{ "item_title" : "The Internal Work of the Wind", "item_author" : [" S. P. 1834-1906 Langley "], "item_description" : "This classic work by the pioneering aeronautical scientist S. P. Langley provides a detailed analysis of the physics of flight. Langley covers topics such as air pressure, turbulence, and the dynamics of airfoils, and offers insights into the principles that govern the behavior of aircraft. The book is illustrated with diagrams and charts, and is a must-read for students and professionals in the aviation industry.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.", "item_img_path" : "https://covers2.booksamillion.com/covers/bam/1/02/146/850/1021468509_b.jpg", "price_data" : { "retail_price" : "13.95", "online_price" : "13.95", "our_price" : "13.95", "club_price" : "13.95", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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