Solar Boilers use large parabolic mirrors to focus sunlight on a fluid fuel, most often cited as water or liquid hydrogen, superheating it and expelling the resulting steam for thrust. The sunlight is collected and focused using large, lightweight parabolic mirrors. These mirrors are either silvered balloon-like inflatable structures or thin sheets of silvered plastic supported by lightweight inflatable trusses. These focus the sunlight on either a window or open area of the engine, either... Continuar leyendo