85.0 MB (6.9 MB compressed)
4455 x 6671 pixels
37.6 x 56.4 cm ⏐ 14.8 x 22.2 in (300dpi)
CHRIS KNAPTON / SCIENCE PHOTO LIBRARY CHRIS KNAPTON / SCIENCE PHOTO LIBRARY
Wind turbine used to generate electricity from wind. They are an important environmentally- friendly alternative to fossil fuel. Most machines are designed to operate in windspeeds between 21 and 60 kilometres per hour. The blades have to be turned to face directly into the wind to work efficiently. The sheep grazing at lower centre indicate how the turbines have a smaller impact on the environment than a power station.
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