James, > The first idea is to use a small sterling engine to run a pager motor and > generate electricity to recharge a battery pack. The sterling engine is > a heat differential engine, some of the smaller engines will run off the > heat coming from a persons hand. Interesting. > Ive seen some mention of using solar cells but I might be able to suggest > a somewhat cheeper alternative. A couple of months ago I recived a small > book with plans for creating solar cells based on copper instead of > silicon for mere pennies (the cells, not the book). I am doubtful that either of the above will produce enough juice to charge the types of batteries used in yer typical wearable. Notice how the AC/DC adapters for laptops are usually around 15-18 volts and 2-3 AMPS! You'd need a pretty big sombrero of solar panels, might be difficult to get through doors. And if you can gen that kind of power from my hand or cupo java I'd be quite impressed. Maybe this would work for a microcontroller based wearable drawing 20mA, but doubtful that it would power a pentium. BTW crackpot whackos are welcome here. I'm one of them and damn proud of it. Who wants to be normal? -- Doug -- 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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