National Academy Of Sciences Weather And Climate Herbert DanskaOriginal vintage National Academy of Sciences (NAS) poster Weather & Climate "The air moves like a river and carries the clouds with it." Da Vinci from a series of six posters created in 1958 by the artist Herbert Danska, depicting two silhouettes in white pouring water droplets into the sea with the bold title text and quote next to the dark clouds and swirling pink hair of the lady above, the sea waves below a green sphere of the earth in the centre