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

----- Original Message -----
From: <ballendo@...>

<big snip>
> Finally, if we have a spindle turning at 20,000rpm and we imagine
> wrapping a string around it and lifting some reasonable small weight
> a certain distance in a second: then we 'simplify' the numbers using
> 550 ft.-lbs./second as the horsepower definition; we discover there
> is no dishonesty involved only an update of the way horsepower is
> determined...

Ballendo;

550 ft.lb/s can be obtained by multiplying 550lb times 1ft/s or 1lb times
550ft/s. Power, as you correctly stated, is an expression of work done per
unit time. However, twisting equations around (for marketing purposes)
requires breaking the rules of mathematics that are not generally considered
refutable.

Marketing types see us tech-heads as stubborn in our refusal to comprimise
on "simple" issues (like whether or not one HP equals 746W), whereas we see
them as dishonest in their willingness to redefine or blatantly ignore the
laws of physics for purposes of gain. This is one reason why corporate
engineering and marketing divisions are traditional enemies.

I am reminded of a comic strip that ran in an ASME publication years ago:

(from dull memory)
Marketing guy: So how's the X000 project coming Art?
Art: Given marketing's design parameters, it's physically impossible.
Marketing guy: So when can we expect the beta?
Art: I just told you, given marketing's design parameters, it's physically
impossible.
Marketing guy: Don't bother me with details Art, I'm a big picture man. When
can we expect the beta?
Art: As soon as I morph into another life form.

Doug;)