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A system or wireless telegraphy developed by G. Marconi, an Italian physicist, in which Hertzian waves are used in transmission and a coherer is used as the receiving instrument.

A Marconi wireless message.

The apparatus used in Marconi wireless telegraphy.

The theory or practice of Marconi's wireless telegraph system.

Aggregate length or distance in miles; esp., the sum of lengths of tracks or wires of a railroad company, telegraph company, etc. [Written also milage.] Constructive mileage, a mileage allowed for journeys supposed to be made, but not actually made. Bartlett.

A frame with a wire cloth bottom, on which the pump is drained to form a sheet, in making paper by hand.

A slender rod or wire used in knitting; a knitting needle; also, a hooked instrument which carries the thread or twine, and by means of which knots or loops are formed in the process of netting, knitting, or crocheting.

A piece of network; any fabric, made of cords, threads, wires, or the like, crossing one another with open spaces between.

A fabric of threads, cords, or wires crossing each other at certain intervals, and knotted or secured at the crossings, thus leaving spaces or meshes between them.

ng electric oscillations; esp., an apparatus for generating electric waves in a system of wireless telegraphy.

ed paradise birds (Epimachinæ) also include some highly ornamental species, as the twelve-wired paradise bird (Seleucides alba), which is black, yellow, and white, with six long breast feathers on each side, ending in long, slender filaments. See Bird of paradise in the Vocabulary. -- Paradise fish (Zoöl.), a beautifu…

gone by an object when viewed by either eye singly. Brande & C. -- Parallax of the cross wires (of an optical instrument), their apparent displacement when the eye changes its position, caused by their not being exactly in the focus of the object glass. -- Stellar parallax, the annual parallax of a fixed star.…

The equivalent of an additional circuit or wire, in reality not existing, obtained by certain arrangements of real circuits, as in some multiplex telegraph systems.

own musical instrument somewhat resembling the harpsichord, and consisting of a sreies of wires of graduated length, thickness, and tension, struck by hammers moved by keys. Dumb piano. See Digitorium. -- Grand piano. See under Grand. -- Square piano, one with a horizontal frame and an oblong case. -- Upright piano,…

To open (a lock) as by a wire.

A priming wire for cleaning the vent.

Especially, a small, pointed and headed piece of brass or other wire (commonly tinned), largely used for fastening clothes, attaching papers, etc.

of the arbor or spindle which is its axis. Lantern pinion. See under Lantern. -- Pinion wire, wire fluted longitudinally, for making the pinions of clocks and watches. It is formed by being drawn through holes of the shape required for the leaves or teeth of the pinions.

To destroy the central nervous system of (an animal, as a frog), as by passing a stout wire or needle up and down the vertebral canal.

or crucibles, for stills for sulphuric 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 pr…