Leonardo, da Vinci, 1452-1519, Rigaud, J. F. (John Francis), 1742-1810, Brown, John William · London : J.B. Nichols and Son ... · leaf 256
he shadows of bodies produced by the rednessof the setting sun, will always be bluish. This isaccounted for by the eleventh proposition,* whichsays, that the superficies of any opake body parti-cipates of the colour of the object from which itreceives the light j therefore the white wall… … m,^^iP of those bodies from which it receives the Hght,which in this case are the sun and sky. But be-cause the sun is red towards the evening, and the-sky is blue, the shadow on the wall not being en-lightened by the sun, receives only the reflexionof the sky, and therefore wiU appear blue; andthe…
Leonardo, da Vinci, 1452-1519 · Painting · Drawing · Perspective
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