I am curious about a drive that uses light as its means of propultion. Is it possible to create? Or is there some law of physics that prevents it from being achieved? I have just finished reading through my physics books and have been thinking about this. My knowledge of physics is limited, but still expanding. I wish to know more about a light drive. About the possibilities of getting one to work. It seems simple enough, but then the calculations are harder to get through. I may be well out of my league, but I thought that it would be worth asking. Regards, J.