Re: [curiosa] Re: Debian Centre of Mass
On Mon, Jul 09, 2001 at 12:11:56PM +0200, Philipp Meier wrote:
> On Mon, Jul 09, 2001 at 11:57:33AM +0200, vdongen wrote:
> > Kelvin is based on the kinetic energy, which is 1/5 mv^2.
> > to get a negative K you need a negative m since a negative v will also
> > result in a positive kinetic energy.
> > Since anti-mass has been proofed, negative K is possible without
> > Irrational numbers or complex numbers.
>
> Does anti-matter really has m < 0?
No, it still has positive mass. Mass is unlike other particle
properties, in that antiparticles still have the same amount, instead
of the negative amount. Negative mass <-> negative energy, and all
particles, anti or not, have positive energy. (some have zero rest
energy, like the photon, but they cease to exist if they ever stop
moving.)
I read something about relativity and negative energy, and how lots
of it would be needed to keep a wormhole open. Weird stuff... I
don't know if anyone has shown that negative energy can't exist.
--
#define X(x,y) x##y
Peter Cordes ; e-mail: X(peter@llama.nslug. , ns.ca)
"The gods confound the man who first found out how to distinguish the hours!
Confound him, too, who in this place set up a sundial, to cut and hack
my day so wretchedly into small pieces!" -- Plautus, 200 BCE
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