{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Six Not-So-Easy Pieces: Einstein's Relativity, Symmetry, and Space-Time","author_name":"Richard P. Feynman","thumbnail_url":"https://www.ebooknetworking.net/books/B00/09I/bigB0009IINXE.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0009IINXE.html\">Six Not-So-Easy Pieces: Einstein&#039;s Relativity, Symmetry, and Space-Time</a>","width":400,"height":300}