{ "item_title" : "Changes Within Physical Systems And/Or Conservation of Energy and Momentum", "item_author" : [" Ray Villard "], "item_description" : "As research continues into the changes in physical systems and the conservation of energy and momentum, new applications are being tested and practical use is being found for these applications every day. Scientists are using these breakthroughs to test new methods of space exploration, how to deflect Earth-threatening asteroids, and even power medical devices as small as a human cell. With articles written and introduced by experts in this field, readers will find this fascinating book both authoritative and insightful.", "item_img_path" : "https://covers2.booksamillion.com/covers/bam/1/40/420/404/1404204040_b.jpg", "price_data" : { "retail_price" : "41.13", "online_price" : "41.13", "our_price" : "41.13", "club_price" : "41.13", "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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