Sundial 185
- Dial City: River Falls
- Dial State/Province: Wisconsin
- Dial Country: USA
- Lat: 44° 51.180' N
- Dial Nr: 185
- Dial Type: Vertical Dial
- Dial Access: Public
- Lon: 92° 37.262' W
- Dial Owner: University of Wisconsin
- Dial Designer: John P.G. Shepherd
- Dial Maker: Gene Olson - Mettle Works, MN
- Dial Date: Finished May 1995; Dedicated Oct 1995
- Location:
- University of Wisconsin S. wall of Kleinpell Fine Arts Building Between S. 4th and S. 6th St, south of E. Cascade Ave.
- Description:
- The inspiration for this sundial, at one time the largest vertical dial in the world, came from Dr. Swensen visiting Heidelberg castle that had a large vertical dial on the wall of the castle. Construction of the Univ. of Wisconsin dial began in 1994 on the south wall of the Kleinpell Fine Arts Building. The result is a 30 x 56 foot vertical dial of anodized aluminum with analemmic hour markers, and day lines to mark winter and summer solstice, Candelmas (1/31), Martinmas (11/10), Beltane (5/8) and Lammas (8/4), vernal and autumnal equinoxes. The massive south-facing vertical dial takes up the entire wall of the three-story fine arts building. The hour markers are gold on the 'Spring' side and brown on the 'Fall' side with 7 day intervals marked on each. The hour mark analemmas are made from 1.25 inch wide by 0.75 inch thick aluminum bar. The daylines are smaller 1.25 x 0.5 inch aluminum. The gnomon was a project of experimentation, determining that the classic rod or rod and ball did not project a strong enough shadow. In the end, a double gnomon was created of two rods that act as a pointer, reading time at the apex of the two shadows.
- Inscription:
- Dedication plaque for the Dean Swensen Sundial, listing contributors, designer, builder, and implementer. Plaque describing dial operation
- Other References:
- You can see a time lapse of the shadows at
- http://www.uwrf.edu/AboutUs/Buildings/Sundial/TimeLapseSequence.cfm
- Roger Bailey updated lat/lon
Last Update:
2021-07-11 10:31