Word: electronically
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...Physical Colloquium, Monday, in the Cruft Laboratory Lecture Room, C. K. Jen will speak on "A New Treatment of Electron Tube Oscillators" and I. F. Birch is to lecture on "Concentrated Space Charge in Calcite." The talks occur at 4.45 o'clock after a tea served in the library of the New Physics Laboratory...
Then there are standard quarts and bushels, standard tin cans and hotel dishes, machines which weigh an electron, others which weigh bridges. They bend steel girders at the bureau and blow up steel tanks. One device, an interferometer, indicates how far a 40-in. brick wall is deflected by the pressure of one hand. They have an ultramicrometer which measures a movement of one-millionth part of an inch. But it is "too sensitive for any known...
...clever device Chairman Robert Andrews Millikan of the California Institute of Technology was able to measure the electrical charge of the electron, the indivisible unit of all electricity. For that Dr. Millikan won a 1923 Nobel Prize. Last week two other Caltech men-Jesse W. M. du Mond and Harry Kirkpatrick- reported the perfection of another device, to measure the speed of electrons moving within atoms. A serviceable description of the structure of an atom is this: At its core are, according to the particular kind of atom, 1 to 238 protons (positive charges of electricity). The hydrogen atom (simplest...
...could duplicate on earth the 40.000.000° C. at which the sun's centre boils, he might do what he wished with electrons and protons. At that temperature matter's subunits dance around each other and coalesce as atoms; atoms break up into their electron and proton elements; and every explosion, every coalescence scatters atomic energy. Professor Compton cannot duplicate solar heat, but with a mighty X-ray tube, he calculates, he can drive particles of matter at speeds so nearly solar that new atoms will result. His tool will be a 10,000-volt tube, five times...
...crowd are identical triplets? Mary, Marie, Marion?dressed exactly alike. The observer thinks he recognizes Mary (an electron). He taps her on the shoulder. She turns around. Now the observer does not know whether she is Mary, Marie or Marion. Her identity is uncertain. The tapped girl pauses and may decide not to go to the show that evening. As a theatre-going electron she therefore disappears...