Word: thermal
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
Nearly 90% of all sales are for conventional thermal devices that use the sun's rays to heat rooftop water panels, which in turn heat swimming pools and home water systems. But the exciting side of the industry that is attracting the larger companies is photovoltaics?the direct conversion of sunlight into electricity. The theory is simple. A wafer-thin, 3-in. to 4-in. plate or "cell' that is sliced from a chemically treated silicon crystal will give off direct-current electricity when exposed to light. The amount that comes from each cell is minute, but many cells...
...initials B.T.U. stand for British thermal unit, the basic measurement of heat in a given amount of energy. But to more and more business people, the letters are coming to mean something else -Better Tighten...
...pressure ridges blocked his route across the frozen Arctic Ocean obliging him to hack passageways through the ice to make way for his 882-lb. sledge. Temperatures dropping to as low as -68° F., gale-force winds and a blizzard also slowed down Uemura Though he wore modern thermal underwear, most of his clothing was Eskimo gear; bearskin trousers, sealskin mittens and fur-lined boots...
...roster of last week's opening day teams read like a copy of the minutes of a B'nai B'rith meeting. The garishly outfitted squad of Scheft, Scheft, and Stern, who appeared in red and white thermal underwear, defeated Goldberg, Ginsberg, and Shohet, who comprised the fashionable Blue team...
...heat, concussive force and radiation. But when their yield is reduced, as in the neutron bomb, the balance changes. In the words of Herbert Scoville Jr., a former weapons specialist for the Pentagon and CIA: "The instantaneous nuclear radiation, first gamma rays, then neutrons, become predominant, and the blast thermal effects become less and less important." As a result, if a typical bomb of this sort is exploded 500 ft. above the target, the blast and heat effects extend only about 400 yds. from ground zero, but the high-energy neutrons, hurtling in all directions and penetrating even the thick...