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Photographer: R. C.
Taken: July 18, 2010
Caption: Large Illuminated Light Bulb On Top of the Edison Memorial Tower
Additional Description: The large bulb atop the Tower was cast by the Corning Glass Works, which fifty-nine years ago,, in 1879 furnished from a sketch the first commercial electric light bulb. The replica bulb contains 153 separate pieces of amber tinted Pyrex glass, 2 in. thick, set upon a steel frame. The bulb is 5 ft. in diameter at the neck and 9 ft. 2 in. in diameter at the greatest width and weighs, without the steel frame on which it is placed, in excess of three tons. Inside this Pyrex glass bulb are four 1000 watt bulbs, four 200 watt bulbs, and four 100 watt bulbs. A duplicate of each is so arranged as automatically to cut in should its companion bulb fail.
Submitted: July 20, 2010, by Ronald Claiborne of College Station, Texas.
Database Locator Identification Number: p118398
File Size: 1.170 Megabytes

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