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An instrument for ascertaining the specific gravity of liquids.

ightliness; vivacity; animation; spirit; as, the liveliness of youth, contrasted with the gravity of age. B. Jonson.

undantly, as in dolomite, talc, meerschaum, etc. Symbol Mg. Atomic weight, 24.4. Specific gravity, 1.75. Magnesium sulphate. (Chem.) Same as Epsom salts.

uid (commonly called quicksilver), and is used in barometers, thermometers, ect. Specific gravity 13.6. Symbol Hg (Hydrargyrum). Atomic weight 199.8. Mercury has a molecule which consists of only one atom. It was named by the alchemists after the god Mercury, and designated by his symbol, mercury.

The point of intersection of a vertical line through the center of gravity of the fluid displaced by a floating body which is tipped through a small angle from its position of equilibrium, and the inclined line which was vertical through the center of gravity of the body when in equilibrium.

A rare mineral of resinous luster and high specific gravity. It is a tantalate of calcium, and occurs in octahedral crystals usually very minute.

is intermediate between the lighter gasoline and the heavier benzine, and has a specific gravity of about 0.7, -- used as a solvent for varnishes, as a carburetant, illuminant, etc.

neral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity.

urity, ambiguity, dogmatism. They have something venerable and oracular in that unadorned gravity and shortness in the expression. Pope. -- O*rac"u*lar*ly, adv. -- O*rac"u*lar*ness, n.

ed in histological experiments to stain tissues. Symbol Os. Atomic weight 191.1. Specific gravity 22.477.

ty that, when its plane is placed vertically, a body descending along it, by the force of gravity, will approach to, or recede from, a fixed point or center, by equal distances in equal times; -- called also a paracentric. -- Paracentric motton or velocity, the motion or velocity of a revolving body, as a planet, by w…

so suspended from a fixed point as to swing freely to and fro by the alternate action of gravity and momentum. It is used to regulate the movements of clockwork and other machinery.

The relative acuteness or gravity of a tone, determined by the number of vibrations which produce it; the place of any tone upon a scale of high and low.

huric acid, rarely for coin, and in the form of foil and wire for many purposes. Specific gravity 21.5. Atomic weight 194.3. Symbol Pt. Formerly called platina. Platinum black (Chem.), a soft, dull black powder, consisting of finely divided metallic platinum obtained by reduction and precipitation from its solutions. I…

e cord by which a plumb bob is suspended; a plummet. (b) A line directed to the center of gravity of the earth. -- Plumb rule, a narrow board with a plumb line, used by builders and carpenters.

Weight; gravity; that which causes a body to descend; heaviness. "Weights of an extraordinary poise." Evelyn.

A persistently excessive flow of watery urine, with low specific gravity and without the presence of either albumin or sugar. It is generally accompanied with more or less thirst.

nergy per second. One poncelet equals g watts, when g is the value of the acceleration of gravity in centimeters.

Weight; gravity. [R.] Gregory.

The quality or state of being ponderous; weight; gravity; heaviness, ponderousness; as, the ponderosity of gold. Ray.