Word: polarity
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Dates: during 1940-1949
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Oceanographer Allen reports that in years of unusually warm Pacific water, diatoms were fewer. Diatoms flourish best in cold water, which contains more dissolved carbon dioxide than warm. Result is the well-known abundance of whales, seals, big fish in polar regions...
Invented and manufactured by J. M. Cohen of Potomac Chemical Co., Tectyl does two things: 1) separates salt water from steel, 2) forms an oily, protective coating on the metal. It is electromagnetically attracted to steel and other electrically conducting metals, forms what are called polar films. There are four grades corresponding to film thicknesses ranging from .0002 to .0008 inch. The lightest Tectyl (thinnest film) can be used for cleaning machines of oil and dust, leaves a temporary lubricating and protective layer. The heaviest grade provides longtime protection for metals exposed to weathering...
...Professor of Polar Geography was installed at Oslo University to acquaint Norwegians with their new colony...
...Polar bears have been seen swimming 300 miles from land...
...biologically speaking, Venus appears much younger than Earth, then Mars appears much older. It is smaller and colder than Earth, has lost most of its atmosphere and water. But a thin atmosphere it still has, perhaps containing a little oxygen. And Mars has a little water, as the white polar caps show. These caps melt in the Martian summer, accumulate again in winter. The excitement over possible Martian inhabitants was started in the 19th Century by the Italian astronomer Schiaparelli, who described hazy streaks on the surface, called them canali. This Italian word means "channels," was erroneously translated "canals," which...