Portrait of the American physicist Joseph Henry

Portrait of the American physicist Joseph Henry

H408/0280 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 52.4MB

Downloadable file size: 3.3MB

Price image Pricing

Please login to use the price calculator


Credit: SCIENCE PHOTO LIBRARY

Caption: Joseph Henry. Portrait of the American physicist Joseph Henry (1797-1874) in his early thirties. In 1829 Henry made a much improved electromagnet, with a varnished soft iron core wrapped with many turns of thin, insulated wire. In 1831 he designed the first reciprocating electric motor. In 1830 he discovered electromagnetic induction but was beaten to publication by Faraday. Henry is, however, credited with the discovery of self- induction, and the unit is named after him. In 1835 he introduced the relay which made long- distance electric telegraphy practical, an important step in North America. He was the first director of the Smithsonian Institute.

Release details: Model release not available. Property release not required.

Keywords: electric, electrical, electrical engineer, henry, induction, inventor, joseph, motor, physicist, pioneer, portraits, surname h, telegraph relay

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.