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'''Helicopter'''
'''Helicopter'''
''Helicopter flight was the first flight envisioned by man. In fact, the ancient Chinese were playing with a hand-spun toy that rose upward when revolved rapidly and as early as the mid 1500's, the great Italian inventor [[Leonardo da Vinci]] had used his fertile mind to make drawings of a machine that we now know as the helicopter.''<ref> [http://www.helis.com/ Helicopter History Site]
''Helicopter flight was the first flight envisioned by man. In fact, the ancient [[Chinese]] were playing with a hand-spun toy that rose upward when revolved rapidly and as early as the mid 1500's, the great [[Italian]] inventor [[Leonardo da Vinci]] had used his fertile mind to make drawings of a machine that we now know as the helicopter.''<ref> [http://www.helis.com/ Helicopter History Site]
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