WIRELESS WATCHES.

Clutha Leader, Volume XL, Issue 73, 20 March 1914, Page 1

WIRELESS WATCHES.

W hili' Pari* nossmux in ilie w ire!o.ss station of tlx* Eilfel 'J own- one <f the timepieces oi Europe, it would seem a waste of good energy if the Parisians themselves could 1101 make use oi the wireless signals sent out from it with such precision and frequency. A French inventor lias responded to the need by inventing tho "uidophone," which is a wireless wave detector or recei.ver small enough to lie carried in the pocket—tlw waistcoat pocket of anyone not too regardful of appearanves. Equipped with this, tho Parisian can "pick up" the wireless time signals sent out tiy the tower, and may absorb at the same time a vast amount nf meteorological and other data if he will but be at paiiis to learn the Eiffel code. Tins <,.ndopliotKi is composed of a telephonic receiver of i/K) ohms resistance, on which is mounted a wirelesw detector (Pellin's patent). Two wires, each about UJ feet long, which can he reeled up and: wiuoli are terminated by hooks, complete an apparatus weighing in all less than half a pound. In order to intercept the Eiffel signals it is sufficient to hook one of the wires to a gas pipe or water pipe (which runs to earth) and utilise the other wire as au antennae. The antennae being the net in which the signals' are caught, its form and efficiency vary with the distance from the Eiffel rower. Thus in the environs < f Pa ris it, is enough to attach the second wire to any mass of metal, the railings of a balcony, a bath tub, the wire oi an electric bell, even to the gilt frame of a mirror. Further iway it becomes necessary to lengthen both wires by the addition of a lew yards < t insulated electric wire; but this can he dispensed with if the "ondtiphoiie'' can be joined up to an ordinary telephone line. When that tail bo done, the "ondophone" will pick up signals from the Eilf'el Towei all over France. Hut oven when walking in tho country about Paris, where, attempts to attach to a telephone wire might bo attended with difficulties of various kinds, one can still pick up signals by connecting one wire of the ''ondophoiie" with a kniie stuck in a tree (antennae) and trailing the other wiro on the ground.