On Sat, Mar 31, 2001 at 07:42:39PM -0800, Brandon Macmillan wrote: >=20 > Doug Sutherland wrote on 3/3/01 5:22 pm: >=20 > >James, > > > >> The first idea is to use a=20 > >small sterling engine to run a=20 > >pager motor and generate=20 > >electricity to recharge a=20 > >battery pack. The sterling=20 > >engine is a heat differential=20 > >engine, some of the smaller=20 > >engines will run off the heat=20 > >coming from a persons hand. >=20 > Hi all, long time no type, Im writing this on my 'pseudo' wearable, a= palm IIIc, not close to all the features i want in my final version, b= ut i'm quite impressed with its usefullness and functionality. Hence wh= y i havent posted to the list in so long [but it's nice to read wear-ha= rd on a mobile] I now intend to incorperate the palm in to my rig, colo= r touch screen rules. but back to the energy thing. I'm realy intreaged= by this sterling engine, can someone send me some links=BF How big of = a temerature does it work with=BF Here is what im thinking, use the eng= ine/pager motor combo with your body heat whal wearing it, and when sta= tionary you could whip a fensenl <sp=BF> lense [paper thin plastic magn= ifing glass] out from the back of your lcd screen, fold out some suport= legs to prop it up and focus 12000 degrees of free solar energy onto t= he sterling engine. Will this work=BF >=20 Stirling engines are carnot (heat) engines, and as such, their efficiency goes down as the temperature difference between the in and out goes down, in short, you don't make enough heat to make a decent stirling engine, you'd be better off with a hand crank generator. Or clamping solar cells on your hat... --=20 Jim Richardson Anarchist, pagan and proud of it WWW.eskimo.com/~warlock Linux, because life's too short for a buggy OS. -- Subscription/unsubscription/info requests: send e-mail with subject of "subscribe", "unsubscribe", or "info" toWear-Hard Mailing List Archive (searchable): http://wearables.blu.org please, Please, *PLEASE* don't subscribe through a forward/false domain
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