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Re: [Amps] "Conventional" current flow

To: Amps group <>, Bill Turner <>
Subject: Re: [Amps] "Conventional" current flow
From: Catherine James <>
Reply-to: Catherine James <>
Date: Mon, 21 Nov 2016 16:06:06 +0000 (UTC)
List-post: <">>

   I'm just repeating what I've seen stated by physicists over decades.  I've 
never seen any hint that gravity waves can travel faster than light.

   Mainstream theory is that all forces are carried by virtual exchange 
particles. Gravity is carried by gravitons, which have not been directly 
detected, but are believed to have well-defined physical properties such as 
zero rest-mass and spin of +2 or -2.  Not all virtual exchange particles are 
massless, but those with mass cannot exist in a virtual state for very long, so 
they can only mediate short-range forces.  For example, the pi-meson or pion 
has a mass of approximately 270 times the electron mass, and it mediates the 
strong nuclear force.  Long-range forces such as gravity and electromagnetism 
are mediated by zero mass particles.

   All particles with zero rest-mass travel at the speed of light at all times 
in all reference frames.  So gravity waves, which are carried by gravitons, 
travel at the speed of light.

   If it turns out that gravity propagates faster than light, it would upset 
all known physical theories.  Not impossible, perhaps, but not predicted by any 
living physicist and would be revolutionary Nobel Prize material if proved true.

Disclaimer:  my formal background is in engineering, not physics.


Bill  W6WRT wrote:
> Being a rather skeptical bunch here, we need a bit more convincing. How do 
> you know?

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