ADIO aerials and other wireless subjects have hee. used so far on the postage stamps of Belgium, Guatemala, Honduras, the U.A.S.R., Italy, Newfcundland, Brazil, Columbia, Chili, ‘the United States,. Dominica, the Belgian Congo, and Czechoslovakia. "GANCTIONLESS sunshine" is now being enjoyed in Milan, according to a .correspondent, who reports that an engineer there has evolved a sun dynamo with the help of several hundreds of photoelectric cells. Enough energy is obtained to drive a small motor. .
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https://paperspast.natlib.govt.nz/periodicals/RADREC19360605.2.54
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Radio Record, 5 June 1936, Page 43
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76Untitled Radio Record, 5 June 1936, Page 43
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