But there is another kind — a very old kind — called a pulsejet. [Integza] shows how he made one using 3D printed parts and also has a lot of entertaining background information. You can see ...

That was actually the wave engine, a contemporary variation of the pulsejet engine, which was first used on German V-1 guided ...

Hence the Trembita, which is one of several missile projects the country hopes will ignite a resurgence in its domestic industry. In the Soviet era, Ukraine was a world leader in space and rocket ...