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Re: A Puzzle [ coulomb ]
From: bmack[SMTP:bmack-at-frontiernet-dot-net]
Sent: Tuesday, September 09, 1997 11:37 PM
To: Tesla List
Subject: Re: A Puzzle [ coulomb ]
>
>
> From: DamDeName-at-aol-dot-com[SMTP:DamDeName-at-aol-dot-com]
> Sent: Monday, September 08, 1997 7:16 AM
> To: tesla-at-pupman-dot-com
> Subject: Re: A Puzzle [ coulomb ]
>
> In a message dated 97-09-08 03:00:18 EDT, you write:
>
> << 9/7/97
I've got to say that This coulomb thread has got me wondering
what this is all about.
So far I agree that is a unit of standard measure much like the volt.
Any physics text will state that 1 electronic charge=1.602x10^--19 coulomb
and one ampere=1coulomb/sec, etc.
If this is not a physical constant, then our whole system of measure is
a moving target and meaningless!
Upon checking various reference books on hand, I find no mention
of a separate definition for the coulomb nor any caveat about its
suspected inaccuracy.
Futhermore, I'm not a PHD in physics, but to the best of my knowlege
Cavendish was best known for his gravity experiments-not electrostatic
measurement. The only connection between the two (as far as I know)
was the experimental method-namely the torsion balance.
Please enlighten me!
Jim M
> snip
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> >
>
> >
> >snip
> >
> >!
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>
> No, Ed. An ES coulomb is not the same as an EM coulomb. In the mad
> rush to systemitize, unitize and find intercovertibility of all
> physical forces by turn of the century electricians, a very flawed
> experiment was devised to determine the coulombic relationships of EM
> and ES forces. Briefly, EM force in Newtons between two parallel wires
> with a constant current flowing in them was compared to ES force in
> Newtons in the Cavendish experiments. The results were announced to
> the world and of course this relationship became carved in stone. It
> was a big mistake though because the experiment isn't capable of
> establishing this relationship. The results are several orders of
> magnitude in error.
>
> This is not particurally new news. But maybe it is important news to
> some members of this list. I suggest you and others who are interested
> consult the archives for posts on this subject about one year ago.
> Also see HVlist archives.
>
> RWW
>
>
>
> >>
> Hi all---
>
> I'm a bit confused here also -----
> Def. --- coulomb -- "handbook of chem & phys "
>
> " A unit quantity of electricity . It is the quantity of electricity
> which must pass
> through a circuit to deposit 0.0011180 grams of silver from a solution of
> silver
> nitrate. An ampere is one coulomb per second. A coulomb is also the
> quantity of electricity on the positive plate of a condenser of one
> farad capacity when the electromotive force is one volt ."
>
> so ---- ummmmmm
>
> regards,
> Sandy
>
>
>