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The state of having weight; beaviness; as, the gravity of lead.

remarkable for its resistance to oxidation, and for its lightness, pertaining a specific gravity of about 2.6. Atomic weight 27.08. Symbol Al. Aluminium bronze or gold, a pale gold- colored alloy of aluminium and copper, used for journal bearings, etc.

An instrument for measuring the specific gravity of fluids; a form hydrometer.

The art or process of measuring the specific gravity of fluids.

ue arsenticum of the ancients. The element and its compounds are active poisons. Specific gravity from 5.7 to 5.9. Atomic weight. Symbol As.

omic philosophy, or Doctrine of atoms, a system which assuming that atoms are endued with gravity and motion accounted thus for the origin and formation of all things. This philosophy was first broached by Leucippus, was developed by Democritus, and afterward improved by Epicurus, and hence is sometimes denominated the…

in granular form, and in compact massive forms resembling marble. It has a high specific gravity, and hence is often called heavy spar. It is a common mineral in metallic veins.

The science of weight or gravity.

Of or pertaining to the center of gravity. See Barycentric calculus, under Calculus.

An oxide of barium (or barytum); a heavy earth with a specific gravity above 4.

nce all the degrees on a Baumé scale are thus equal in length, while those on a specific- gravity scale grow smaller as the density increases, there is no simple relation between degrees Bé. and Sp. gr. However, readings on Baumés scale may be approximately reduced to specific gravities by the following formulæ (x in e…

tar (Astron.), a double star whose members have a revolution round their common center of gravity. -- Binary theory (Chem.), the theory that all chemical compounds consist of two constituents of opposite and unlike qualities.

a candle. It is found in a native state, and as a constituent of some minerals. Specific gravity 9.8. Atomic weight 207.5. Symbol Bi.

urve, in which a body, starting from a given point, and descending solely by the force of gravity, will reach another given point in a shorter time than it could by any other path. This curve of quickest descent, as it is sometimes called, is, in a vacuum, the same as the cycloid.

A contorted expression, as of the face. [R.] 'Gainst nature armed by gravity, His features too in buckle see. Churchill.

he subject and the manner of treating it, as when a trifling subject is treated with mock gravity; jocular; ironical. It is a dispute among the critics, whether burlesque poetry runs best in heroic verse, like that of the Dispensary, or in doggerel, like that of Hudibras. Addison.

Barycentric calculus, a method of treating geometry by defining a point as the center of gravity of certain other points to which coëfficients or weights are ascribed. -- Calculus of functions, that branch of mathematics which treats of the forms of functions that shall satisfy given conditions. -- Calculus of opera…

to illustrate the effect of the compression or expansion of air in changing the specific gravity of bodies. -- Cartesion oval (Geom.), a curve such that, for any point of the curve mr + m'r' = c, where r and r' are the distances of the point from the two foci and m, m' and c are constant; -- used by Descartes.…

Relating to the center of gravity, or to the process of finding it. Centrobaric method (Math.), a process invented for the purpose of measuring the area or the volume generated by the rotation of a line or surface about a fixed axis, depending upon the principle that every figure formed by the revolution of a line or s…

The center of mass, inertia, or gravity of a body or system of bodies.