Demonstrations

Telescopes - Refractors and Reflectors

Code Number :	6A70.23
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 :	Lens Systems and Magnification
Area of Study :	Optics
Equipment :	Refractor Telescopes, 14 inch reflector telescope with Plexiglas body, 6 inch Plexiglas demo reflecting telescope.
Procedure :	The refractors and 14 inch reflector telescopes are mainly for show and tell as their focal lengths do not allow you to see images of any object inside the classroom.

Web Sites

Telescope, simple. http://bizarrelabs.com
© 1997-2002 Brian Carusella, All rights reserved.

References

A.J. Cox and Alan J. DeWeerd, "The Image Between the Lenses: Activities with a Telescope and a Microscope," TPT, Vol. 41, # 3, p. 176, (March 2003).

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

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

David Chandler, "Understanding Parabolic Reflectors Through Paper Folding," TPT, Vol. 39, # 1, p. 24, (Jan. 2001).

Thomas B. Greenslade, Jr., "The Rosse Telescope," TPT, Vol. 36, # 8, p. 493-495, (Nov. 1998).

Thomas D. Miner, "In Your Eye", TPT, Vol. 27, # 2, Feb., 1989, p. 70.

Eugene Rudd, "The Rainbow and the Achromatic Telescope: Two Case Studies", TPT, Vol. 26, # 2, Feb., 1988, p. 82.

William Blunk, Arnold Burkert, "A Telescope Workshop", TPT, Vol. 25, # 2, Feb. 1987, p. 111.

Kenneth N. Taylor, "Measuring Focal Lengths and Principal Planes of Complex Lens", TPT, Vol. 25, # 8, Nov. 1987, p. 484.

Thomas B. Greenslade, Jr., "Nineteenth Century Textbook Illustrations - XLV", TPT, Vol. 24, # 4, Apr. 1986, p.228.

Carl C. Sartain, "More on Galileo's Telescopes", TPT, Vol. 20, # 6, Sept. 1982, p. 352.

Michael K. Gainer, "An Experiment in the History of Astronomy", TPT, Vol. 19, # 1, Jan. 1981, p. 22.

Daniel G. Goehring, "Galileo's First Telescopes", TPT, Vol. 19, # 8, Nov. 1981, p. 516.

Thomas E. Ruden, "Galileo's First Telescopes?", TPT, Vol. 20, # 2, Feb. 1981, p. 140.

J. Robert Waaland, "Fraunhofer and the Great Dorpat Refractor", AJP, Vol. 35, # 4, Apr. 1967, p. 344.

C.L. Stong, "Concerning the Problem of Making Sharper Photographs of the Planets," The Amateur Scientist, (June, 1965).

Toni Feder, "Limiting Light Pollution is Ongoing Challenge", Physics Today, June 2005, p. 24 - 26.

Béla Szomi Kralj, "DIY Enables Affordable Lessons in Light", Physics Education, July 2005, p. 320.

Dick Suiter, "Test Drive Your Telescope," Supplement to Astronomy, September 1990.

James P. Wells, "Annals of a University of Iowa Department," Natural Philosophy to Physics and Astronomy, (June 1980).

Janice VanCleave, "Fill 'Er Up," Help, My Science Project is Due Tomorrow!, p. 20.

Michael D. Lemonick, "From Here to Eternity," Discover, p. 50-55, May 1999.

Raymond Bruman, "Telescope," Exploratorium Cookbook I, p. 13.1 - 13.2.

"Using a Telescope," International Masters Publishers.

Eric Adams, "Light and Magic," 2002 Science Supplement, p. 64. ISBN 0-7172-1571-7

Toni Feder, "Mercury Telescope Spins Up," Physics Today, Nov. 2003, pg. 24.

9.1, "Telescopes", Project & Demonstrations in Astronomy by D.Tattersfield, p.224.

"Magnifying Power and Resolving Power of a Telescope", Selective Experiments in Physics, CENCO, 1962.

"Simple Telescopes - Magnifying Power", Selective Experiments in Physics, CENCO, 1962.

Mail Questions and Comments to: Dale Stille