Re: Why has no perpetual motion machine been invented?

From: Karl Johanson (karljohanson_at_shaw.ca)
Date: 09/28/04 

Date: Tue, 28 Sep 2004 22:08:35 GMT

"ivan" <ivan'H'older@yahoo.co.uk> wrote in message
news:2ru39oF1emnr5U1@uni-berlin.de...
>
> "Karl Johanson" <karljohanson@shaw.ca> wrote in message
> news:w4k6d.133963$%S.128006@pd7tw2no...
> > <stark_fist_of_removal@the-fastest.net> wrote in message
> > news:1096340102.641712.114230@h37g2000oda.googlegroups.com...
> > > why after so many years of so many people looking has no one come out
> > > with a perpetual motion machine? with all the other acheivements of
> > > mankind! is there some sort of god or gods or entity out to stop it?
> > > how else could we possibly not accomplish it?
> >
> > The commies/government/oil companies/CIA/liberal media/Illuminati have
> > conspired to keep the technology down. But I can sell you the plans to
an
> as
> > yet not working, rough sketch of a conjectured concept for a device with
> > magnets and spinning ball bearings, springs and mouldy cheese, which
might
> > produce unlimited energy in a way that only a sceptic would want
explained
> > in any detail (ignore the power cord attached to it; that's just to get
> the
> > device started, honest). Or, you can read Don's post which covered the
> issue
> > well.
> >
>
> I must confess that I find it all very tantalising that modern permanent
> magnets can attract and repel with such enormous force, and yet can't be
> incorporated into a motor that continues to revolve until the magnetism
> wears out!

For the same reason you can't use the force of gravity to run a perpetual
motion machine. You can extract energy from an object by allowing it to move
lower in a gravity field, but it takes energy to lift something back up
against gravity. If you had a device which lifted things and lowered them
again to extract the energy, which was 100% efficient, you'd break even. As
100% efficiency isn't possible, you'd only lose. We use water moving lower
into a gravity field for power in hydro dams. The reason it's a net source
of power for us is that the sun provides the energy to evaporate it (that
energy comes from fusion), so it can float upwards, then rain down into a
reservoir again. Some power plants do pump water up into hydro power
reservoirs, as a way of storing some power for peak usage times, but again,
it's less than 100% efficient & even 100% efficient would only be break
even.

Karl Johanson

Relevant Pages

  • Re: Why has no perpetual motion machine been invented?
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