Sunquest sundial
The Sunquest Sundial is a sundial designed by Richard L. Schmoyer in the 1950s. Adjustable for latitude and longitude, the Sunquest's gnomon automatically corrects for the equation of time allowing it to tell clock time.
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Sunquest sundial, designed by Richard L. Schmoyer, at the Mount Cuba Observatory in Greenville, Delaware
The Sunquest sundial utilizes a cast aluminum gnomon, the shape of which is related to the analemma. When turned to face the sun, the gnomon casts a curved ribbon of sunlight onto the time-scale arc, correcting for mean time. The Sunquest sundial won Sky & Telescope magazine's "Sundial of the Year 2000" competition in 1966.[1]
The Sunquest Sundial has been featured in several other publications, including Sundials: The Art and Science of Gnomonics,[2] Scientific American[3] and Sundials: Their Theory and Construction.[4]
References
- Egger, Hermann (1966). "Results of Sundial Competition". Sky and Telescope. November: 256.
- Cousins, Frank (1970). Sundials: the Art and Science of Gnomonics. New York: Pica Press. pp. 189–195.
- Stong, C.L. (1959). "The Amateur Scientist". Scientific American. 200 (5): 185–198.
- Waugh, Albert E. (1973). Sundials: Their Theory and Construction. New York: Dover Publications. pp. 32–34.
External links
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