{ "item_title" : "Where Does Sound Come From? Data & Graphs for Science Lab", "item_author" : [" M. Schottenbauer "], "item_description" : "In this book, readers gain access to real scientific data pertaining to the science of sound production, promoting graph-reading, comparison, contrast, and calculation skills. Graphs show data from the following scientific instruments: Gas Pressure Sensor, Anemometer (Wind Speed), Dual-Range Force Sensor, and Sound Pressure Meter (Microphone). This book contains data collected from two guitars, a 1/2 size classical guitar with nylon strings, and a 30 folk guitar with steel strings. Bonus Material: Reprints of key reference materials from Volume 1 are included for convenience, including information on different types of microphone setups (mono, stereo, traditional stereo, &, x-y configuration), pictures of the harmonic overtone series, and graphs of theoretically calculated harmonic waves.", "item_img_path" : "https://covers1.booksamillion.com/covers/bam/1/49/229/252/1492292524_b.jpg", "price_data" : { "retail_price" : "38.00", "online_price" : "38.00", "our_price" : "38.00", "club_price" : "38.00", "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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