Professor George Pickett with his cryostat

Professor George Pickett with his cryostat

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This image is part of the feature Coldest

Credit: DAVID PARKER/SCIENCE PHOTO LIBRARY

Caption: Low temperature physics. Professor George Pickett with his cryostat, used to create ultra-low temperatures. In June 1993, Pickett and his team at Lancaster University managed to cool a small piece of copper to 7 microkelvin, just seven millionths of a degree above 'absolute zero' and a new world record. Absolute, or thermodynamic, zero is the point at which an object has no heat at all, and is near minus 273.15 degrees Celsius. The lowest natural temperature is 2.7 kelvin (-270.5 Celsius), the heat of radiation left behind by the Big Bang, found in the deepest recesses of outer space. Pickett and his team use these temperatures to study superconductors and superfluidity.

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Keywords: coldest place in the universe, cryogenics, cryostat, george, laboratory, pickett, portraits, record breaking, surname p

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