Electricity

Technology

Thomas Edison

Prolific American inventor of the phonograph, practical light bulb and motion-picture camera

1847 – 1931

Science

Nikola Tesla

Serbian-American inventor of the alternating-current induction motor

1856 – 1943

Science

Michael Faraday

Self-taught scientist who discovered electromagnetic induction

1791 – 1867

Technology

Werner von Siemens

German inventor and industrialist who founded Siemens

1816 – 1892