Michel Jullian wrote:
>
> ----- Original Message ----- 
> From: "Frederick Sparber" <[EMAIL PROTECTED]>
> To: <[email protected]>
> Sent: Friday, April 14, 2006 6:27 PM
> Subject: Re: Electrogravity & Proton Repulsion of Electrons
>
>
> > One Microvolt in experimental error means 593 meters/second
> > delta v in electron velocity.  No?
>
> Er, why Fred? I thought we were measuring times, not voltages? 
> 
The gravity upward repulsive force (if it exists) would give an electron 
an upward force F = mg = 9.1e-31 kg*9.8 meters/sec^2 = 8.9e-30 newtons.
Velocity = vo + 9.8 * t
Distance S traversed = vo + 1/2 * 9.8 * t^2
So, to keep the chamber in the one to two meter length.
For 1 = vo + 9.8*t^2  for vo = 0    t = 1/9.8)^1/2 = 0.319 seconds
or 0.452 seconds for a two meter tube.
Thus velocity  v = vo + 9.8*t  cannot  be over ~ 3.2 meters/second.
A Femto-Coulomb range Electrometer can detect 65,000 electrons
or more trapped on a plate (saucer) in a faraday cup.

http://www.keithley.com/products/locurrhiresist/electrometers?mn=6517A

> 
> A time 
> difference in my last proposal, but admittedly I haven't done any error 
> analysis, it just looked sound to me to only look for a time difference 
> proportional to the effect.
>
Not an easy task, huh?
>
> >
> > I vote for a vacuum version of Stokes' " upward aerosol settling 
> > velocity".
> > :-)
>
> Well, it's your Thought Experiment ;)
>
Cheaper than those Keithleys and a vacuum system.  :-)

Fred
>
> Michel
>



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