Heat is the energy of motion of tiny particles, the vigorous dance of the atoms and molecules that constitute matter. When matter is chilled, the dance becomes torpid. At Absolute Zero ( 273.13 degrees C.) it would cease altogether. Scientists have not attained and do not expect to attain absolute Absolute Zero, but by a laborious process which involves repeated magnetization and demagnetization they have chilled certain salts to .0002 of one degree above Absolute Zero (TIME, Feb.
25, 1935).
An electric current is simply the passage of electrons through a conductor. The greater the number of electrons, the higher the amperage of...
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