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RE: [RC] The Physics of Weight - heidi> So any body who says "More weight equals
more work as an object is moved. Just Physics, just the facts." doesn't
have a very good understanding of physics.
Bingo. > p.s. Contrary to Heidi's statement, I am
not currently an engineer by trade, although working in an architecture
firm exposes me to them on a regular basis. I am, however, an
engineer by upbringing, and it is the family trade (and has been for
generations).
Thanks for the
clarification. General concept still applies...
<g>
> But I didn't need to dust off my
old physics text books to remember the principles of physics. I
apply them in my daily life when I move a bale of hay. And
because I appear to have a better understanding of physics than a lot
of people here, I was willing to shell out some cash for a dolly so
that I could use the principles of physics to reduce the work
associated with moving heavy objects by increasing their weight.
Since Home Depot does a brisk business in dollys even to patrons
who have never taken a physics class in their lives, you don't have to
crack a physics text book to understand the concept.
Touché. Alas, most folks go about
their daily lives and never think about the principles of physics that
make them able to do things.
And horses are really AMAZING sets of
levers--one of the things that one gets into in the study of
conformation and biomechanics is how different relative lengths of
bones and angles at which ihey interact at joints has a very profound
effect on how well the whole mechanism functions to carry weight over
distance. And even a poorly-conformed horse can propel my weight
over distance with far less work than I can do it, since I am not
anywhere near as efficiently designed for such a pursuit as a
horse.
Heidi
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