Thread
:
Jolla Tablet Refunds (latest developments)
View Single Post
Ken-Young
2015-12-07 , 22:33
Posts: 387 | Thanked: 1,700 times | Joined on Feb 2010 @ Cambridge, MA, USA
#
2536
Originally Posted by
billranton
But a jet's thrust pushes against the air, [...]
Not really. A jet engine is a "reaction engine". It propels the aircraft forward by expelling mass, which must result in a forward force on the aircraft, via Newton's third law. It would work just as well in space, if it carried an oxidizer along with the fuel (which would make it a rocket engine).
Ken-Young
View Public Profile
Send a private message to Ken-Young
Find all posts by Ken-Young