Helicopter Man: Igor Sikorsky and His Amazing Invention (Genius at Work! Great Inventor Biographies)
Book Details
Author(s)
Edwin Brit Wyckoff
Publisher
Enslow Elementary
ISBN / ASIN
0766034453
ISBN-13
9780766034457
Category
Juvenile Nonfiction
Marketplace
France 🇫🇷
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Description
Leonard da Vinci drew pictures of helicopters; Wilbur Wright said they would never work. But Igor Sikorsky proved him wrong, inventing the first working helicopter and building the company that still bears his name.
