Cryostats are often formed by nesting two of them in each other.
This device is an essential part of the Linde process, in which compressed gas is passed through a copper coil to an expansion nozzle inside one of them. Cryostats are often formed by nesting two of them in each other. The walls of the vessel are composed of two thin layers of glass or steel, separated by a vacuum, with the inner surface silvered to reduce radiation. FTP, identify this vessel designed for storing hot or cold liquids, named for its Scottish inventor.
This device is an essential part of the Linde process, in which compressed gas is passed through a copper coil to an expansion nozzle inside one of them.
Dewar flask or vacuum flask or Thermos flask