What are the temperatures of Subzero?

The lowest possible temperature is 0 Kelvin (-459.67 ° F, -273.15 ° C), shortened 0 K. While exactly 0 K is thermodynamically impossible, extremely low temperatures were achieved in the laboratory using a combination of laser cooling and evaporative cooling.

MIT holds the current record, 450 PK (Petakelvins), or 4.5 × 10 ^{-10 , which was announced in September 2003. The University of Helsinki in technology achieved a low -temperature laboratory. Research mainly since the arrival of modern cooling in the mid -19th century. About 800 million years ago, most of the planet was presumed to have been covered with Subzero temperatures, which led to the formation of a nationwide Icecap, sometimes called "Snowball Earth". Until recently, 10,000 years ago was still a valid ice age, known as Wisconsin Legrocation. This ice age could prevent the rise of civilization. After the Neolithic Revolution and Modern Agriculture followed.}

Here are some temperatures submero and their meaning:

• 450 PK - the lowest temperature it reaches, MIT, in 2003.
• 170 nk - the first temperature at which bose -einstein condensate, a unique state of matter where the atoms group collapses to the lowest quantum state of the external potential, allowing to observe quantum effects on the macroscopic level.
• 700 nk - former record low laboratory temperature, nist, in 1994. > Li> 0.95 K - Helia melting point.
• 1 K - the coldest known area of ​​the universe, Boomerang's Nebula.
• 2,17 K - temperature under which Helium is in the state of superfluid, indicating bizzare properties such as browsing from the container in which it is located.
• 2.7 K - average temperature of external space, thermal echo of the large bang.
• 3 K - approximate temperature of typical liquid helium.
• 4.1 hp - temperature at which mercury supernativity was first demonstrated.
• 65 K - approximate liquid nitrogen temperature.
• 123 K - informal boundary between cryogenic and coolerby eating.
• 150 K - Temperature of the hottest known superconductor, SNBA _{4 TM 4 cu 6}
• 183.7 K - the coldest earth temperature ever recorded in Vostok, Antarctica.
• 273,15 K - water melting point.

Subzero temperature research is an important part of science. Without knowing the Subzero regime, we would know much less about physics and chemistry, not to mention that we would have to eat our food quite quickly than the rot of the lack of cooling!