Labels:text | screenshot | font OCR: This discussion of atmospheric color applies equally to Leonardo's scientific and artistic activities: "I say that the blue which is seen in the atmosphere is not its own color but is caused by the heated moisture having evapo- rated into the most minute, imperceptible particles, which the beams of the solar rays attract and cause to seem luminous against the deep, intense darkness of the region of fire that forms a covering above them. And this may be seen, as I myself saw it, by anyone who ascends Mon Boso, a peak of the Alps that divide France from Italy, at the base of which
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