13 Dec
2004
13 Dec
'04
8:39 a.m.
On Monday 13 December 2004 09:29, Paul Koning wrote:
I don't actually know where 50 and 60 Hz came
from, nor 100 and 115
and 220 and 240 volts. There may be some ancient justification in
the tinkerings of various 19th century engineers, but it seems to me
it makes most sense simply to view them as random numbers.
Probably 115/120V was chosen, because it was the correct voltage to make
a pickle glow. ;)
Pat
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