| Description | Newscutting; article from The Ilustrted london News, 11 March 1933.
' Photographs that prove the existence of positive electrons' One photograph shows a cloud photograph of the tracks of cosmic rays, showing (on the right) two tracks curved markedly to the right, which must be due to positive electrons. Second photograph is of the tracks of cosmic rays passing through a lead plate, showing (at the top) two tracks bent markedly to the right and therfore due to positive electrons. [1p] |