Subject: Re: semi-perpetual motion

From: Steve Brown <[email-masked]>
Date: Thu, 25 May 1995 22:08:27 GMT

I believe that J Eyer and Tom Gray have overlooked the fact that vehicles
are pulled downhill by gravity - a free energy source.

Take for example the electric bikes with alternators to allow
not only the charging of the batteries while the cyclist peddles
but also during downhill travel.

Steve

On Thu, 25 May 1995, J Eyer wrote:

> >Marge Wood asks:
> > > why couldn't the wind rushing past the vehicle
> > > be funneled into something with a blade hooked to a battery?
>
> Tom Gray Responds:
> >Although it is not intuitively obvious, Marge, this is a perpetual
> >motion thing.  You can't capture enough energy to make up for the
> >additional drag on the vehicle that whatever structure you design to
> >extract the energy creates.
>
> Nice response Tom.  If it of interest, I had many opportunities to
Re: semi-perpetual motion                                                    R

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From: [email-masked] (DaveHatunen)
Date: Thu, 25 May 1995 22:50:46 GMT

In article <[email-masked]>,

>are pulled downhill by gravity - a free energy source.

You're joking, right? You really do know that all you're getting is the
energy it took to get up the hill, right?

>but also during downhill travel.

Now I know you're joking. You've got to know that the energy to run the
alternator comes from the energy the bicyclist used to climb the hill.
Or, on level ground, that the bicyclist is supplying the energy for the
alternator.

-- 

    ********** DAVE HATUNEN ([email-masked]) **********
    *     Daly City California: almost San Francisco      *
    *   but with parking and lower car insurance rates    *
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