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  • 1975-1979
  • 1965-1969  (1)
  • 1967  (1)
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  • 1975-1979
  • 1965-1969  (1)
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    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 214 (1967), S. 99-100 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The limits of high frequency sound perception are said to lie at 20 kc/s at 5 yr of age and to fall to 16 kc/s at 30 yr arid 10 kc/s at 60 yr of age4. At, or slightly above, these frequencies, some individuals 'hear' arid some 'feel' sound waves. At still higher frequencies all 'feelings' disappear ...
    Type of Medium: Electronic Resource
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