Absolute Cold | Space Time
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[PBS Digital Studios chime]This episode is brought to you by Curiosity Stream.Winter may be coming, but be comforted;true, absolute zero is impossible.We'll always have quantum fluctuations to warm our chilly bones.[Space Time theme music]The mystical-seeming quality of heatis nothing more than the motion of a substance's component particles.Temperature is just a measure of internal kinetic energy.So then, the feeling of cold is the relative absence of internal kinetic energy.But what if we reduced temperature so much that all particle motion ceases?This state of absolute cold is the zero point in the Kelvin temperature scale,corresponding to −273.15 Celsius.Many experimental physicists have spent their careers trying to cool things to absolute zero.Us...
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[PBS Digital Studios chime]This episode is brought to you by Curiosity Stream.Winter may be coming, but be comforted;true, absolute zero is impossible.We'll always have quantum fluctuations to warm our chilly bones.[Space Time theme music]The mystical-seeming quality of heatis nothing more than the motion of a substance's component particles.Temperature is just a measure of internal kinetic energy.So then, the feeling of cold is the relative absence of internal kinetic energy.But what if we reduced temperature so much that all particle motion ceases?This state of absolute cold is the zero point in the Kelvin temperature scale,corresponding to −273.15 Celsius.Many experimental physicists have spent their careers trying to cool things to absolute zero.Us...
