Pressure-relief devices: Devices on cryogenic systems, intended to relieve pressure build up. These devices may be (1) pressure release valves, (2) bursting discs, that are designed to fail at a ...

Dewar was interested in cryogenics, the science of extreme cold and in 1898 he was the first person to make liquid hydrogen, which at the time was the coldest substance ever produced. Cooling gas ...

making it the first cryogenic preservation in the Southern Hemisphere. The body is claimed to be preserved and stored in a dewar tank at Holbrook facility of the company. Philip Rhoades ...