Identified! [Vivian Leroy Crisler (1885-1953), an acoustics researcher at the National Bureau of Standards, Washington, D.C., looking over a loud speaker horn used in sound penetration tests] (LOC)
| Uploaded by | The Library of Congress |
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| License | No known copyright restrictions |
| Comments | 19 |
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| Views | 33,802 |
| Date taken | 1923 |
| Date uploaded | 2015-10-02 |
| Tags | libraryofcongress, dc:identifier=httphdllocgovlocpnphec32696, xmlns:dc=httppurlorgdcelements11, nationalbureauofstandards, usbureauofstandards, acousticalresearch, acoustics, physicists, vivianleroychrisler, vlchrisler, rotatingloudspeaker, mysterysolved |
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