Re: SPACE: New propulsion technologies

Anders Sandberg (
16 Aug 1999 14:28:15 +0200

Ron Kean <> writes:

> When you say that 'Every particle has an anti-particle...', do you mean
> that there are equal amounts of matter and anti-matter?

No, locally (i.e. the known universe) there is much more matter than antimatter - why is one of the big questions in cosmology.

Every kind of particle has a corresponding antiparticle - electrons have positrons, protons antiprotons, quarks have antiquarks etc. The exceptions are those particles that have themselves as antiparticles, such as photons.

Anders Sandberg                                      Towards Ascension!                  
GCS/M/S/O d++ -p+ c++++ !l u+ e++ m++ s+/+ n--- h+/* f+ g+ w++ t+ r+ !y