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I do know that one of the
showmen of electricity was a guy called Michael Faraday.

From: Jim Purcell <jpurcell@...>
Reply-To: Electronics_101@...
To: Electronics_101@...
Subject: Re: [Electronics_101] Digest Number 134
Date: Sun, 28 Oct 2001 20:43:51 -0600

"J. Pinkston",

Correct me if I'm wrong, but didn't Ben Franklin,

I think Ben's only static generator was out of service when it wasn't raining.
The first capacitors were called Leyden jars, I think that's the name of the
town were they were invented. Even though I taught electronics for seventeen
years we unfortunately had to skip over the wonderful stories of discovery that
used to be part of such courses. They could be inspirational and spark (pardon
the pun) the student's interest because they were about the real world. I can't
even think of which country the town of Leyden is in. I do know that one of the
showmen of electricity was a guy called Michael Faraday. I know he was a showman
because the most often shows him in a very showmanship like pose. Anyway, the
unit of capacitance was named after him, the Farad is one gigantic unit. The
largest capacitor I've seen in terms of capacitance was in the hundreds of
thousands of micro farads. Or say 0.1 to 0.2 Farads.

Maybe it was because it was a static charge, like we get in the winter

from

walking on carpet. I guess I'll have to look back at his experiments.

Exactly, and a charge can only accumulate on/in an insulator.

Jim

When I was reading your reply I saw the name at the end and said, Hey, I didn't
say that.

Jim