While cream is an emulsion of fat-in-water, the process of churning causes a phase inversion to butter which is an emulsion of water-in-fat.
It was basically a 625-line version of NTSC, with phase inversion of alternate numbered scan lines.
"Captain, I'm getting what looks like the residue of a temporal phase inversion."
A phase inversion is neither a time shift nor a phase shift, but simply a swap of plus and minus.
Cathode bias is also used to achieve phase inversion.
At each front-surface reflection, the light will undergo a phase inversion.
In this orientation, the test and reference beams each experience two front-surface reflections, resulting in the same number of phase inversions.
Thermal methods are the most commonly used and consists in increasing temperature to accelerate destabilisation (below critical temperatures of phase inversion or chemical degradation).
This helped him ensure that the kicks line up with the programmed drums, hence preventing any phase inversion.
In the generalized Woodward-Hoffman rules, each (4r) component has a phase inversion.