- Four-stroke Cycle / Otto Cycle
Offers details on the mechanics of Nicolaus Otto's four-stroke cycle engine.
techni.tachemie.uni-leipzig.de/otto/otto_g0_eng.html
- Invent Now: Nicolaus August Otto
Profile of the German engineer who invented the first practical alternative to the steam engine.
www.invent.org/hall_of_fame/116.html
- History of the Otto-Langen Engine
Describes the development of the atmosphere engine, designed and produced by Nicolaus Otto and Eugene Langen between 1864 and 1878.
members.aol.com/wgrenning3/ottolangenhistory.html
- Foundation of the Modern Engine, The
Profile and photo of Nicolaus Otto. From the European Automotive Hall of Fame.
www.autonews.com/files/euroauto/inductees/otto2002.htm
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