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The reduced pressure causes the liquid to vaporize rapidly; the resulting vapour
is then condensed into distillate. A variation of the reduced-pressure process
uses a vacuum pump to produce a very high vacuum. This method, called
The shells of Haliotis have been extensively used for ornamental and decorative
purposes from early times. ear squeeze, also called aerotitis, aero- OTITIS,
BAROTITIS, Or BARO-OTITIS, effects of a difference in pressure between the
His death marked the end of Neustrian predominance in Frankish affairs.
ebullism, formation of bubbles in the bodily fluids because of an extreme
reduction in the surrounding pressure. Aircraft pilots are susceptible to ebullism
when they ...
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review
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For virtually all its 238 years,Britannica has ruled the shelves as a peerless general encyclopedia. Reviewers have consistently given it high marks for most of the 12 criteria identified inKister's ... Read full review