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| | Encyclopedia: List of inventors (Site not responding. Last check: 2007-11-07) |
 | | Karl Ferdinand Braun (June 6, 1850 - April 20, 1918) was a German physicist, born in Fulda. |
 | | The diesel engine is a type of internal combustion engine; more specifically, it is a compression ignition engine, in which the fuel is ignited by being suddenly exposed to the high temperature and pressure of a compressed gas containing oxygen (usually atmospheric air), rather than a separate source of ignition... |
 | | Karl Drais (April 19, 1785 - December 10, 1851) was a German inventor and inventor of the velocipede or draisine, an early form of the bicycle. |
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