FLOTATION n.
. Rankine. -- Plane, or Line, of flotation, the plane or line in which the horizontal surface of a fluid cuts a body floating in it. See Bearing, n., 9 (c). -- Surface of flotation (Shipbuilding), the imaginary surface which all the planes of flotation touch when a vessel rolls or pitches; the envelope of all such pl…
FLOTATION PROCESS n.
e substances contained in pulverized ore or the like by depositing the mixture on the surface of a flowing liquid, the substances that are quickly wet readily overcoming the surface tension of the liquid and sinking, the others flowing off in a film or slime on the surface, though, perhaps, having a greater specific g…
FLY v.
olloq.] -- To fly at, to spring toward; to rush on; to attack suddenly. -- To fly in the face of, to insult; to assail; to set at defiance; to oppose with violence; to act in direct opposition to; to resist. -- To fly off, to separate, or become detached suddenly; to revolt. -- To fly on, to attack. -- To fly open,…
FOAM n.
The white substance, consisting of an aggregation of bubbles, which is formed on the surface of liquids,or in the mouth of an animal, by violent agitation or fermentation; froth; spume; scum; as, the foam of the sea. Foam cock, in steam boilers, a cock at the water level, to blow off impurities.
FOCAL a.
cal distance, or length,of a lens or mirror (Opt.), the distance of the focus from the surface of the lens or mirror, or more exactly, in the case of a lens, from its optical center. --Focal distance of a telescope, the distance of the image of an object from the object glass.