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Try our wings ( Gliders ) |
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| One hundred years after the first flight of the balloon, a man named Otto Lilienthal came up with an idea for a glider. He ran down a hill going fast. At a certain speed the wings lifted him off the ground and he flew in the air. |
Please answer the following question to continue:
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| One thousand years after the first balloon, the glider was invented. |
True False |