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Solar Electric
Unplugged
Solar cells are especially useful in remote locations. Engineers showcased the new technology in the 1950s and '60s, choosing reliable and long-lasting solar cells to power satellites on long-term space missions. On Earth, photovoltaics are often used in places where electric power lines are impractical, undesirable, or nonexistent. Solar power has many applications, from traffic signs, telephone relays, and navigation equipment to wilderness cabins and recharging stations. |