Coldness
Cold refers to the condition or subjective perception of having low temperature, the opposite of hot.
A lower bound to temperature is the absolute zero, defined as 0 K on the Kelvin scale, an absolute thermodynamic temperature scale. This corresponds to −273.15 °C on the Celsius scale, −459.67 °F on the Fahrenheit scale, and 0 °R on the Rankine scale.
Since temperature relates to the thermal energy held by an object or a sample of matter, which is the kinetic energy of the random motion of the particle constituents of matter, an object will have less thermal energy when it is colder and more when it is hotter. If it were possible to cool a system to absolute zero, all motion of the particles in a sample of matter would cease and they would be at complete rest in this classical sense. The object would be described as having zero thermal energy. Microscopically in the description of quantum mechanics, however, matter still has zero-point energy even at absolute zero, because of the uncertainty principle.
Read more about Coldness: Mammalian Perception, Cooling, Notable Cold Locations and Objects
Famous quotes containing the word coldness:
“The theories and speculations of men concern us more than their puny accomplishment. It is with a certain coldness and languor that we loiter about the actual and so-called practical.”
—Henry David Thoreau (1817–1862)
“There will always be in society certain persons who are mercuries of its approbation, and whose glance will at any time determine for the curious their standing in the world. These are the chamberlains of the lesser gods. Accept their coldness as an omen of grace with the loftier deities, and allow them all their privilege.”
—Ralph Waldo Emerson (1803–1882)
“Through dinner she felt a gradual icy coldness stealing through her like novocaine. She had made up her mind. It seemed as if she had set the photograph of herself in her own place, forever frozen into a single gesture.”
—John Dos Passos (1896–1970)