https://gregladen.com/blog/2010/07/03/water-wheel/ Sun, 04 Jul 2010 02:06:46 +0000 hourly 1 https://wordpress.org/?v=6.4.6 https://gregladen.com/blog/2010/07/03/water-wheel/#comment-519533 Sun, 04 Jul 2010 02:06:46 +0000 http://scienceblogs.com/gregladen/2010/07/03/water-wheel/#comment-519533 It’s a noria, Greg. Part of it is a waterwheel, just like part of your car is the engine. The waterwheel part is undershot paddle, no more than 30% efficient (and probably far less) but obviously enough for the task. Poncelet would harvest more spark… thanks for the pic!

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