From: jig_patel email@example.com (jigar)
I am mechanical engineering student . I described one mechanical
engineering situation that is very useful in any kind of mechanical and
energy consumed industries. It it is not even in any applied mechanics
book. I hope you will try to understand it and use it. Plz visit my
hi jigar - have you made a working model of what you are talking about?
as i read this and visited your website, i'm reminded of a similar
situation in the electrical world.
first, i will address the mechanical world. since gravity is equal on
both objects that you are trying to overcome, the use of pulleys will
have to take into the account of coefficient of friction loss by the
mechanics of the pulleys themselves and that is where the rub comes
next, the electrical world - when you have electromotive force (EF)
produced, you will produce a counter electromotive force.
basically, this all goes back to newton's law on equal and opposite
but in the case of the electric world, one can look at this in terms of
a flat nosed barge pushing it's way through water. the faster, it tries
to go, the more of a resistive wave is set up in front of the flat nose
of the barge. this is the opposition to movement of the barge.
reducing the speed, reduces the resistive wave, but still, it will never
be equal, to where you can produce movement without getting some form of
i did see a show where someone supposedly produced a perpetual motion
machine that produced a flash of neon light each time it passed thru the
field to show that energy was being produced, all the while of not
losing motion, but that was 20 years ago and i've not seen this concept
brought forward and developed yet.
so, how does all of this address your pulley system using gravity?
while you might be able to produce on paper - a working model - the real
world has the friction factor to deal with.
to bring this point to light even more so, on paper, cars are
mechanical and suppose to be the same and produced the same and get the
same gas mileage, but we all know that there can be quite a difference
in gas mileage even if the same driver was to drive them. it's in the
make up of the mechanics of the vehicle that makes the difference. why?
because of the energy it took to overcome the resistance of movement.
the opposition to movement - for example - air - remains a constant, so
why the difference in fuel consumption?
this is what mechanical engineering is all about. enjoy your field and
i want to wish you a success in what you trying to accomplish.
knowledge is power - growing old is mandatory - growing wise is optional
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invariably fatal. Prostate cancer is only sometimes so."