PHILIPPE PSAILA / SCIENCE PHOTO LIBRARY PHILIPPE PSAILA / SCIENCE PHOTO LIBRARY
Ornithopter flapping wing aircraft. French inventor Albert Kempf holding miniature flapping wing aircraft, or ornithopters. The ornithopter flies by flapping its pair of wings under the power of a small electric motor. They are designed to provide silent, low-speed flight and could be controlled remotely to navigate through confined spaces, such as the interior of buildings. Such aircraft could be used for surveillance purposes.
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