When a rocket motor using solid propellant is lit it continues to burn until all of the fuel is consumed. That is not the case with this design ... to the oxygen tank. There is a nozzle on ...

Every drop of the hydrazine rocket fuel is worth more than its weight in gold ... The technique also might be used to help design satellite fuel tanks that better control the position of liquid ...

and even hybrid rocket engines are becoming passé. We’ve never seen a liquid-fuel rocket build before, so that’s what this roundup evolved into. First up is [Robert Watzlavick], who has been ...