Cryogenics scale, both of which measure from absolute zero, rather than more usual scales such as Celsius or Fahrenheit, with their zeroes at arbitrary temperatures. The word "cryogenics" stems from Greek "κρύο (cryo)" – "cold" + "γονική (genic)" – "having to do with production". Cryogenic fluids with their boiling point in Kelvin Liquefied gases, such as liquid nitrogen and liquid helium, are used in many cryogenic applications. Liquid nitrogen is the most commonly used element in cryogenics and is legally purchasable around the world. Liquid helium is also commonly used and allows for the lowest attainable temperatures to be reached. These
What Do You Mean? You Mean" debuted atop the ARIA Singles Chart on September 5, becoming Bieber's first number-one single on the chart. The song spent four consecutive weeks on top of the chart, becoming the second-longest running chart-topping track for 2015 and gaining a platinum certification from the Australian Recording Industry Association. On October 3, Bieber was knocked off the top by Macklemore & Ryan Lewis's "Downtown". "What Do You Mean" also debuted at the top of the charts in both New Zealand and Ireland, becoming his first number-one single in both countries. It spent seven consecutive weeks at number one in Ireland,