 |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| • HOME • ABOUT • CATEGORIES • USE OF TEXT AND IMAGES • NEWSLETTER   
|
propulsion
The means by which a body's motion can be changed. Jet propulsion works by ejecting matter from a vehicle. Two special cases of this are rocket propulsion and duct propulsion. In the former, thrust is produced by ejecting stored matter called the propellant. Duct propulsion involves air-breathing engines that use mostly the surrounding medium together with some stored fuel.
Related category
• AERODYNAMICS AND AERONAUTICSAlso on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History