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Astronaut Walter Schirra gets modified calonic test
Astronaut Walter Schirra gets modified calonic test. His balance mechanism (semicircular canals) are tested by running cool water into ear and measuring effect on eye motions (nystagmus) after his 6-orbit flight in the Sigma 7 spacecraft.
Catalog Date: 10 March 1962
Film Type: 8x10
NASA image: S62-06157