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Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Sunday, 22-Nov-2020 21:40:53 UTC Stephen Sekula From NobelPrize https://twitter.com/NobelPrize on Twitter: When Frederic Joliot and Irene Joliot-Curie bombarded a piece of aluminum with alpha particles in 1934, a new kind of radiation was discovered that left traces inside an apparatus known as a cloud chamber. It was the first time a radioactive element had been created artificially. https://twitter.com/NobelPrize/status/1330410950239903746/photo/1 https://chirp.cooleysekula.net/attachment/69309