Demonstrations

Circular Sundial

Code Number :	8A10.18?
Disclaimer:	Reprinted by permission of Dick Berg, University of Maryland, for use on this website. The demonstrations contained and referenced herein are listed for the purposes of cataloging and describing physics demonstrations which should be conducted only under the direction of a trained instructional support professional or physicist. These demonstrations are not presented for the purpose of being conducted by persons unconnected to this Facility and/or persons not consulting with or being supervised by the recognized instructional support professional or physicist and his/her staff. The University is responsible only for those demonstrations carried out using its own equipment using established safety and scheduling policies, and bears no responsibility for those choosing to use this source material for their own purposes. All demonstrations described and contained herein are public domain, and can also be found in reference materials in libraries, bookstores, and electronic sources. Further information regarding legal liability in use of demonstrations and labs will be found on the web site Injuries in School/College Laboratories in USA. The University of Iowa Disclaimers: University of Iowa Disclaimer All Rights Reserved..
Condition :	Good
Principle :	Earth Inclination and Position on Earth
Area of Study :	Astronomy
Equipment :	Sundial.
Procedure :	Sundial set for a latitude of 41 degrees 40 minutes North and a longitude of 91 degrees 31 minutes West. Set the sundial up so that it is facing in a straight North, South and East, West alignment.

References

Harry Manos, "Galileo's Lens," TPT, Vol. 41, # 5, May 2003, p. 268

David P. Stern, "Sundials and Compasses," TPT, Vol. 41, # 7, Oct. 2003, p. 380.

Michelle B. Larson, "Constructing a Portable Sundial," TPT, Vol. 37, # 2, p. 113, (Feb. 1999).

Richard Hansgen, "Watching the Earth Spin: A Determination of Midday," TPT, Vol. 33, # 2, p. 116, Feb. 1995.

Malcolm M. Thomson, "Sundials", TPT, Vol. 10, # 3, March 1972, p. 117.

Herman Erlichson, "The Horizontal Sundial", AJP, Vol. 42, # 5, May 1974, p. 372.

Ron Hipschman, "Sun Dial," Exploratorium Cookbook II, pp. 134.1 - 134.5.

Martin L. Keen, Let's Experiment: Over 150 Safe, Easy Experiments for Junior Scientists to Perform at Home, pp. 36-40.

H.S. Stuttman, "Sun Dial," The New Illustrated Science and Invention, pp. 2665-2666.

Shar Levine & Leslie Johnstone, "Here Comes the Sun," Everyday Science, pp. 41-43.

#5, Lower, Janice VanCleave's 203 Icy, Freezing, Frosty, Cool, and Wild Experiments.

5.13, "The Sundial", Project & Demonstrations in Astronomy by D.Tattersfield, p.93.

Mail Questions and Comments to: Dale Stille