{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"“A Vacuum Chamber for Aluminizing the 82-Inch Mirror of the McDonald Observatory. ”","author_name":"Robley C. WILLIAMS","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B000TOVTAC.html\">“A Vacuum Chamber for Aluminizing the 82-Inch Mirror of the McDonald Observatory. ”</a>","width":400,"height":300}