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([EMAIL PROTECTED] , 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
