Demonstrations

Retrograde Motion of Inner Planets Demo

Code Number :	8A10.55
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 :	Retrograde Motion of Inner Planets
Area of Study :	Solar System
Equipment :	Retrograde Demo, VHS Tape - Retrograde Motion - Geocentric Model, VHS Tape - Retrograde Motion - Heliocentric Model.
Procedure :	No preparation needed beyond regular maintenance to insure tightness of set screws, etc. Works best to hang this on the Blackboard Optics board.

References

Herman Erlichson, "The Retrograde Motion of Mars," TPT, Vol. 37, # 6, p. 342, (Sept. 1999).

Matthew J. Moelter and Bernard A. Bates, "Hands-on Epicycles and Retrograde Motion," TPT, Vol. 35, # 9, p. 554-555, (Dec. 1997).

Herbert T. Wood, "Retrograde Motion - An Out-of-Doors Lab", TPT, Vol. 30, # 5, May 1992, p. 302.

A.S. Biffi, "Understanding the Retrograde Motion of a Planet", TPT, Vol. 21, # 4, Apr. 1983, p. 252.

Albert Ackroyd and Hendrik J. Gerritsen, "A Retrograde Motion Demonstration Model," Am. J. Phys., Vol. 54, No. 11, 1022, (November 1986).

Edward Kimmer, "Alternate Diagram of Retrograde Motion", AJP, Vol. 43, # 7, July 1975, p. 639.

Janice VanCleave, "Back Up," Astronomy for Every Kid - 101 Easy Experiments That Really Work, pp. 30-31.

Isaac Asimov, "Smashing the Sky," Fantasy & Science Fiction Magazine, pp. 132.

#37, Back and Forth, Janice VanCleave's 203 Icy, Freezing, Frosty, Cool, and Wild Experiments.

4.14, "Direct and Retrograde Motion of the Planets", Project & Demonstrations in Astronomy by D.Tattersfield, p.70.

Mail Questions and Comments to: Dale Stille