Based upon this[1] (so big old grain of sea salt required) it's an urban myth. [1] https://boards.straightdope.com/t/thomas-edisons-front-gate/120679/6 https:/

Based upon this[1] (so big old grain of sea salt required) it's an urban myth. [1] https://boards.straightdope.com/t/thomas-edisons-front-gate/120679/6 https://boards.straightdope.com/t/thomas-edisons-front-gate/... I also wonder at the practicality of pulling out one sporadic push worth of water out of a well. No way is that moving much water.