I am almost inclined to coin a word and call the appearance fluorescence, from fluor-spar, as the analogous term opalescence is derived from the name of a mineral.

You can flip a coin to change its face, but it remains the same coin.

Faith and science, I have learned, are two sides of the same coin, separated by an expanse so small, but wide enough that one side can't see the other. They don't know they are connected.

The other side of the coin is that many investors are getting in. I personally have around 11 million shares and I'm keeping them -- in good as in bad times.

'Incontrovertible' is not a scientific word. Nothing is incontrovertible in science.

COIN TOSS