APPLIED SCIENCE

Evening Post, Volume CIV, Issue 73, 23 September 1922, Page 12

APPLIED SCIENCE

RECENT FRENCH INVENTIONS.

The French Government is paying particular attention at the present time to the advancement of science, and a bureau ,' lias been inaugurated at Bellevue, near Paris, t<>.,',further this purpose. It has '" now given ati account of its work since • the Armistice .to'the Congress at Montpellier, states the Paris correspondent. of ; the " Manchester 'Guardian." A great effort is being made in France, ■' encouraged by the Government, to find a I practicable- substitute . for petrol as a motive power. An important report on the whole subject is in the course of preparation. Work has been done on crude ' oil, on tidal power stations, and. dn industrial windmills. . - _ A new type of electro-magnet, which is ■ said to have given the most intense mag- : netic field in the world; is being per- . fected by Professor, Cotton, at Bellevue. M. Dufour has invented an oscillo- - graph, used in cinematographing, with - electric or magnetic variations occurring '". at the rate of i million a second. Im- • provements in colour and relief cinemaior • graphy are also announced. ' In marine engineering, a ship worked • by aerial propeller, transferring t the energy so obtained-from the wind to a • submerged propeller, enabling the boat to ' sail directly against a",head-wind, has Smaller inventions, such as a submarine match to enabje divers to relight their blowpipes without coming to the surface, are also revealed.