历史上最伟大发明的真相
The Airplane
Speaking of building bikes, that’s exactly what Orville and Wilbur Wright did before they became the first team to fly a heavier-than-air machine. But, as we’ve learned, every great inventor stands on the shoulders of giants. When the Wright brothers asked the Smithsonian20) for all available information on the history of flight in 1899, they opened a history that had beg
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