Universal Current Events, No. 10
Giant Lens Now Safe in Mt. Wilson Observatory: Accompanied by armed guards, on account of threats of destruction, priceless lens is carried nine miles to mountain top, Mt. Wilson. Subtitles:... Read allGiant Lens Now Safe in Mt. Wilson Observatory: Accompanied by armed guards, on account of threats of destruction, priceless lens is carried nine miles to mountain top, Mt. Wilson. Subtitles: Dr. George W. Ritchie, who spent seven years grinding the huge lens. The encased lens wei... Read allGiant Lens Now Safe in Mt. Wilson Observatory: Accompanied by armed guards, on account of threats of destruction, priceless lens is carried nine miles to mountain top, Mt. Wilson. Subtitles: Dr. George W. Ritchie, who spent seven years grinding the huge lens. The encased lens weighs 4 ½ tons, is 100 inches in diameter, 13 inches thick and took 12 years to make. Old Gl... Read all