Emilio Segrè Visual Archives

More than 30,000 photos of scientists and their work

Hall Donald F2

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Hall Donald F2

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$20.00
Image title: 
Kitt Peak Polishing Tool
Credit line: 
Kitt Peak National Observatory, courtesy AIP Emilio Segrè Visual Archives, Physics Today Collection
Description: 

Kitt Peak Master Optician John Richardson (right), with help from Engineer Larry Barr (left) and Project Scientist Donald Hall, controls the placement of the optical polishing tool, above, onto a possible future 15-meter telescope mirror element which is surrounded by the novel mechanical glass bending fixtures that enable paraboloids to be polished as simple spheres.

Photo date: 
Circa September 1981
Original format: 
1 photographic print (black and white; 10 x 8 inches)
Person(s): 
Hall, Donald Norman Blake