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Photograph was edited for publication purposes.; See image #00095930 for photograph that shares this caption.; 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 cages (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 ;18 x 36 cm. Photographic prints
00095932 HeraldÂ Examiner Collection HE box 102. CARL0005059187 http://22.214.171.124/cdm/ref/collection/photos/id/33272
Technological innovations--California--Los Angeles Birds--California--Los Angeles Acoustic streaming Acoustic imaging Los Angeles Evening Herald and Express photographs Herald-Examiner Collection photographs