This is a bit of a crazy idea for generating energy I just thought of. It would involve rediculous amounts of materials and construction anyway so this is just to ask about the theory behind it really. Our planet is an oblate spheroid and so the distance from the North to South poles and is about 42KM less than the diameter spanning the equator. (From research on the internet) A siphon will work when water is being moved to a point lower than where it is taken from. So my idea is: Theoretically if you had: A vertical tube submerged slightly in the sea at the equator say 1 Meter high, Another longer tube not submerged at some point near the north pole. Imagine you joined the top of the tube at the equator with the North Pole one following the curvature of the Earth 1 Meter above sea level, adding to it slightly as you went along to meet the height of the taller tube at the end. Because the Earth being an oblate spheroid, the end of the tube at the North Pole would actually be much lower relatively than where water would be drawn from near the equator. Also because it would be closer to the centre of the Earth the pull of gravity would get greater as you travelled towards the end at the North Pole. If you sucked water through the tube at the North Pole end until it came out, in theory would it then come out continuously? I realise that the North Pole is frozen over lol; it would have to be a location close by which isn’t.

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