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Show Whaeie World lTDoing I As Seen by Popular Mechanics Magazine Motor Cycle Is Cattle Cart for Trips to Market To haul live stock to market, ft farmer in England built a roomy crate on the frame of a motor-cycle sidecar. Tower of Revolving Floors for Parking Automobiles As a solution to the automobile parking problem,' an Ohio inventor offers a circular steel garage "tower," consisting of a number of revolving stories arranged one above the other and each affording space for several cars, which are to be raised to position by an outside elevator. He estimates that a structure of this type with twenty floors, thirty-six feet in diam- The pen which is of strong wood, accommodates ac-commodates a large animal and has a compartment for egg boxes and other produce. A gate at the reft serves as an entrance and a halter tied to the slats holds the animal stea'.l while the machine is in motion. I Fruit Cutter Like Pliers Stamps Out Designs Scalloped edges are placed on grap. fruit and orange halves for preparing "fancy" salads and other dishes with the aid of a pincer-shaped device. Ii has cutting blades shaped to stamp out a design with the precision of a die, and the leverage afforded by th spring handles makes the task easy. Fruit skins can be cut into basket handles and other fancy patterns that Mystery of Arctic Barrier Baffles Radio Experts Since July, 1922, when the Maud, Amundsen's exploration ship, made its dash northward, and became frozen in the ice in latitude 7S north, longitude 1G5 west, the ship's radio has been sending out two messages a day. These messages have been received by nearly all stations in Europe, across the North Pole, but they have not been received in Alaska, the United States or Canada. MacMillan's ship, the Bowdoin, now frozen in at Refuge Harbor, latitude lati-tude 78.30 north, longitude 72.30 west, has found that the only station with which it can communicate regularly is that of Jack Bamsley, station 9BP, of Prince Rupert, B. C, and since Sept. 7, 1923, all press stories from t he Bowdoin and ail messages to and from it have been handled through Barns-ley. Barns-ley. Other stations have heard WNP (the Bowdoin) but all report very unsatisfactory un-satisfactory reception. Why is this? That is the question radio experts are asking. What mysterious, invisible barrier prevents these messages from reaching this country? Is it the influence of the aurora borealis or the magnetic pole that causes a "dead spot" surrounding the pole on this hemisphere? These questions the Aerial League of America has set itself to solve, and the co-operation of all radio amateurs is invited in the teste. Prizes will be offered by the league for the best reports re-ports of experiments by amateuts. The object of the research work is, first, to ascertain the effect of daylight, twilight, and darkness; ice, water, snow, verdure, atmospheric conditions and geological formations on radio. Second, to ascertain and define the location and strength of natural disturbances dis-turbances and interferences acting upon receiving stations all over the ! world, under various conditions. Third, to locate and map the "dead areas" of the earth, and delve into the causes of the mysterious barriers to radio transmission. Fourth, to find out whether radio signals travel equally rapidly through earth, air, and water. eter, would hold two hundred automobiles automo-biles and might provide additional facilities for radio stations, an observation obser-vation or amusement center, or possibly pos-sibly a landing place Jor aircraft or an anchor post for dirigibles. Porous Bronze Bearings Help Prolong Life of Auto Absorbing oils and grease up to 25 per cent of its volume, a copper-tin bronze automobile bearing recently developed is expected to simplify the problems of lubrication and to aid in prolonging a car's life. Under a test, it was found of service in all ordinary uses and in many cases satisfactory for replacing ball and roller types. Thousands of tiny pores give the metal the qualities of a blotter or a wick. In a demonstration, a kerosene lamp was fitted with a bushing of this material, instead of a cotton wick, and burned m long as the liquid lasted. . only a skilled person could achievt with an ordinary knife. It is madj of durable metal, nickel plated, an4 the blades are. strongly riveted to th huidles. |