Why can airplanes fly?

Provides answers to such flight-related questions as "How do airplane wings work?" "What is thrust?" and "How do helicopters fly?"

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Bibliographic Details
Main Author: Jacobs, Marian B.
Format: Books Print Book
Language:English
Published: New York : PowerKids Press, 1999.
Edition:1st ed.
Series:Library of why?
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Description
Summary:Provides answers to such flight-related questions as "How do airplane wings work?" "What is thrust?" and "How do helicopters fly?"
Item Description:Includes index.
Physical Description:24 p. : col. ill. ; 19 cm.
ISBN:0823952746