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Flying Machines: Construction And Operation
Flying Machines Construction And Operation
Author: W. J. Jackman
Take a circular-shaped bit of cardboard, like the lid of a hat box, and remove the bent-over portion so as to have a perfectly flat surface with a clean, sharp edge. Holding the cardboard at arm's length, withdraw your hand, leaving the cardboard without support. What is the result? The cardboard, being heavier than air, and having nothing to su...  more »
ISBN-13: 9781419120145
ISBN-10: 141912014X
Publication Date: 6/30/2004
Pages: 144
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Publisher: Kessinger Publishing
Book Type: Paperback
Other Versions: Hardcover
Members Wishing: 0
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