{ "item_title" : "Spinning Tops", "item_author" : [" John Perry "], "item_description" : "Spinning Tops: The Operatives' Lecture of the British Association Meeting at Leeds, September 6, 1890 is a book written by John Perry and published in 1890. The book is a comprehensive account of the lecture delivered by the author at the British Association Meeting held in Leeds on September 6, 1890. The lecture focuses on the science behind spinning tops and their various properties, including their stability and the factors that affect their motion. Perry discusses the mechanics of spinning tops, including the role of friction and the effects of different materials on their performance. The book also includes detailed illustrations and diagrams to aid the reader in understanding the concepts discussed. Overall, Spinning Tops is a fascinating exploration of the science behind this classic children's toy, written by a leading expert in the field.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.", "item_img_path" : "https://covers1.booksamillion.com/covers/bam/1/16/485/166/1164851667_b.jpg", "price_data" : { "retail_price" : "23.95", "online_price" : "23.95", "our_price" : "23.95", "club_price" : "23.95", "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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