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Water wheel. Engraving of a water wheel in the 18th century. The wheel was used to power pistons (at far left and far right) which pumped water from a river to a waterworks. This water wheel could pump over 18 million litres of water a day. Image of a water wheel on the River Thames at London Bridge in London, UK, in 1749. It had been built by the London Bridge Waterworks Company; this was the first water company in Britain, having been established in 1581. Image taken from Knowledge and Pleasure (Volume 5, 1749).
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