60 years [electronic resource] : 200-inch disk / The Corning Museum of Glass.

Title: 
60 years [electronic resource] : 200-inch disk / The Corning Museum of Glass.
Publisher: 
Corning, N.Y. : Corning Museum of Glass, 2011.
Description: 
1 streaming video file (3 min.) : digital, sd., col.
Other Authors: 
Cassetti, Robert K.
Corning Museum of Glass.
Bib ID: 
128980
Variant Title: 
200-Inch disk
Notes: 
Not commercially distributed.
Mode of access: Internet.
In 1929, Corning Glass Works accepted a commission to make a 200-inch Pyrex disk for use in a reflecting telescope on Mount Palomar in California. After several trial castings of smaller disks, Corning poured a 200-inch disk in 1934. When part of the mold broke loose, the disk was ruined, but it was annealed (cooled slowly) as an experiment to gather information necessary for a second, successful casting later that year. This is the initial disk, which has been displayed at The Corning Museum of Glass since it opened.
Produced in conjunction with the Museum's 60th anniversary, 2011.
Rob Cassetti, senior director, creative services and marketing at The Corning Museum of Glass.
Title from title frame.
Event Notes: 
Produced in conjunction with the Museum's 60th anniversary, 2011.