{ "item_title" : "Light Designs", "item_author" : [" Cecil Simpson "], "item_description" : "The author has generated many intriguing designs that will thrill and excite you. This technique of a swinging light is a special form of a harmonograph (invented in 1844 by Professor Blackburn)but entirely different.. The swinging light technique has not been reported in the literature to my knowledge. Some patterns generated from a rotary harmonograph I built are also included. In addition to the light designs and harmonogrpph patterns are several inspiring and uplifting prose and poems written by the author that will surely draw you closer to God. ", "item_img_path" : "https://covers1.booksamillion.com/covers/bam/1/45/207/742/1452077428_b.jpg", "price_data" : { "retail_price" : "34.95", "online_price" : "34.95", "our_price" : "34.95", "club_price" : "34.95", "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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