East German (DDR) postage stamp (1979): Otto Hahn (1879 – 1968) German chemist and pioneer in the fields of radioactivity and radiochemistry......

- Image ID: KRR6EX
PjrStamps / Alamy Stock Photo
Image ID: KRR6EX
East German (DDR) postage stamp (1979): Otto Hahn (1879 – 1968) German chemist and pioneer in the fields of radioactivity and radiochemistry. Equation showing nuclear fission chain reaction

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