cryogeniske

Cryogenics is a branch of physics that studies the production and effects of very low temperatures. Temperatures below approximately -150 degrees Celsius (-238 degrees Fahrenheit or 123 Kelvin) are generally considered cryogenic. The field involves working with substances such as liquid nitrogen, liquid helium, and liquid hydrogen, which have extremely low boiling points. These cryogenic fluids are essential for a wide range of applications.

One of the most well-known applications of cryogenics is in medical imaging, particularly in MRI (Magnetic Resonance Imaging) machines, which use superconducting magnets cooled by liquid helium. Cryogenics also plays a crucial role in scientific research, enabling the study of superconductivity, the behavior of matter at extremely low temperatures, and the operation of particle accelerators. In industry, cryogenic techniques are used for food preservation, industrial gas production, and in the aerospace sector for rocket propulsion systems that utilize liquid hydrogen and oxygen. Furthermore, cryogenics is central to the concept of cryonics, the practice of preserving bodies at very low temperatures with the hope of future revival.