Home / General Magazines / Science and Technology Magazines / Scientific American /
Scientific American 1881-01-01
138/1099
Bell's photophone. The articulating photophone -- the transmitter; the selenium receiver.
Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past
Restoration by: magscanner
- Created on
- Wednesday 19 August 2009
- Posted on
- Wednesday 19 August 2009
- Tags
- communication, image, telephone
- Visits
- 1511