How People Learned to Fly (Let's-Read-and-Find-Out Science 2)
"People have taken dangerous risks trying to fly. Some inventors built wings for their arms and flapped them like birds. Others tried to fly with balloons or tried to glide with the wind. This book describes the creative, fascinating, and wacky experiments that people tried before the airplane...
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| Format: | Book |
| Language: | Undetermined |
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HarperCollins
2007
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