Robert Seeberger wrote:
...
> > > One way to make solar cells more efficient is to find a material
> that
> > > will capture energy from a large portion of the spectrum of
> > > sunlight -- from infrared to visible light to ultraviolet.
> > >
> > I don't think this is _the_ problem for groundhogs. The problem
> > is [or was?] that the cost to assemble a solar cells is higher
> > than the cost of the energy it produces. So it's economically
> > viable to put solar cells in satellites, but nothing else.
> >
>
> I don't think that is true anymore. You can see solar cells in
> applications out on the street these days. A good example is the
> "School Zone" flashers (Hush Ronn! <G>) where using a solar panel to
> charge a battery is almost universal around here.
Satellites, flashers, what's the difference? If it takes too
long an extension cord to get power to it, the device should
make its own.
---David
Lights by the side of the front walk, Maru
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