On Fri, 15 Apr 2005, Erik Holmes wrote: > > http://en.wikipedia.org/wiki/Antimatter > Guys. We could write pages trying to explain Antimatter and Antimatter theory. I was just giving a > really brief description of Antimatter as I once saw it explained somewhere else. I know it's > extremely complicated but to quote the very page that Dave gave a link to: > > "For each kind of particle, there is an associated antiparticle with the same mass but opposite > electromagnetic, weak, and strong charges, as well as ***_spin._*** " You're referring to http://en.wikipedia.org/wiki/Antiparticle I see. But you can't believe everything you read on the web, even from wikipedia. Electrons have spin 1/2; positrons have spin 1/2. As noted in fact in the table at the end of the antiparticle link.