The conventional rocket engine uses a bell-shaped nozzle at the bottom of the apparatus. This allows the rocket to ignite and funnel the force of its burning fuel downward in a linear direction.

which is determined by the shape of their bell-shaped exhaust nozzles. These nozzles adjust the pressure and flow of gases to maximize thrust. However, as a vehicle’s altitude and speed change ...

How worn are your nozzles? It’s a legitimate question, so [Stefan] set out to find out just how bad 3D-printer nozzle wear can get. The answer, as always, is “It depends,” but exploring the ...

Older fuel pumps may reflect an earlier color scheme, or have had nozzle repairs in which a different colored part was installed. And, to debunk another belief held by some consumers, the shape of ...