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Machine with wings that go up and down like a bird's
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They did this by making a fire under a silk bag so it filled with hot air
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One of them had a box under the wings,like a boat with wheels
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George Cayley and Otto Lilienthal built their own glider. Later in 1902 they started designing an engine on for it
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Orville Wright flew their plane. The flight lasted 12 second and the plane traveled about 36.5 meters. Then, in 1905, Wilbur flew for 38 km.
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