
Deflection of Secondary Rays Produced by Beta Radiation
1903 · Gelatin silver print
Image: 8.1 × 10.9 cm (3 3/16 × 4 5/16 in.)
The Metropolitan Museum of Art

Antoine Henri Becquerel was a French experimental physicist who shared the 1903 Nobel Prize in Physics with Marie and Pierre Curie for his discovery of radioactivity.
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