Code Number: 8A30.30
Demo Title: Retrograde Motion of Inner Planets Demo
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, These topics now available on YouTube videos.
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.
- Ronald Lane Reese, "Comment on 'A Retrograde Motion Demonstration Model' [Am. J. Phys. 54, 1021 (1986)]", AJP, Vol. 55, #5, May 1987, p. 393.
- Albert Ackroyd, Hendrik J. Gerritsen, "Retrograde Motion Demonstration Model", AJP, Vol. 54, # 11, Nov. 1986, p. 1021.
- Edward Kimmer, "Alternate Diagram of Retrograde Motion", AJP, Vol. 43, # 7, July 1975, p. 639.
- Hugo N. Swenson, "The Homocentric Spheres of Eudoxus", AJP, Vol. 31, #6, June 1963, p. 456.
- Janice VanCleave, "13, Back Up", Astronomy for Every Kid - 101 Easy Experiments That Really Work, p. 30.
- 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.