Cryogenics scale, both of which measure from absolute zero, rather than more usual scales such as Celsius or Fahrenheit, with their zeroes at arbitrary temperatures. The word "cryogenics" stems from Greek "κρύο (cryo)" – "cold" + "γονική (genic)" – "having to do with production". Cryogenic fluids with their boiling point in Kelvin Liquefied gases, such as liquid nitrogen and liquid helium, are used in many cryogenic applications. Liquid nitrogen is the most commonly used element in cryogenics and is legally purchasable around the world. Liquid helium is also commonly used and allows for the lowest attainable temperatures to be reached. These
Gender reform in Esperanto prefix in his translation of "Genesis" finished in 1915. This usage has spread, and "vir-" is now widely used as a prefix in the case of animals ("virleono" "male-lion", "virhomo" "male-human"), but as a separate adjective "vira" for professions ("vira kelnero" "male waiter"), with "-viro" now considered archaic, though neither of these conventions is as common as feminine "-ino." Moreover, the prefix "vir-" is idiomatic, as "virbovo" (man-bovine) could still mean either "bull" or "minotaur/cherub"; it is only by convention that it is generally understood to mean "bull", and writers have coined words such as "taŭro" "bull" to bypass the