THE WIRELESS WORLD.

Wairarapa Age, 28 August 1930, Page 3

THE WIRELESS WORLD.

RADIO NEWS AND NOTES. As a result of an official inquiry it has been established that there are 2228 schools in France .provided with wireless sets, without counting private sets owned by the masters, which are often used for the benefit of the pupils. It is universally admitted that useful additional instruction can be given in an interesting manner by this means. This year’s National Radio Exhibition at London will commence on September 19. The introduction of demonstration rooms, which was- the most successful innovation of last year’s show, will be repeated. Demonstrations will also be permitted on the stands, with loudspeakers connected to a common output.

To prevent digging up the streets over a considerable area a frame radio aerial and an instrument resembling a portable wireless set are being used in London to locate underground water mains. When the aerial is directly above the pipe the instrument transmits a buzz which is heard by the operator through earphones.

New Zealand listeners whose entertainment is marred by electrical interference will be interested to learn that a device for locating the .source of such disturbances has been perfected by two American engineers. The instrument has the appearance of an ordinary portable receiver, and includes an oscillograph which records the wave-form of the intruding signal. The inventors hope to supply an interference detector to every municipal authority in the United States.

Trouble has arisen in America concerning the inclusion of a statement in the census forms: “Have you a radio?” If radio sets are included, remark those protesting, why not pianos, vacuum cleaners, washing machines and a number of other domestic appliances whose manufacturers would welcome statistics? It is understood that radio was piloted through the census mesh by influence not unconnected with the Radio Manufacturers’ Association.

Recently an attempt was made to persuade the British Broadcasting Company to include talks on spiritualism in their programmes. Despite a definite refusal to accede to such a re- ' quest, those interested are making a further endeavour, this tune in connec-

tion with spiritual healing through organised prayer. It is alleged that a 'icommittee of distinguished physicians and surgeons “on the other side” has been active for some time past, and 'has decided on a plan of campaign for a general toning up of the health ■of humanity through stimulating 'prayer by wireless!