Cryotank In science fiction, cryogenic tanks are used to freeze people. "cry-" is a Greek prefix which means "cold or freezing", hence humans are stored in the tank frozen until a future date. Cryotanks are found in some science fiction films such as "Prometheus" (2012) and "The Host" (2013). Cryotank Cryotank or cryogenic tank is a tank that is used to store frozen biological material. The term “cryotank” refers to storage of super-cold fuels, such as liquid oxygen and liquid hydrogen. Cryotanks and cryogenics can be seen in many sci-fi movies, but they are still currently undeveloped. All that needs to
Cryogenics so-called permanent gases (such as helium, hydrogen, neon, nitrogen, oxygen, and normal air) lie below −180 °C while the Freon refrigerants, hydrocarbons, and other common refrigerants have boiling points above −180 °C. Discovery of superconducting materials with critical temperatures significantly above the boiling point of liquid nitrogen has provided new interest in reliable, low cost methods of producing high temperature cryogenic refrigeration. The term "high temperature cryogenic" describes temperatures ranging from above the boiling point of liquid nitrogen, , up to , the generally defined upper limit of study referred to as cryogenics. Cryogenicists use the Kelvin or Rankine temperature