Image / Strobo-camera demonstration

Have a question about this item?

Item Information. View source record on contributor's website.

Strobo-camera demonstration
Alternative Title
Los Angeles Herald Examiner Photo Collection
Date Created and/or Issued
Contributing Institution
Los Angeles Public Library
Los Angeles Public Library Photo Collection
Rights Information
Images available for reproduction and use. Please see the Ordering & Use page at for additional information.
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
Herald Examiner Collection
HE box 102.
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

Explore related content on Calisphere: