Word: electronics
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...Thomson discovered the electron...
...noble" gases (Argon, Helium, etc.) and made the most accurate contemporary determinations of the ohm and the ampere. He got a Nobel Prize 20 years after he retired from the Cavendish directorship. Third director was Sir Joseph John Thomson, who held the post for 35 years, discovered the electron while studying electric discharge in gases. Still alive, a Grand Old Man of 82, Sir Joseph strolls about in a black bowler with a cane clutched behind his back, attends "hall" (dinner) once a week, still putters in an old laboratory, is said by irreverent students never to take a bath...
...standard table of elements lists 92-from hydrogen, the lightest element, to uranium, the heaviest. An atom of hydrogen has one positive charge on the nucleus and one planetary electron; uranium has a positive nuclear charge of 92, and 92 attendant electrons. The existence of all these elements has been well established, except for Nos. 85 and 87 (alabamine and virginium),† whose discovery has been claimed by various investigators but not yet certainly confirmed. The existence of elements heavier than uranium is theoretically possible. In fact, such heavy elements of higher numbers than 92 are supposed to exist...
...Anderson's analysis of the photograph (see cut) is as follows: the particle, weighing 240 electron units, enters the chamber near the upper left-hand corner of the picture, making a thin, sketchy white track which is slightly curved owing to a strong magnetic field maintained across the chamber. Its energy is 10,000,000 electron-volts. It passes through a copper cylinder (left centre) and emerges below, much weaker and making a broader line. Its energy is now only 210,000 volts and so its path is more sharply bent by the magnetic field. After traveling about...
Evidence which does not appear clearly in the picture convinced Dr. Anderson that at the end of its trail the particle disintegrated by the emission of a positive electron...