Becquerel phosphoroscope. This device, invented by the French physicist Alexandre-Edmond Becquerel (1820-1891), is used to measure the time taken for

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Becquerel phosphoroscope. This device, invented by the French physicist Alexandre-Edmond Becquerel (1820-1891), is used to measure the time taken for a phosphorescent material to stop glowing. Artwork from the tenth volume (second period of 1892) of the French popular science weekly 'La Science Illustree'.

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Size: 4551px × 3861px
Photo credit: © Science Photo Library / Alamy / Afripics
License: Licensed
Model Released: No

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