Cryogenics is the group of methods used to cool an element to the boiling point of nitrogen or even lower temperatures. The boiling temperature of nitrogen, is about 77.36 K or what is equal to −195.79 ° C, is achieved by soaking a prototype in liquid nitrogen. Using liquid helium instead of nitrogen makes it possible to achieve its boiling temperature, which is 4.22K or −268.93 ° C.
The most common one that is given to cryogenics is associated with superconducting elements, which, under certain circumstances, are able to display the conduction of electric current without endurance and without energy decreases being registered. For superconductivity to be created, it is necessary to obtain very low temperatures, they are lower than -138 ºC. Cryogenics, in this picture, allows the superconducting magnets of atomic magnetic resonance devices to be kept at the temperature they need.
Through the use of much more developed methods, it is feasible to reach temperatures even closer to absolute zero of the thousandth kelvin ordinance, adiabatic demagnetization and dissolution freezers. Systematics have their main study in the field of research, since at suitably low temperatures the goods of quantum mechanics are distinguished in macroscopic bodies.
Cryogenics is also a technique applied in food freezing processes. Through the application of carbon dioxide or nitrogen, it is feasible to freeze food products in order to maintain and preserve them.
In the field of biology, cryogenics is used to store embryos to later be used later, which also happens with ovules, semen and even tissues.
With repetition, cryogenics is mistakenly called cryopreservation or cryonics, which is the group of techniques implemented to preserve, manipulating very low temperatures, in legitimately dead people, or animals, for a viable resuscitation, when the technology and science of the future manage to correct all disease and restore the damage due to the cryopreservation procedure.
