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by TREVOR MARSHALL -- OCTOBER 7, 2017
In physics, cryogenics is the study of the production and behavior of materials at very low temperatures. It is not well-defined at what point on the temperature scale refrigeration ends and cryogenics begins, but scientists assume a gas to be cryogenic if it can be liquefied at or below −150 °C (123.15 K; −238.00 °F).
Via TheTechNews
