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Leonardo da Vinci: A Genius Before His Time. He was a scientist before there was science, an inventor whose ideas outstripped the technology of his time, and a famous artist who produced the most valuable and recognized painting in the world.
Leonardo designed a multitude of mechanical devices, including parachutes, and studied the flight of birds as well as their structure. About 1485 he drew detailed plans for a human-powered ornithopter (a wing-flapping device intended to fly).