Word: volts
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...hollow square. Each row of three capacitators was connected in series, and the inside, middle and outside banks of 32 each were hooked up in parallel. Heavy copper straps converged like spider webs from the square to each of the two spheres in the centre. Ordinary 110-volt, 60-cycle current was stepped up by transformers to 75,000 volts, increased by rectifier tubes to 150,000. Half a minute is required to charge the capacitators. The discharge is accomplished...
Atom Guns. The two most powerful U. S. generators of electricity to shoot at atoms are Professor Lawrence's 5,000,000-volt generator at Berkeley and Professor Robert J. Van de Graaff's 10,000,000-volt one at Round Hill, Mass. Professor Lawrence gets his effect by whirling a loin. disk in an 85-ton magnet. Last week he said that he was substituting a 40-in. disk, to get 20,000,000-voltage. In Professor Van de Graaff's machine moving paper belts brush static electricity upon huge metal balls. A modification, for which...
...late President James Douglas of Phelps Dodge Corp. gave altogether $600,000 and 3½ gms. of radium. Edward Stephen Harkness gave $250,000 to buy 4 gms. more. Memorial today has 81 gms., largest supply in the U. S. General Electric has loaned a 700,000-volt x-ray machine whose radiations approximate radium's. The hospital has two 200,000-volt x-ray machines and several smaller ones. An x-ray unit invented by the late Dr. Arthur C. Heublein, which allows the entire body to be flooded by x-rays for long periods, the hospital stopped...
...right auricle. Here originates the stimulus which excites the normal heart to beat about 70 times a minute. Dr. Hyman's investigations told him that the stimulus is an electric current generated by the pacemaker. Ingeniously he measured that current, found it about one-thousandth of one volt...
...radio, and long distance telephony. Another result was Dr. Coolidge's perfection of dependable x-ray tubes and his design of tandem x-ray', tubes whose radiation is almost as powerful as radium's gamma rays. (Manhattan's Memorial Hospital is using a 900,000-volt Coolidge tube to treat cancer...