|
Cryo Letters
Cryo- is from the Ancient Greek κρύος (krúos, “ ice, icy cold, chill, frost”). Uses of the prefix Cryo- include: Physics and geology * Cryogenics, the study of the production and behaviour of materials at very low temperatures and the study of producing extremely low temperatures * Cryoelectronics, the study of superconductivity under cryogenic conditions and its applications * Cryosphere, those portions of Earth's surface where water ice naturally occurs * Cryotron, a switch that uses superconductivity * Cryovolcano, a theoretical type of volcano that erupts volatiles instead of molten rock Biology and medicine * Cryobiology, the branch of biology that studies the effects of low temperatures on living things * Cryonics, the low-temperature preservation of people who cannot be sustained by contemporary medicine * Cryoprecipitate, a blood-derived protein product used to treat some bleeding disorders * Cryotherapy, medical treatment using cold ** Cryoablation, tis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryogenics
In physics, cryogenics is the production and behaviour of materials at very low temperatures. The 13th IIR International Congress of Refrigeration (held in Washington DC in 1971) endorsed a universal definition of “cryogenics” and “cryogenic” by accepting a threshold of 120 K (or –153 °C) to distinguish these terms from the conventional refrigeration. This is a logical dividing line, since the normal boiling points of the so-called permanent gases (such as helium, hydrogen, neon, nitrogen, oxygen, and normal air) lie below 120K while the Freon refrigerants, hydrocarbons, and other common refrigerants have boiling points above 120K. The U.S. National Institute of Standards and Technology considers the field of cryogenics as that involving temperatures below -153 Celsius (120K; -243.4 Fahrenheit) Discovery of superconducting materials with critical temperatures significantly above the boiling point of nitrogen has provided new interest in reliable, low cost method ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
