Related Images
This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Looking for more info about this image?
Try a Google Reverse Image Search for it.
Try a Google Reverse Image Search for it.
Keywords from Image Description:
Photographing Sound in . rare photograph taken at Volta Laboratory by J. Harris Rogers friend of Bell and Tainter Smithsonian photo i. of the procedure used is found on page of Tainter's unpublished autobiography There Tainter quotes Chichester Bell as follows jet of bichromate of potash solution vibrated by the voice was directed