File:Helmholtz resonator.jpg

Brass spherical Helmholtz resonator, by Max Kohl, from around 1890-1900, purchased by Dayton Miller. Photograph by brian0918

Source: Physics Dept, Case Western Reserve University.

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Category:Max Kohl AG, Chemnitz Category:Spherical objects Category:Brass objects Category:Golden objects Category:Taken with Panasonic Lumix DMC-LZ2 Category:Helmholtz resonators Category:Media missing infobox template
Category:Brass objects Category:CC-BY-SA-2.5 Category:Files with no machine-readable author Category:Files with no machine-readable source Category:Golden objects Category:Helmholtz resonators Category:Max Kohl AG, Chemnitz Category:Media missing infobox template Category:Spherical objects Category:Taken with Panasonic Lumix DMC-LZ2