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Re: Positive ground..?!
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Posted by MarkB on January 28, 2002 at 03:34:03 from (64.79.80.88):
In Reply to: Positive ground..?! posted by Bill in the South on January 27, 2002 at 18:55:57:
I think that the switch to negative ground was done simply because engineers like it that way. It has long been understood that electrons travel from positive to negative. The decision to pick one polarity as positive was was an arbitrary decision before electrons were understood; whoever made this decision just picked the "wrong" polarity. The practical consequence of saying that current travels from negative to positive is that it screws up the math. Everything ends up being negative. So all electrical engineering textbooks just take the convention that current travels from positive to negative. Since engineers are used to thinking "positive to negative", it's natural that they would prefer negative ground over positive ground.
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