Einstein with Edwin Hubble and Walter Adams at the Mount Wilson Observatory
Einstein visited Caltech for the first time in the winter of 1931, to discuss the cosmological implications of the theory of relativity with physicists and astronomers at Caltech and at the Mt. Wilson Observatory. Here he is looking iinto the eyepiece of the 100-inch Hooker telescope.
From Einstein footage (A/V Archive). CD master in CD Archive.
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