{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Propagation of Electric Waves Over the Earth: An Investigation of the Effect of the Earth's Magnetic Field on the Propogation of Electromagnetic Waves (Bell Telephone Laboratories Reprint B-123-1)","author_name":"H.W. & J.C. Schelleng Nichols","thumbnail_url":"https://www.ebooknetworking.net/books/B00/627/bigB00627K6ZY.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00627K6ZY.html\">Propagation of Electric Waves Over the Earth: An Investigation of the Effect of the Earth&#039;s Magnetic Field on the Propogation of Electromagnetic Waves (Bell Telephone Laboratories Reprint B-123-1)</a>","width":400,"height":300}