"Jesse Mazer" wrote in message
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FrediFizzx wrote:
"Jesse Mazer" wrote in message
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| Franz Heymann wrote:
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| "Jesse Mazer" wrote in message
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| Franz Heymann wrote:
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| "Jesse Mazer" wrote in message
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| I wrote:
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| Well, you're thinking about it wrong. It would be possible
to
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| choose
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| units of mass such that the gravitational constant G was
equal to
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| 1,
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| but that wouldn't make it any less real as a physical
| constant--similarly, in cgs units, the basic units of charge
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| (emu)
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| Sorry, that should be esu...emu is the unit of magnetic
charge in
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| cgs units.
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| You might know what you were trying to say both in the
original
| statement and the correction.
| I doubt if anybody else would.
| Comment on this garbage, for instance
| "emu is the unit of magnetic charge in cgs units"
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| OK, magnetic moment, I confused my terms, Jeez. I think you
know
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| what I
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| meant.
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| No. I had not the foggiest notion. I still do not know what
you are
| trying to say.
| How about being effective by giving a complete sentence with the
| phrase "magnetic moment" in its apropriate place.
| If I were to just replace "magnetic charge" by "magnetic
moment",
the
| sentence would still be garbage, so I feel sure you must be
meaning
| something else.
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| Franz
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| You think the sentence "emu is the unit of magnetic moment in cgs
units"
| is garbage? Have a look at this page:
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| http://www.unc.edu/~rowlett/units/cgsmks.html
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| It says that emu is the unit of the magnetic dipole moment in CGS
units,
| and that the conversion from CGS to SI is 1 emu = 0.001
Ampere*meter^2.
It is wrong. An emu is a unit of current. It is equal to 10
ampere SI.
FrediFizzx
Well, it's possible you're right since I don't claim to be an expert
in
unit systems, but do you have a source for that? The website above
comes
from a professor of mathematics at the University of North Carolina
at
Chapel Hill, so it seems pretty credible.
I am (was) an expert in the field, having taught E&M for more than a
decade and having performed electrical and magnetic calculations for
sixty years.
Freddi is as wrong as you were. The emu is the name for a complete
set of units for all electrical and magnetic quantities. Quite
analogous to saying that the SI is a complete set of units.
Franz