10 hours a day, like pulling a
> plough. I suppose this was suppose to represent the work out-
> put of an average healthy, middle aged adult horse, but of
> what particular breed of horse, I don't know. I'm no equestri-
> an expert, but I do know that there's a significant difference
> between the size and strength of a Shetland and a Clydesdale!
> So is it Shetland HP or Clydesdale) HP ;^/?? "I" would tend
> to think somewhere in between.
> I guess once industrialization took affect, the horse power was
> a well-known albeit ill-defined unit that most people were fa-
> miliar with. As to how the exact 746 watt (550 ft/lbs per second
> or 33,000 ft/lbs per minute-kinetic measure) unit was derived as
> the standard "horsepower", I have no idea. Maybe a Google search
> would reveal more. BTW, "human" power is supposed to be about
> 1/8 to 1/10 of a HP, so I suppose that's about 75 to 95 watts?
> But is that the strength of an "average" 150 lb. man or a 250
> lb. body builder ;^)))))
> David Rieben
> > >
> > >Al Erpel
> > I've had the same issues twisting thru my mind, especially with
> > one
> > horsepower equalling 746 or whatever, watts. Who in the hell came
> > up with
> > that one? And how do you prove it? Small horse, medium horse?
> > What if we
> > want to use camels? How many watts per bactrian? There are a few
> > problems
> > with the way science has been taught but we tend to build upon
> > what is 'known'.
> > For coiling, we need our own specific definitions. I mean math is
> > math and
> > we should all be capable, perhaps better than most but these
> > issues of what
> > is what is driving all but the highly educated out of the
> > conversation, and
> > most likely some of them as well. We need some 'rock-solid'
> > definitions,
> > specific to this art, that all can build upon. Anyone else see an
> > evolving
> > art here?
> > I'll not pretend to be even vaguely qualified to set these out but
> > I can
> > sure incorporate them into my work and thinking, once defined.
> > Drizzle, Drazzle, Druzzle Drone, Help Mr. Wizard! Where's Antonio
> > on this one?
> > John