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ID number: BIRRC-P0247 Institution: Research and Cultural Collections Named collection: Historic Physics Collection Artist / Maker: Societe Centrale de Produits Chimique Title / Object name: Gold Leaf Electroscope - Curie Object type: Electrical instrument Place made: Paris Materials: Brass with glass windows, on heavy stand on wooden base Measurements: 27 x 26 x 34 cm |
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An electroscope is used for detecting electric charge. A gold leaf is hung against a metal plate and if the plate is charged the leaf will be deflected away from it. In the presence of ionising radiation the charge will leak away and the leaf will fall. In this instrument the electroscope is connected to a pair of plates in the attached chamber, and it would have been used to monitor ionisation in this volume. There is a mounting for a microscope to observe the leaf, but the microscope is missing. Inscriptions / Translations: On base of chamber: Societe Centrale de Produits Chimique |
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