What is the difference between a liquid propellant rocket and a solid propellant rocket?
Liquid propellant rockets use a fuel that is liquid at room temperature, such as kerosene, hydrazine, and liquid hydrogen. Solid propellant rockets use a fuel that is in a solid state, such as ammonium perchlorate. Solid propellant rockets are typically cheaper and easier to build than liquid propellant rockets, but they cannot be shut down […]
