Calx
Calx is a substance formed from an ore or mineral that has been heated.[1]
Calx, especially of a metal, is now known as an oxide. According to the obsolete phlogiston theory, the calx was the true elemental substance, having lost its phlogiston in the process of combustion.
"Calx" is also sometimes used in older texts on artist's techniques to mean calcium oxide.
Etymology
Calx is Latin for chalk or limestone, from the Greek χάλιξ (khaliks, “pebble”). It is not to be confused with the Latin homonym meaning heelbone (or calcaneus in modern medical Latin), which has an entirely separate derivation.
In popular culture
- UK electronic music artist Aphex Twin named four of his tracks after differently coloured calxes (green, yellow, blue and red).
gollark: Well, my backup script has to do some things which are not exactly text processing.
gollark: (I unironically support some form of this, probably not with JSON)
gollark: Reject text processing, make all tools emit JSON.
gollark: That is impressively horrifying.
gollark: `re.sub` can do that.
References
- "calx | Definition of calx in English by Oxford Dictionaries". Oxford Dictionaries | English. Retrieved 2017-12-28.
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