In message <[email protected]>,
dated Wed, 22 May 2013, "ce-test, qualified testing bv - Gert Gremmen"
<[email protected]> writes:
The real problem is that we forgot that current flow in loops
(Thevenin?)
Helmholz 1853 Thévenin 1883, but Ohm (1827) may have been the first; his
book was Die galvanische Kette, mathematisch bearbeitet (tr., The
Galvanic Circuit Investigated Mathematically), or Ampère a few years
earlier.
and someone decided somewhere that implementing retour current paths
that were intended to have the same potential could be realized by a
single conductor...
I think that people were induced to forget that every conductor has
impedance by the invention of the antenna and 'earth', and the small
values of signal currents in early valve/tube circuits.
--
OOO - Own Opinions Only. See www.jmwa.demon.co.uk
They took me to a specialist burns unit - and made me learn 'To a haggis'.
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
-
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