Word: electronic
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Dates: during 1930-1939
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...readers in thin, lucid books. Sir James again led his hearers over the trail from the comfortable Victorian universe of jelly-like ethers, billiard-ball particles, gears and levers to the disconcerting, fantastic universe built by Rutherford, Planck. Bohr, Einstein. Heisenberg. Schrodinger, Dirac and others where the electron dances beyond space and time in a field of mathematical formulae...
...attacked the orthodox teaching of physics that electric current is a flow of matter having mass. A current of one ampere is a flow of 6,281 billion billion electrons per second past a given point. An electron is a particle of matter weighing 0.8999 billionths of a billionth of a billionth of a gram. But was electric current tangible...
...voltage. In Professor Van de Graaff's machine moving paper belts brush static electricity upon huge metal balls. A modification, for which he already has a 1,000,000-volt model, will consist of a single metal ball and a metal-&-porcelain chain electron "conveyor," the whole contained in a vast steel vacuum tank. Expected voltage...
Visible Atoms. Academy members had the privilege of beholding, projected on a screen, photographs of three kinds of atoms. The helium atom appeared as a vague blob of electricity. In the neon atom the inner & outer groups of orbital electrons were clearly distinguishable. In the argon atom the inner and middle electron groups showed as one blurred ring, but separate from the outer group. The images were composite photographs of billions of atoms resolved into single pictures by photographing a revolving plate the shape of which was determined by x-ray diffraction. Though indirect, complex and laborious, the method...
Subatomic investigators find neutrons elusive little things to deal with. Unlike electrons, protons and positrons, they have no electric charge. Slippery as wrestlers covered with oil they slide through the electric fields of atoms, are not deflected until they collide squarely with a nucleus. Nevertheless their mass (about 1,800 times that of an electron) has been established within fairly precise limits. And last week three Columbia physicists announced the size of the neutron as slightly less than .0000000000001 (one ten-trillionth) of an inch...