<p style='text-align: justify;'>Blackett and Occhialini's automated Cloud Chamber with coincidence counters of 1932. Following Blackett's success in imaging the nuclear transmutation of nitrogen into oxygen, he and Occhialini improved the cloud chamber to take images only when signifciant events were registered by the coincidence technique developed by Bothe and Kohlhorster. This instrument was used for cosmic ray and particle physics studies. Blackett was awarded the 1948 Nobel Prize in Physics for his work with the automated cloud chamber.</p>
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