Chronology | Current Month | Current Thread | Current Date |
[Year List] [Month List (current year)] | [Date Index] [Thread Index] | [Thread Prev] [Thread Next] | [Date Prev] [Date Next] |
.... But *if* the spacelike sections of spacetime
are topologically compact (so that the universe is spatially closed) it
is a easily provable theorem that the universe must be charge-neutral
(for essentially the reason illustrated by Bill) because all electric
flux lines must stop & start on opposite charges and there is no
spatial infinity for any excess such lines to escape to.