History of acoustics 1680, Robert Hooke , oxford univ, flour, bow 1738, beer glasses, glass-spiel, verrillon (also in india, the jal tarang, much older) 1748, Leonard Euler, trig series 1761, Ben Franklin, then glass harmonium http://www.finkenbeiner.com/catalog.html 1787, Ernst Chladni (1756 -- 1827) the nodal lines and antinodes, physics of sound, acoustics, sand, bow 1807, Joseph Fourier (1768 -- 1830) heat equation 1811-16, Sophie Germain (1776 -- 1831) chladni contest Refs: Abraham, MS#47, 1988, High Frontiers: Visual Musical Instruments; also ms105sec2 end