-- TOKYO -- A Japanese man who developed the world's smallest helicopter plans a demonstration flight in the birthplace of Leonardo da Vinci later this month.More here.
Seventy-five-year-old Gennai Yanagisawa says he will fly his one-man helicopter in the city of Vinci, near Florence, Italy, on May 25. Yanagisawa describes the demonstration as a tribute to the Renaissance-era visionary's original idea of an "aerial screw."
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