{"product_id":"machines-peg-nazari-marson-9780941008990","title":"Machines: Grades 7-12","description":"Employ the TOPS advantage: build fun stuff with simple things. Devise levers, pulleys, reinvent the wheel, check gear ratios, calculate horsepower, win a tug-of-war. Use spring scales to weigh loads, measure effort, and calculate efficiency. Discover that machines save effort, but never reduce work!\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Peg Nazari Marson,Ronald Jay Marson\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 0941008991\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9780941008990\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Tops Learning Systems\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 04\/18\/2019\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 54\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.33lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 11.00h x 8.50w x 0.11d","brand":"Peg Nazari Marson","offers":[{"title":"Paperback","offer_id":48449062306047,"sku":"9780941008990","price":21.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_e0af72f5-c178-4ca1-bd86-5b46c7cc884f.jpg?v=1777261786","url":"https:\/\/www.whiterainbookhouse.com\/products\/machines-peg-nazari-marson-9780941008990","provider":"WR Book House","version":"1.0","type":"link"}