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The degree of exposure also plays a large role — the different orientation of the
opposite slopes of the ridges in relation to compass directions and to the
prevailing winds. The sunny southern slopes differ from the shady northern ones,
Since any possible increase in light-gathering power is limited to a few powers of
ten, improvements in stellar spectroscopy can be obtained mainly by an increase
in exposure time, by a decrease in the dispersion, and by efficiency of design ...
tion is used for materials that might be adversely affected by moist heat or that
should not be directly exposed to moist heat because of necessary packaging.
The heat afforded by boiling water and pasteurization processes markedly
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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