Word: vacuum
(lookup in dictionary)
(lookup stats)
Dates: during 1930-1939
Sort By: most recent first
(reverse)
...product, how he thrashed them when their salesmanship was poor. Son of a Swedish count, he later worked in Gothenburg but, restless and energetic, went to Berlin to learn big business. Later, like Ivar Kreuger, he worked and traveled all over the world. Before the War he picked out vacuum cleaners as a likely product to distribute. But the War stopped his plans for an international selling organization. With capital of 120,000 kroner (about $32,000) A. B. Elektrolux was launched in 1919. Thereafter the rise of Axel Wenner-Gren was swift-even for a Swede. Vacuum cleaners were...
...Graaff knew, moreover, that a vitally important part of his huge contraption, as a scientific instrument, was a 40-ft.-long vacuum tube made of laminated paper. Still unfinished and untested last week, this tube is to bridge the gap between the balls, serve as a channel for the 10,000,000 volts which Dr. Van de Graaff expects to produce. At one end of the tube swarms of protons will be released. The high voltage will whip these particles down the tube against a target at the other end. Dr. Van de Graaff hopes that these bullets will disrupt...
...pool. The results of this addition can be tested by comparing a test tube full of water with a graded color chart. In addition, the floor of the tank is periodically cleaned by being subjected to the suction of a large curry comb, connected by a hose to the vacuum end of the pumps...
...simple terms the meaning of the electron, of micro-amperes, and the cathode rays. The properties of radium and uranium with their mysterious emanations, which man is as yet totally unable to control, will also be discussed at length and a demonstration will be offered of the versatility of vacuum tubes as the electric eye, the electric ear, and the electric touch...
...first 50 k.w.h. at 3? per k.w.h. ($1.50) which in the average home will operate lights, iron, toaster, percolator, vacuum cleaner for one month...