Cryogenics necessary to use a silicon diode for accuracy. Cryogenics In physics, cryogenics is the production and behaviour of materials at very low temperatures. A person who studies elements that have been subjected to extremely cold temperatures is called a "cryogenicist". It is not well-defined at what point on the temperature scale refrigeration ends and cryogenics begins, but scientists assume a gas to be cryogenic if it can be liquefied at or below . The U.S. National Institute of Standards and Technology has chosen to consider the field of cryogenics as that involving temperatures below . This is a logical dividing
What Do You Mean? Bieber uses a smooth, soulful vocal. Lyrically, "What Do You Mean?" describes not being able to figure out the opposite sex. It was featured in several year-end lists of best songs of 2015. Commercially, the song topped the charts in several countries, including Canada, Ireland, New Zealand, and Norway. In Australia, the United States and the United Kingdom, "What Do You Mean?" was Bieber's first number-one single. The song's music video features Bieber in bed with a young woman and getting kidnapped by masked men, as well as an appearance from actor John Leguizamo. After releasing "Where Are Ü Now"