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- Newsgroups: sci.physics
- Path: sparky!uunet!snorkelwacker.mit.edu!galois!riesz!jbaez
- From: jbaez@riesz.mit.edu (John C. Baez)
- Subject: Re: Campfire and plasma musings
- Message-ID: <1992Nov7.192607.23040@galois.mit.edu>
- Sender: news@galois.mit.edu
- Nntp-Posting-Host: riesz
- Organization: MIT Department of Mathematics, Cambridge, MA
- References: <74055@apple.Apple.COM> <6NOV199215262053@csa1.lbl.gov>
- Date: Sat, 7 Nov 92 19:26:07 GMT
- Lines: 17
-
- In article <6NOV199215262053@csa1.lbl.gov> sichase@csa1.lbl.gov (SCOTT I CHASE) writes:
- >In article <74055@apple.Apple.COM>, slovick@Apple.COM (Linda Slovick) writes...
-
- >>2.) Is a flame a plasma?
- >
- >Yes.
-
- We went through this once upon a time before and I seem to recall that
- someone said that such a flame (a campfire flame) was a relatively wimpy
- form of plasma. Well, they used a more technical sounding term, but
- what it meant was that the gas was far from fully ionized. I guess
- there is no sharp transition between (ordinary) gas and plasma, the way
- there is between liquid and gas (at low pressures). A really intense
- plasma like near the core of the sun would be just a bunch of electrons
- and nuclei whizzing around like mad. I imagine that in a not-too-hot
- flame, there are a bunch of atoms missing only a few of their electrons.
- Anyone know HOW ionized a campfire flame is?
-