Cryogenics 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 line, since the normal boiling points of the
What Do You Mean? Do You Mean?" was performed at the 2015 MTV Europe Music Awards on October 25. Moreover, the song was also included on the set list for the Purpose World Tour. What Do You Mean? "What Do You Mean?" is a song recorded by Canadian singer Justin Bieber for his fourth studio album "Purpose" (2015). The song was released on August 28, 2015, as the album's lead single by Def Jam. Written by Bieber, Jason "Poo Bear" Boyd and Mason Levy, the song was produced by MdL and co-produced by Bieber. "What Do You Mean?" is a pop and tropical house