Re: [CAD_CAM_EDM_DRO] Re: relay help req. (horsepower definitions)

Watt needed a means of selling his steam engines to people who didn't
understand anything about these new-fangled contraptions. They did,
however, understand what a horse was. So, Watt took a horse and then
underated it. If his engine was rated at 10 horsepower than it would easily
do the work of 10 horses. In fact 10 horses would be incapable of doing the
work of one of his 10HP engines, so he was on to a winner.

>I'm with you there Jon....you'd need at least a 40 Amp breaker to provide 6
>HP.
>
>As for the HP formula developed by Watt...IMO that was one of the stupidest
>formulas ever developed.
>How big and what kind of draft horse was used...large/small
>Clydesdale...Percheron...or ???
>Did he make that horse move 33000 pounds per foot per minute all day long or
>just for a limited time...like say for only a minute?
>How many times did he perform the test? How many horses did he use? ETC.
>
>Not only did he develop his formula based on an arbitrary horse selection,
>he didn't even have enough sense to use more manageable figures...like say
>500 pounds per sec or 30000 pounds per minute...which would make
>calculations a whole lot simpler.
>
>As for lifting 33000 pounds....any horse can do that...just use enough
>rope/cable and pulleys. Doing it so as to move the load
>
>How those shyster sales people come up with the inflated figures is probably
>something like what I learned in college once. Based on "instantaneous"
>loads, it can be done. What is necessary is to determine at what point (in
>time) the resistance in the motor is at it's lowest point. At that
>particular instant, apply the current at it's maximum voltage (based on the
>sine wave of the applied voltage). It's abaolutely amazing how much useable
>values can be distorted in this manner!
>
>In fact, this is (according to my old instructor) is one of the reasons
>light bulbs burn out....too much voltage/current applied at the wrong
>instant of time.
>
>Smoke
>
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