{"product_id":"the-most-important-clock-in-ronald-r-hoppes-9781606189924","title":"The Most Important Clock in America: The David Rittenhouse Astronomical Musical Clock at Drexel University Transactions, American Philosophical Societ","description":"During the years of 1767-1770 David Rittenhouse designed and produced two orreries, one for Princeton Univ. and one for the Univ. of PA. During the last two years of this interval he also produced two 30-day musical tall-cased clocks. The first clock, built in 1769, is currently owned by the PA Hospital. The following year (1770) Rittenhouse made a second tall-case musical clock, which was more elaborate than the first. This clock, currently owned by Drexel Univ., is a very good example of Rittenhouse's work as it has experienced only minor changes over the years. This was the masterpiece of his clock-making career and is a national historical treasure. Here is a detailed analysis of the various gears in the clock. 100+ drawings and full-color photos.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Ronald R. Hoppes\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1606189921\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781606189924\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e American Philosophical Society Press\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 01\/01\/2009\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 99\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Hardcover\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.65lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.90h x 6.60w x 0.30d\u003cbr\u003e\u003cbr\u003e\u003cb\u003eReview Citation(s): \u003c\/b\u003e\u003cbr\u003e\u003ci\u003eScitech Book News\u003c\/i\u003e 09\/01\/2009 pg. 164","brand":"Ronald R. Hoppes","offers":[{"title":"Hardcover","offer_id":47474144018687,"sku":"9781606189924","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_2fedc979-92ac-4b35-9efc-64277b6b3062.jpg?v=1762315103","url":"https:\/\/www.whiterainbookhouse.com\/products\/the-most-important-clock-in-ronald-r-hoppes-9781606189924","provider":"WR Book House","version":"1.0","type":"link"}