{ "item_title" : "The Science of Marbles", "item_author" : [" M. Schottenbauer "], "item_description" : "This book contains graphs showing the motion of marbles as they travel on a variety of inclined surfaces, including flat wood and curved metal inclines. Paths are complex, with an initial incline followed by a flat surface, drop, ramp, or wall. Comparison graphs include free fall and bouncing on carpet. The experiments focus on four marbles, plus a rubber ball for comparison. These data can be used for lesson plans by teachers and parents.", "item_img_path" : "https://covers2.booksamillion.com/covers/bam/1/50/863/723/1508637237_b.jpg", "price_data" : { "retail_price" : "16.00", "online_price" : "16.00", "our_price" : "16.00", "club_price" : "16.00", "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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