Hello. I've had this idea floating around in my head for a long time and lately it's really been bugging me. Say you had a tray of water, and suspended another tray above that, and then you connected the two trays vertically with some very thin tubes, say, 0.2mm in diameter. Now, due to capillary action, water should travel up the tubes in to the top tray. If we have an outlet that allows the water in the top tray to freely pour back in to the bottom tray, the water would travel back down. My first question is: with this set up, would this create a perpetual cycle of water between the trays? Next, suppose that it does create such a continuous waterfall, and we put a waterwheel in the path of the falling water, making it turn. Now we attach an electric generator to the wheel, we would produce energy. My second question is: given the number of tubes, their diameter, the diameter of the waterwheel and the electricity generation capacity of the generator, how do you calculate how much electricity the setup would produce?