----- Original Message -----
From: "Darryl Shannon" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, November 13, 2000 9:59 AM
Subject: Gravity
> Dan wrote:
>
> >It would be better to say that there is a natural upper
> >velocity: c, and that an object will travel this velocity if and only
> >if it
> >has no rest mass. Photons are the only known particles with zero rest
> >mass.
>
>
> I can never remember if neutrinos have non-zero rest mass. Has it been
> conclusively shown that they do? Or is just very likely that they do?
> Or is it likely that they don't?
>
> I was always under the impression that neutrinos traveled at c, has
> that been shown to be wrong? Or is our technology for observing
> neutrinos so poor that we can't say for sure?
>
Maybe I'm screwed up here (again), but dont all the carriers of force
*operate* at c. photons, gluons..ect. And arent neutrinos part of the
exchange of forces in some respect?
Damn, I have such a hard time remembering the small amount of physics I have
been exposed to.
xponent
rob
