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"The SMPP describes the veritable zoo of particles that are said to be the “fundamental building blocks” of matter, consisting of small particles called leptons, such as the electron and neutrinos and a variety of larger particles called quarks, which make up protons and neutrons. In addition, the SMPP explains the behaviour of three of the four forces of nature: ....." Louis, I have trouble with this sentnece "fundamental building blocks of nature". First we thought atoms are the building blocks. Then then came the realization of atomic particles, electrons, protons and neutrons. And further, we have understood the existence of even more fundamental entities, leptons, nutrinos and what not. But does the quest end here to declare that they are "the" building blocks. We should instead say, "as far as science knows, these appear to be basic building blocks, but other possibilities can not be ruled out." May be string theory or some other theory may evolve into a coherent explanation of the structure of matter and the universe formed by it some day in the near future.Vijaya Kumar Marla _________________________________________________________ Full posting guidelines at: http://www.marxmail.org/sub.htm Set your options at: http://lists.csbs.utah.edu/options/marxism/archive%40mail-archive.com
