births
Josef Ressel, Czech-Austrian inventor, invented the propeller (died 1857)
Related Wikipedia articles
Josef Ressel
Austrian inventor and forester
Josef Ludwig Franz Ressel was a Bohemia-born Austrian forester and inventor who designed one of the first working ship's propellers.Source: Wikipedia (CC BY-SA)
Propeller
Device that transmits rotational power into linear thrust on a fluid
A propeller is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working fluid such as water or air. Propellers are used to pump fluid through a pipe or duct, or to create thrust to…Source: Wikipedia (CC BY-SA)