Friedrich Heinrich Philipp Franz von Hefner-Alteneck (April 27, 1845 in Aschaffenburg – January 6, 1904 in Biesdorf near Berlin) was a German electrical engineer and one of the closest aides of Werner von Siemens.
The company dates its early beginnings 1847 to a small family business in Berlin, co-founded by Ernst Werner von Siemens.
It was defined by Werner von Siemens as the resistance of a mercury column 1 metre long and uniform 1 mm2 cross sectional area at 0 degrees Celsius.
Siemens | Johann Wolfgang von Goethe | Otto von Bismarck | Werner Herzog | Alexander von Humboldt | Wernher von Braun | Carl Maria von Weber | Herbert von Karajan | Hans Werner Henze | Gebhard Leberecht von Blücher | John von Neumann | Lars von Trier | Ferdinand von Mueller | Paul von Hindenburg | Alexander von Humboldt Foundation | Heinrich von Kleist | Anne Sofie von Otter | Werner Heisenberg | Erich von Stroheim | Rainer Werner Fassbinder | Max von Sydow | Justus von Liebig | Siemens & Halske | Hermann von Helmholtz | Franz von Papen | Die Meistersinger von Nürnberg | Carl von Clausewitz | Von Ryan's Express | Richard von Weizsäcker | Theodore von Kármán |
Georg von Siemens is a nephew of the inventors and industrialists Werner, William, and Carl von Siemens.