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 Are Words What Are Words "What Are Words" is a hit song written by Rodney Jerkins, Andre Lindal and Lauren Christy, and performed by American singer Chris Medina. It was released on February 25, 2011, the day after his surprising elimination on the reality TV show American Idol. The song is a tribute to his fiancée who suffered a brain injury as the result of a car wreck and is about promises, commitment and keeping your word. The music video was shot at Atlantis studios in Hollywood and was released days after the single. The video depicts Medina in the actual recording