Word: bulbs
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Dates: during 1970-1979
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...that the big sales have been covered by the press as Events; the sums paid for art used to be buried in newspapers along with ship arrivals. Now, with the tremendous increases in fine arts prices and the expansion of public interest, big auctions have become flash bulb and video-tape fiestas. To a large extent the transformation has been wrought by Sotheby's, the world's largest, canniest and most aggressive house. In the late '50s Sotheby's introduced such techniques as international telephone hookups, bidding by closed-circuit TV, the gala evening sale crammed...
...session, electrodes are attached to one or both sides of the head, and 80 to 100 volts applied for as much as one second. That produces enough current to light a 100-watt bulb and causes a brain seizure, which can be traced on an electroencephalogram. Patients regain consciousness within minutes but may be groggy and confused for a while. Usually six to ten ECT sessions are given within a two-to-three-week period...
...first practical electric light, and a power-distribution system that put it cheaply into every home. Like much else about Edison, the precise date is in dispute, but the inventor himself remembered Oct. 21, 1879, as the day on which he began the test of the first successful light bulb...
...number of materials, he hit on carbon. He tried to give the impression that he came up with that idea independently. In fact, says Biographer Conot, his laboratory notebooks prove that he read and underlined reports of the experiments of Joseph Swan in England. Swan had invented an electric bulb that used a fine carbon...
There were technical differences between the bulbs that, Edison's partisans say, made his superior. For example, Swan's carbon rod was fairly thick, Edison's filament was thin. But a crucial difference was that Swan stopped with inventing the bulb, while Edison took what would now be called a "systems approach"; he saw that the bulb had to be only one of a whole series of inventions. To make it in the first place, he and his assistants had to produce a more complete vacuum than had ever been known before. Then they had to devise...