How radium writes its autograph' C35A

documentary heritage

Photograph of an illustration depicting the properties of radium in rock. Printed text on photograph: "HOW RADIUM WRITES ITS AUTOGRAPH. The dark patches of pitchblende in the rock on the left, when placed over a photographic plate in total darkness, were photo-graphed as patches of light, showing that radium rays are emanating from them."

Whakahounga o Mua: 11 May 2023
Tohu Tuakiri Kē

235886 (Presto content ID)

PH-1984-1-LS78-3-115 (Reference Number)

C35A (Photographer's number)

Wāhanga

Photography

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How radium writes its autograph' C35A
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