What Did Joseph Henry Invent?Joseph Henry independently discovered electromagnetic self-induction in 1831, however the credit goes to Michael Faraday for being first. Henry is also credited with the invention of an electric motor, however, again not the first.
In 1830, Joseph Henry, demonstrated the potential of a William Sturgeon device for long distance communication by sending an electronic current over one mile of wire to activate an electromagnet which caused a bell to strike. Thus the electric telegraph was born, however, other inventors made a commercial success of that invention.
Joseph Henry's pioneering work in electricity and magnetism helped bring about the invention of the telegraph, the electric motor, and the telephone. "But for Joseph Henry, I would never have gone ahead with the telephone." - Alexander Graham Bell
Joseph Henry - The HenryIn 1893, Joseph Henry's name was given to the standard electrical unit of inductive resistance, the "henry".
- History of Electricity - The Work of Joseph Henry
Joseph Henry was a researcher in the field of electricity whose work inspired inventors.
- Joseph Henry & The Lighthouse Board
One of America's top scientists served on the Lighthouse Board, Joseph Henry, founder of the Smithsonian Institution, experimented with the effects of sound and light over water.
- Joseph Henry
Biography and extracts of writing.