Word: atomic
(lookup in dictionary)
(lookup stats)
Dates: during 1930-1939
Sort By: most recent first
(reverse)
Although the uranium atom was the most massive in the standard table of 92 elements, there was no theoretical reason why heavier elements should not exist...
Professor Fermi found them by bombarding uranium with a stream of neutrons (tiny particles which weigh about the same as a proton or hydrogen nucleus but have no electric charge). His bombarding neutrons slipped into the hearts of the uranium atoms, forming an unstable new element, ckarhcuium-No. 93. Similarly, in 1936, Dr. Fermi created a few atoms of ckaosmium-No. 94. Some of his other discoveries about neutrons: Having no electric charge, neutrons are not affected by the negative electric field outside an atom or by the positive charge on its nucleus. The only thing that stops them...
Lord Rutherford, discoverer of the atom's nucleus, pioneer atom-smasher and fourth Cavendish Professor, died last year...
...Francis William Aston invented the mass-spectrograph, which measures the mass of atoms by recording their paths in a magnetic field. The principle is that the degree of curvature of an atom's path under magnetic attraction depends on its mass. This instrument was of enormous value in the study of isotopes, which are atoms of the same element having different weights...
Some $75,000 of Baron Austin's money will go for modernizing the lecture halls. A big new laboratory for research on the atom-with library, conference room and tea room-will eat up $500,000. Another $50,000 went into a 36-ft. high-voltage atom-smasher. This hurls atomic bullets at controlled energies up to 2,000,000 electron-volts. Still another $30,000 was laid out for a cyclotron-an atom-smashing machine of the type invented by the University of California's Ernest Orlando Lawrence, which spirals atomic bullets up to huge speeds...