Laxey of the Isle of Man, was built in 1854 to pump water from the Laxey mine shafts. Now a tourist attraction, it remains the largest working waterwheel in the world. Designed by Robert Casement, it is in diameter and wide. It revolves at about 3 rpm. The mines employed over 600 miners at their peak, producing lead, copper, silver and zinc, until they closed in 1929. The Wheel was owned by Edwin Kneale from 1939 to 1965; he saved it from being dismantled and ran it as a tourist attraction, before passing it on to the Manx nation, with the
Waterwheel Falls Waterwheel Falls Waterwheel Falls is a waterfall in the Sierra Nevada of California, located in Yosemite National Park. It is the largest of the many waterfalls of the Tuolumne River. Its upper part contains a series of small ledges, each of which creates a small plume as the water is deflected away from the rock face. An extraordinary phenomenon appears at the first and largest of these ledges during the high-water season of early summer. Strong gusts of wind can lift part of the spray and blow it back upward, causing it to reenter the falls above the ledge. This