
The SciencesJune 1, 1949
Low Temperature Physics
At normal temperatures matter is in ceaseless thermal motion. Physicists have accordingly reduced it almost to absolute zero to expose some subtle properties that are otherwise obscured

Low Temperature Physics
At normal temperatures matter is in ceaseless thermal motion. Physicists have accordingly reduced it almost to absolute zero to expose some subtle properties that are otherwise obscured

Mathematical Machines
Some measure, others count. The latter, with which this article is principally concerned, are the focus of much feverish activity, not all of it purely scientific

Radio Waves and Matter
The highest radio frequencies, explored during the war for their utility in radar, have recently illuminated some dim recesses in the world of atoms and molecules