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68.7 MB (3.6 MB compressed)
4410 x 5448 pixels
37.3 x 46.2 cm ⏐ 14.7 x 18.2 in (300dpi)
MARTIN BOND / SCIENCE PHOTO LIBRARY MARTIN BOND / SCIENCE PHOTO LIBRARY
Vertical axis wind turbine on the roof of a block of flats. The triple helix shape of this turbine enables it to catch the wind from any direction, unlike horizontal axis turbines which swivel to face the prevailing wind. Photographed in Wolverton, Buckinghamshire, UK.
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