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- From: clw@hprnd.rose.hp.com (Carl Wuebker)
- Date: Sun, 1 Nov 1992 18:35:10 GMT
- Subject: Re: Re: Self charging capacitor ? (No, I don't understand it myself)
- Message-ID: <670019@hprnd.rose.hp.com>
- Organization: HP Roseville Networks
- Path: sparky!uunet!europa.asd.contel.com!emory!swrinde!sdd.hp.com!scd.hp.com!hpscdm!hplextra!hpcss01!hpergfg2!hprdash!hprnd!clw
- Newsgroups: sci.physics
- References: <bernst.719860580@husc8>
- Lines: 21
-
- I've heard of a couple of similar phenomena:
-
- * In the late '60s or early '70s, Popular Electronics had
- an article on an "electret" -- so named because it was
- an E-field version of a magnet. They even had a way to
- make one -- place a voltage between two plates, pour melted
- carnuba wax between them and let the voltage remain until
- the wax had cooled. The resulting "electret" would charge
- up, and you could short it periodically and get a spark.
- I'm not sure how it works -- perhaps polar molecules are
- aligned by the voltage before the wax cools, and naturally
- tend to line up that way afterwards. I guess it could also
- be another "cold fusion"...
-
- * People who fix TVs usually learn early to ground the second
- anode of the CRT while fixing it, because, if left ungrounded,
- the second anode tends to charge up to a painful voltage.
- Again, I'm not sure of the "why" behind it.
-
- Carl Wuebker
- clw@hprnd.rose.hp.com
-