i want to know more about jet engine?

Answer 1

Try any site like this:

http://inventors.about.com/library/inventors/blhowajetengineworks.htm

or this:

http://travel.howstuffworks.com/turbine.htm

Answer 2

All jet engines, which are also called gas turbines, work on the same principle. The engine sucks air in at the front with a fan. A compressor raises the pressure of the air. The compressor is made up of fans with many blades and attached to a shaft. The blades compress the air. The compressed air is then sprayed with fuel and an electric spark lights the mixture. The burning gases expand and blast out through the nozzle, at the back of the engine. As the jets of gas shoot backward, the engine and the aircraft are thrust forward.

Answer 3

Here's some help. You are referring to the gas turbine engine on airplanes I expect, and not rockets. But, if you dig around this link you will find info on them as well.

http://travel.howstuffworks.com/turbine.htm

Answer 4

http://www.geae.com/education/engines101/

Answer 5

Here you can build your own.