PUNCH n.
A tool, usually of steel, variously shaped at one end for different uses, and either solid, for stamping or for perforating holes in metallic plates and other substances, or hollow and sharpedged, for cutting out blanks, as for buttons, steel pens, jewelry, and the like; a die.
QUAKE v.
To shake, vibrate, or quiver, either from not being solid, as soft, wet land, or from violent convulsion of any kind; as, the earth quakes; the mountains quake. " Over quaking bogs." Macaulay.
RADIUM n.
radium A, radium B, radium C, etc. (The emanation is a heavy gas, the later products are solids.) These products are regarded as unstable elements, each with an atomic weight a little lower than its predecessor. It is possible that lead is the stable end product. At the same time the light gas helium is formed; it pro…
RESIN n.
Any one of a class of yellowish brown solid inflammable substances, of vegetable origin, which are nonconductors of electricity, have a vitreous fracture, and are soluble in ether, alcohol, and essential oils, but not in water; specif., pine resin (see Rosin).
RESISTANCE n.
lec.), a coil of wire introduced into an electric circuit to increase the resistance. -- Solid of least resistance (Mech.), a solid of such a form as to experience, in moving in a fluid, less resistance than any other solid having the same base, height, and volume.