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 ...

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 ...

Toward the end of the 19th century, electromagnetism became popular in the creation of legitimate medical devices as well as quack therapeutics. Many companies profited by inventing instruments, ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

MOAB, Utah—First things first: This cliff-climbing battery-electric Jeep concept vehicle is not headed for production, despite the hopes of many Jeep fans assembled in Moab, Utah, for this year’s Jeep ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

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 ...

Artifact spotlight: 19th-century Magneto-Electric Machine Jun 18, 2017 0 Davis & Kidder's Patent Magneto Electric Machine VCU LIBRARIES ...

FROM this property of the Gramme machine it may be employed to measure by the method of opposing currents any electromotive force. For this purpose it is only necessary to ascertain the velocity of ...