-Original Message-
From: Horace Heffner
> I am curious as to why you think circuits have to be etched? To use
silicon for a solar cell I think it has to be doped, so as to create a PN
boundary. It is the potential drop across the PN boundary that actually
drives a solar cell. The sun "m
Jones,
Thanks for posting that reference! Cool! Actual desktop USB interface
computer laser cutters. And they sell used ones on occasion too.
That stuff reminds me of the liquid sodium silicate I used to play
with as a kid. It was sold under the name "Eisenglass" I think. It
came as a
-Original Message-
From: Ron Wormus
> What I really need is a heater! It's been an unusually cold winter on the
CO front range this year & my gas bills crazy high just to keep this old
place around 60 degrees.
You should never have given up on those fractional hydrogen gas-discharge
tube
Jones,
That would be an interesting project. More than one layer would be needed though & I don't know how
accurately you could align the sheet for multiple passes. I think we will see some of the
commercial panels drop in price.
In our local paper just this last week was an article on leasing
Ron,
You have to wonder - with liquid glass and a commercial laser engraver
(etcher) which is similar to an ink jet printer -
http://www.epiloglaser.com/product_line.htm
and some imagination and metal-coated film, if one could not etch the
circuits with the printer, then coat this film with the
5 matches
Mail list logo
