pic: How we cool our compressor

[Adam Y.]

Originally Posted by Doug G

I can't help myself... There's a couple of things about this statement that bothers me and so I felt a teaching moment coming on ...

1) Electrons absolutely flow; but from negative to positive. Unfortunately the definition of "current" is the flow of positive charge (even though no positive charge carriers are flowing in these circuits, thank those dudes from the 1800's for defining current before they knew the existance of electrons), and thus we say current flows from positive to negative. This is a commonly misused/misunderstood concept.

This isn't entirly correct either. You have a positive charge flowing in a circuit. The correct term to describe this is holes. Holes move from positive to negative in a circuit. In reality it doesn't really affect anything in this example but once you get into semiconductors you get devices in which depending on how they made primairly move one type of charge (Holes or Electrons).