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
Studies in Words may yield a total misunderstanding of what the author meant to say. Those who have a large vocabulary are actually more likely to pick a wrong meaning because they can rationalize its enjambment. Some of the earlier meanings are only partially recalled in stock phrases, such as "world without end," which employs the earlier use of the word "world" to mean 'age'. The words studied are "nature," in all its phrases, especially "human nature"; "sad," which originally meant "heavy"; "wit"; "free", with all its differences from slavery and villainy; "sense", with its two meanings of perception and judgement; "simple"; "conscience"