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Re: wind-up wearables

> > Oak Davis wrote:
> >
> > > Tim Gray wrote:
> > > ----- SNIP -----
> > > > I would love to cut my battery pack in 1/2 if I can find an
> > > > alternativecharging system... (Solar panel hats are not socially
> > > > acceptable yet  :-) and winding up the power system might get
> > > > strange looks in the resturant...
> > > ----- SNIP -----
> > > >>From: Christopher Allen <>
> > > >>Yes. From CMU's Metronaut page:
> > > >>"Metronaut could alternatively be powered by a mechanical flywheel
> > > >>converting kinetic energy to electrical energy."
> > > ----- SNIP -----
> > > >>On Thu, 28 May 1998  wrote:
> > > >>http://www.cs.cmu.edu/afs/cs.cmu.edu/project/vuman/www/metronaut.html
> > > >>On Thu, 28 May 1998  wrote:
> > > >>> The Metronaut, presented by CMU at ISWC'97, was a wind-up wearable
> > > >>> computer!
> >
> > <snip>
> >
> > > My point (finally) is that the wind up generator needed to provide power
> > > to a wearable computer would be a lot larger than the batteries it
> > > replaces and would require a lot of cranking. Even if the charging unit
> > > did not have to be attached to the wearable all the time the user would
> > > have to carry it around all the time because of the frequent need for a
> > > recharge.
> >
> > <snip>
> >
> >  First an apology if this response doesn't get routed properly (first
> > attempt).
> >
> > I am not an engineer, but i wonder if using more of the body than just the
> > hands might not ameliorate the tedium of hand crankinging?  For example as
> > one walks ones arms and legs are swinging back and forth, could not some
> > method be developed to use this motion to charge a bateery or capacitors?
> >
> > Just a thought.
> > Abraços,
> >
> > B
> >

Personally, I cant wait to see the idea of a nuclear battery hitting the
civilian market: Imagine a battery the size of a 9-volt cell generating
the necessary curent/voltages needed for an application.... and the best
part of the whole deal is that you wouldnt have to throw the battery
away or recharge it for least 6000 years ;)

-Mike :)+<

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