27.3 MB (27.0 MB compressed)
3071 x 3103 pixels
25.9 x 26.2 cm ⏐ 10.2 x 10.3 in (300dpi)
MIKKEL JUUL JENSEN / SCIENCE PHOTO LIBRARY MIKKEL JUUL JENSEN / SCIENCE PHOTO LIBRARY
Controlling the weather. Block artwork showing methods of controlling weather such as rain. Clouds (left) approaching a city (right) are 'seeded' by ground-based missiles or by aeroplanes. This causes the clouds to release their water in the form of rain (centre) before they reach the city. Cloud seeding, used in various forms since the 1950s, is mostly used to increase precipitation in agricultural or drought-prone areas. The most common seeding materials are silver iodide and dry ice.
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