Propulsion tools

means of creating force leading to movement
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Propulsion is the use of force to make movement.[1]

For ground propulsion the first instrument was the wheel.

For water propulsion pole, paddle, oar and sail have been used. Nowadays the most common types are underwater propellers. Sails are still common, and historically represented the most important form of early propulsion for large ships.

For air propulsion, the most common types are propeller and jet engine. Others have been used experimentally.


  1. A Dictionary of Aviation, David W. Wragg. ISBN 9780850451634, 1st Edition Published by Osprey, 1973 / Published by Frederick Fell, Inc., NY, 1974 (1st American Edition.), Page 216.