posted September 22, 2003 07:44 PM         

We only have a limitted view of our spectrum, and hence wouldn't be able to see other frequenies ( http://www.megspace.com/science/porsche911/qed/spectrum.html - just something I wrote once). This sounds more like antimatter too as my understanding of parrallel universes is that they exist overlapping us. We have no way of seeing one dimension let alone 4, but antimatter universes are a different story. There, our electrons are positron, proton become anti-protons, basically for every combination of quarks, anti-matter bosons are flipped (sorry for getting too technical).

OK, there are six quarks - top, bottom, up, down, strange and charmed. There are also six types of particales. Leptons (photons and electrons are examples), mesons (contain two quarks), bosons (contain three quarks - protons, neutrons, etc.), hadrons, etc. (can't remember all particles). Now, for example, a proton has two up, and one down quark. This combination is used to understand how it interacts with nuetrons, which may for example have two down and one up. The anti-matter equivelent is the reversal of this - but I'm not sure exactly how it works. A strange quark could be the opposite of down, and charmed likewise for up.

My point it there could indeed be a vast collection of particles like these at the distances you've mentioned, but I am led to believe that there isn't.

Just an example of the "relatively new" science of quantum electrodynamics.

Dean.