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Cumpara unlocking the sky: harper perennial de calitate.
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Unlocking the Sky tells the extraordinary tale of the Race to design, refine, and manufacture a manned flying machine, a Race that took place in the air, on the ground, and in the courtrooms of America.
While the Wright brothers threw a veil of secrecy over their flying machine, Glenn Hammond Curtiss -- perhaps the greatest aviator and aeronautical inventor of all time -- freely exchanged information with engineers in America and abroad, resulting in his famous airplane, the J.
Unlocking the Sky tells the extraordinary tale of the Race to design, refine, and manufacture a manned flying machine, a Race that took place in the air, on the ground, and in the courtrooms of America
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