On Saturday, November 16, 2013 1:59:09 PM UTC-5, wrote:
On Sat, 16 Nov 2013 13:50:57 -0500, Wes Groleau

wrote:



On 11-16-2013, 11:34, wrote:

On Sat, 16 Nov 2013 01:17:23 -0500, Wes Groleau

wrote:



On 11-15-2013, 19:58, wrote:

180 degrees, but technically, no. It's opposite sign, not 180 degrees

out of phase.



Same thing



No, it's not. It's one phase.



The reference is neutral. Each "hot" is 180º from the other when the

correct reference is used.



No, it's not. Words mean things. Phase has a particular meaning

Yes and in electrical engineering, the most widely used context
of "phase" is simply the relationship of one cyclical waveform
to another. Hence, the two dryer hot legs are in fact 180 deg
out of phase with each other. Look at them on a scope. What do
you see?



and

a phase shift and inversion are different things.

From the electron's perspective, a mathematical perspective,
a physics perspective, what exactly is the
difference between saying two signals, waveforms, circuit
points, etc are 180 deg out of phase or that one is the inversion
of the other?



In degenerate cases

they may look the same but they're not. Call things by their proper

names and communication gets easier. Or not, spread lies. Your

choice.

He is calling things by their proper name. You're
insisting that a 180 def phase difference of two waveforms
must be called "opposite" and not a 180 deg phase difference.

http://en.wikipedia.org/wiki/Phase_(waves)

Phase difference is the difference, expressed in electrical degrees or time, between two waves having the same frequency and referenced to the same point in time.[1] Two oscillators that have the same frequency and no phase difference are said to be in phase. Two oscillators that have the same frequency and different phases have a phase difference, and the oscillators are said to be out of phase with each other. The amount by which such oscillators are out of phase with each other can be expressed in degrees from 0° to 360°, or in radians from 0 to 2π. If the phase difference is 180 degrees (π radians), then the two oscillators are said to be in antiphase.