IN 1871 M. Jamin communicated to the French Academy of Sciences a short note by M. Gramme, on a magneto-electric machine which gave electrical currents always in the same direction by the revolution ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Ari Davis (ca. 1811-1855) was a ...
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