{"product_id":"einsteins-theory-of-unified-fields-marie-antoinette-tonnelat-9781138968516","title":"Einstein's Theory of Unified Fields","description":"\u003cp\u003eFirst published in1966, here is presented a comprehensive overview of one of the most elusive scientific speculations by the pre-eminent genius of the 20\u003csup\u003eth\u003c\/sup\u003e century. The theory is viewed by some scientists with deep suspicion, by others with optimism, but all agree that it represents an extreme challenge. As the author herself affirms, this work is not intended to be a complete treatise or 'didactic exposition' of the theory of unified fields, but rather a tool for further study, both by students and professional physicists. \u003c\/p\u003e \u003cp\u003eDealing with all the major areas of research which together comprise the development of a working model, the author ranges over conservation equations, variational principles, solutions of spherical symmetry, and treats a wide selection of Einstein's own equations. The final chapter indicates problems associated with the unified field theory, in particular the energy-momentum tensor and geodesics. \u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Marie Antoinette Tonnelat\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 113896851X\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781138968516\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Routledge\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 12\/09\/2015\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 200\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.64lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.21h x 6.14w x 0.43d","brand":"Marie Antoinette Tonnelat","offers":[{"title":"Paperback","offer_id":44138472505599,"sku":"9781138968516","price":59.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_54e46bd0-9c72-4b49-8ac6-c024f40d77b6.jpg?v=1687899844","url":"https:\/\/www.whiterainbookhouse.com\/products\/einsteins-theory-of-unified-fields-marie-antoinette-tonnelat-9781138968516","provider":"WR Book House","version":"1.0","type":"link"}