Cryogenic storage dewar
Videos
A cryogenic storage dewar is a specialised type of vacuum flask used for storing cryogens, whose boiling points are much lower than room temperature. It is named after inventor James Dewar, who develo
A self-pressurising dewar (silver) being filled with liquid nitrogen from a larger storage tank (white)
Cryogenics
Videos
In physics, cryogenics is the production and behaviour of materials at very low temperatures.
Cryogenic storage dewar
…A cryogenic storage dewar (or simply dewar) is a specialised type of vacuum flask used for storing cryogens (such as liquid nitrogen or liquid helium), whose boiling points are much lower than room temperature. It is named after inventor James Dewar, who…
Nitrogen is a liquid under −195.8 °C (77.3 K).
This is a diagram of an infrared space telescope that needs a cold mirror and instruments. One instrument needs to be even colder, and it has a cryocooler. The instrument is in region 1 and its cryocooler is in region 3 in a warmer region of the spacecraft (see MIRI (Mid-Infrared Instrument) or James Webb Space Telescope).
Catalogue image of a cryogenic valve