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The Leonardo Notebook - Pages 13 and 14

Image of Leonardo's Notebook - Pages 13 and 14
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Studies of reflections from concave mirrors ff.87v-88

Here Leonardo is again dealing with the heat-producing potential of mirrors. Some of these studies may be linked to later work carried out by Leonardo during his stay in the Vatican, in 1515, when he was developing a plan to employ solar energy for industrial purposes. His attempts to perfect a burning mirror then led him to claim that 'with this any dyer's cauldron can be made to boil; and by it a pool will be heated, because there will always be boiling water'.

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