Date: Thu, 23 May 2013 19:57:12 +0200
- About.com Physics
New Research Redefines "Really Cold"
Temperature has long been understood as a measurement of the average energy of a set of atoms, with the absolute zero temperature representing a system in which the particles no longer have any kinetic energy at all, having ceased all movement. For this reason, while we frequently talk about negative temperatures in the Celsius and Fahrenheit scales, the idea of a negative temperature on the Kelvin temperature scale was believed to be a nonsensical concept. After all, you can't have less motion than none, can you?...