I have long had the opportunity of observing many different [atmospheric effects], and once, above Milan, over in the direction of Lake Maggiore, I saw a cloud shaped like a huge mountain made up of banks of fire, because the rays of the sun which was then setting red on the horizon had dyed it with their colour. This great cloud drew to itself all the little clouds which were round about it. And the great cloud remained stationary and retained the light of the sun on its apex for an hour and a half after sunset, so enormous was its size. And about two hours after night had fallen there arose a stupendous and phenomenal wind storm."
- Leonardo da Vinci via Leonardo da Vinci's Note-Books Arranged And Rendered Into English by Edward Mccurdy, 1923. (Book 2, Nature, p. 125).
Inset left is a chalk drawing by Leonardo - A Storm Over an Alpine Valley, 1480. A facsimile of this drawing accompanies the artist's text in Mccurdy's translation. There appears to be a few versions of this odd image on the web, mostly in red chalk. For example, this one was dated circa 1509.
I don't think that this drawing represents the mountain-shaped cloud Leonardo describes in his notebook. The cloud in the drawing seems to have the anvil-shape of a certain variety of cumulonimbus: the incus.
Admittedly, the drawing is difficult to make out. But, if you click on the image, you might find what is possibly the image of the artist with his beard and hat on the upper left side of the cloud - portrait, inset left - Leonardo's cameo appearance in the clouds!_____________________________________________
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The Temple of Venus featured in one of a series of illustrations by Walter Crane for Edmund Spenser's epic poem The Faerie Queene, 1590. |
You should make steps on four sides by which to ascend to a plateau formed by nature on the summit of a rock; and let this rock be hollowed out, and supported with pillars in front, and pierced beneath by a great portico, wherein water should be falling into various basins of granite and
(Continued below the jump...)