What would be the force on a beam of particles from focused sunlight?
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Feb4-10, 08:32 PM
I'm going to go ahead and ask the obvious question....can you attach an extremely powerful flashlight to a spaceship in order to accelerate it without any propellant?
but dude it would be sooooooooooooooooooo unefficient or you would have to have a flash light 10square miles to have eny reasonable propultion