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The Epic Interactive Encyclopedia 1998
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Epic Interactive Encyclopedia, The - 1998 Edition (1998)(Epic Marketing).iso
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Hydrometer
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1992-09-02
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In physics, an instrument used to measure the
density of liquids compared with that of
water, usually expressed in grams per cubic
centimetre. It consists of a thin glass tube
ending in a sphere that leads into a smaller
sphere, the latter being weighted so that the
hydrometer floats upright, sinking deeper
into lighter liquids than into heavier
liquids. It is used in brewing. The
hydrometer is based on Archimedes' principle.