Home / General Magazines / Science and Technology Magazines / Scientific American /
Scientific American 1880-10-30
129/1099
Recording galvanometer, designed for use in making measurements of transient currents. Also, Andrews' leveling attachment for earth cars: grading equipment used for leveling the earth dumped from transport cars in railroad construction.
Source: Steve Kirch, creator of a wonderful website about SCIENTIFIC AMERICAN in the past
Restoration by: magscanner
- Created on
- Tuesday 27 January 2009
- Posted on
- Tuesday 27 January 2009
- Visits
- 1478