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Photograph was edited for publication purposes.; Title supplied by cataloger. Photograph caption dated March 5, 1934 reads, "Dr. Milton Metfessel, at right, of the University of Southern California, demonstrates a new device, a strobo-camera, which "photographs" songs of birds and thus records range and vibrations of their voices for scientific analysis. The singing of birds in the cage (figure 1) causes a neon light (2) to respond with light vibrations. These are picked up by the apparatus pointed out by figure 3 and recorded on a whirling disc (4) with a stream of dots. Just above is a record of a bird's song made by the device. The dark line drawn through the path of dots indicates the vibrations. At left is Robert Ruhl, student."
1 photographic print :b&w ;20 x 25 cm. Photographic prints
00095930 Herald Examiner Collection HE box 102. CARL0005059186 http://220.127.116.11/cdm/ref/collection/photos/id/33271
University of Southern California--Faculty Technological innovations--California--Los Angeles College teachers--California--Los Angeles College students--California--Los Angeles Birds--California--Los Angeles Acoustic streaming Acoustic imaging Los Angeles Evening Herald and Express photographs Herald-Examiner Collection photographs