SHEILA TERRY / SCIENCE PHOTO LIBRARY SHEILA TERRY / SCIENCE PHOTO LIBRARY
Solar panel. Boys playing with a solar panel being used to power a water fountain (right). The solar panel can be moved by the public, as the boy on the right is doing, to adjust the amount of sunlight that falls upon it. This therefore varies the amount of water pumped out of the fountain. Photographed at the Granada Science Park, Granada, Spain.
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