RADIO-WIRELESS.

Dominion, Volume 3, Issue 742, 15 February 1910, Page 5

RADIO-WIRELESS.

A DISCOVERY. - RADIUM-BEARING' ORE: ASSISTS ;-v transmission. : By Telegraph—Press Association-OopyrSjht , Adelaide, February 14. , . Quito an unexpected discovery of the properties of radium-bearing.mineralylias just been -.made .in ;connection', with, the installation ', of telegraphy \ between Melbourne and Clifton Springs. It has been. found, that, by the use of radioactive ores; in the. installation, the transmission of messages has ; been strikingly facilitated. Stops aro to bo taken to protect the discovery. '■ - Tht, first experiments: were made wit' Bohemian pitch-blende, but by an accident some ore was, used from the Radio Hill Mine at Olary. This demonstrated that through some unknown quality So. Australian carontite 1 ore, which'contains 50 per cent, of uranium oxide, Vis much superior 'to V Bohemian , pitch-blonde for purposes of wireless tele'graphy. . . . [In -the British Admiralty proceedings against, - the ■ .Vernondraughtsman Knowlden—the 'result, of which is - repotted in : a cablegram in' this issue—the evidence 6howed that, in connection withsome improved types of detector,' certain minerals were used. Ono of, the instruments ■ found. 1 in -defendant's possession was a galena (lead . ore) . detector.]