Author: Dann Corbit
Date: 10:33:56 05/10/01
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On May 10, 2001 at 06:06:48, Ralf Elvsén wrote: >On May 09, 2001 at 20:37:06, Dann Corbit wrote: > >> >>There are an estimated 10^82nd elementary particles in the universe. >> >This is news to me. Can you give a reference? It's a commonly cited number. For instance: http://iroi.seu.edu.cn/books/whatis/googol.htm Of course, if you buy into string theory (I don't) then there are an infinite number of them. It's obviously a broad guess. You could also make a quick calculation based on the mass of the universe. Since it's almost all hydrogen, you could just find the mass, calculate the moles of hydrogen, and multiply by two particles per atom. The number would be a bit low, but not more than a few percent [iff the mass estimate were correct].
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