Archives Catalog Entry
Cloud chamber used In cosmic-ray studies
Used in 1931-1948 in Pasadena, on the summit of Pike's Peak, and in a B-29. In it were discovered the positive electron (positron) and the positive and negative mesotron (muon). Gift of Carl D. Anderson.
Anderson, Carl David (Physicist)
Jan. 1, 1930
LENGTH: 3.5 high, 8 inches diam.
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