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"Solar Impulse", sun-powered aircraft, unveiled in Switzerland
Duebendorf, Switzerland - Piccard: "It will demonstrate the effectiveness of renewable energies"
The "Solar Impulse", sun-powered aircraft realized by Bertrand Piccard, has been presented today at Duebendorf airfield, Switzerland. 22-meters long, with the wingspan of a Boeing 747 and weighing as a medium car, the aircraft has 11,628 solar cells granting it a power of 40 hp capable to bring it to a speed of 70 km/h. With its unpressurized cockpit it has a ceiling of 8,500 meters. "Yesterday...
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