Not Finding Your Answer?
Post It On KidzTalk Homework Help
Post It On KidzTalk Homework Help
Report a search problem
mobile version
Copyright 2005-2024 KidzSearch.com
Propulsion is the use of force to make movement.
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. view more...