Alfred Marshall Mayer ( Marshall Mayer ; November 13, 1836 , Baltimore - July 13, 1897 , Maplewood ) - American physicist .
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Member of the US National Academy of Sciences (1872)  .
He taught at various American universities, since 1871 , professor at the Stevens Institute in Hoboken .
Known for his many studies in the field of physics, mainly acoustics.
He invented, by the way, a method of comparing the intensities of sound (1873), he was the first, previously Vinko Dvořák , to conduct experiments on acoustic repulsions (1876); he also proposed an accurate method for determining the number of tuning fork oscillations (1885); In addition, his experiments with floating magnets (1878), his studies of the physical properties of rubber (1891) deserve special attention.
- Gezehus, Nikolai Alexandrovich . Meyer, Alfred // Brockhaus and Efron Encyclopedic Dictionary : 86 volumes (82 volumes and 4 additional). - SPb. , 1890-1907.