🛠️ Invention or technique

Electric motor

Motor eléctrico

Date
1821-1834 · confidence high
Place
London (Royal Institution), England, United Kingdom
Credited to
Michael Faraday (electromagnetic rotation, 1821); Moritz von Jacobi (practical motor, St Petersburg, 1834)
People
👤 Michael Faraday1791–1867👤 Moritz von Jacobi1801–1874
Field
Matter & energy

⚠️ Disputed: the sources disagree.

What it is

Faraday demonstrated the continuous rotation of a conductor around a magnet, the first conversion of electricity into motion. In 1834 Jacobi built the first rotating motor with useful power, which in 1838 propelled a boat on the Neva.

Priority is disputed between Faraday (principle), Jacobi (practical motor), Thomas Davenport (US patent 1837, Vermont) and William Sturgeon (commutator, 1832).

What it led to

  • Electric traction and tramways (1880s)
  • Industrial electrification and motors in every machine (20th century)
  • The concept of the electromagnetic field
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Sources✓ verified 2026-09-25