The Leonardo Notebook - Pages 7 and 8

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Studies of mirrors ff.84v-85

Making use of the work of medieval authors, such as the 13th-century philosophers Witelo from Silesia and John Pecham, Archbishop of Canterbury, Leonardo undertook detailed studies on optics and the investigation of mirrors.

The notes and diagrams on these pages come from a series of studies of reflections from curved mirrors. Note that the drawings and notes on the right-hand page are entered upside down.