Demonstrations

Comets and Asteroids

Code Number :	8A20.41
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 :	Models and Outgasing
Area of Study :	Astronomy
Equipment :	Comet model, plastic straws.
Procedure :	Set the comet up and insert the straws into one hemisphere. This is to show the outgasing that occurs on the sunward side.

References

Donald Metz and Arthur Stinner, "Deep Impact: The Physics of Asteroid/Earth Collisions," TPT, Vol. 40, # 8, p. 487, Nov. 2002.

Gordon McIntosh, "How Big Is a Planet?", TPT, Vol. 38, # 9, Dec. 2000, p. 534.

Edward Pascuzzi, "Comet of the Decade - Hale-Bopp (C/1995 O1)", TPT, Vol. 35, # 6, Sept. 1997, p. 348.

"Fortune Favors the Bold", TPT, Vol. 35, # 4, Apr. 1997, p. 247.

Michael C. Lo Presto, "A Computer Preview of Comet Hale-Bopp", TPT, Vol. 34, # 9, Dec. 1996, p. 558.

Jay M. Pasachoff, "Up-to-Date Astronomy Revisited", TPT, Vol. 26, # 7, Oct. 1988, p. 424.

Francis Podmore, Richard W. Fleet, "Make a Halley's Comet Orbit Model", TPT, Vol. 23, # 8, Nov. 1985, p. 490 - 491.

David Chandler, "The Apparent Path of Halley's Comet", TPT, Vol. 23, # 8, Nov. 1985, p. 485.

E. Scoot Barr, "More on Halley's Comet", TPT, Vol. 23, # 4, Apr. 1985, p. 225.

E. Scott Barr, "Erratum", TPT, Vol. 23, # 6, Sept. 1985, p. 347.

Robert Weinstock, "RE Romer, Halley, Twain, and Newton", TPT, Vol. 23, # 1, Jan. 1985, p. 6.

Alfred Romer, "Halley's Comet", TPT, Vol. 22, # 8, Nov. 1984, p. 488 - 493.

Thomas E. Margrave, Jr., "The 1986 Apparition of Halley's Comet", TPT, Vol. 15, # 2, Feb. 1977, p. 110.

Fletcher G. Watson, "Get Ready for Halley's Comet", TPT, Vol. 15, # 4, Apr. 1977, p. 260.

Julio Gratton, Carlos Alberto Perazzo, "Catastrophic Bolide Impacts on the Earth: Some Estimates", AJP, Vol. 74, # 9, Sept. 2006, p. 789.

Pirooz Mohazzabi, James A. Luecke, "Asteroid Impact and Eccentricity of Earth's Orbit", AJP, Vol. 71, # 7, July 2003, p. 687.

Clark R. Chapman, "The Nature of Asteroids", Scientific American, Jan. 1975, p. 24.

Isaac Asimov, "The Minor Objects," Fantasy and Science Fiction Magazine.

Jeff Hecht, "Global Catastrophes and Mass Extinctions," Analog Science Fiction/Science Fact Magazine, p. 78.

John G. Cramer, "Killer Asteroids and You," Analog Science Fiction & Fact Magazine, p. 208.

#33, Dirty Snowball, Janice VanCleave's 203 Icy, Freezing, Frosty, Cool and Wild Experiments.

#30, Minor Planets, Janice VanCleave's 204 Sticky, Gloppy, Wacky, and Wonderful Experiments.

#31, Space Rocks, Janice VanCleave's 204 Sticky, Gloppy, Wacky, and Wonderful Experiments.

Mail Questions and Comments to: Dale Stille