{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Electrical Experimenter 1919-04 Vol 6 No 12 #72: My Inventions by Nikola Tesla: Part 3 My Later Endeavors, The Discovery of the Rotating Magnetic Field","author_name":"Nikola Tesla, Lee de Forest","thumbnail_url":"https://www.ebooknetworking.net/books/B01/8H5/bigB018H5D9OI.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B018H5D9OI.html\">The Electrical Experimenter 1919-04 Vol 6 No 12 #72: My Inventions by Nikola Tesla: Part 3 My Later Endeavors, The Discovery of the Rotating Magnetic Field</a>","width":400,"height":300}