Demonstrations

Cartesian Diver

Code Number :	2B40.30
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 :	Excellent
Principle :	Pressure vs. Air Volume
Area of Study :	Heat & Fluids
Equipment :	Cartesian diver.
Procedure :	Periodically the balloon in the large Cartesian diver will need to be changed. This is done by removing the top of the apparatus and pulling on the string that is attached to the balloon. Water will also need to be added to the unit before each use. Fill the eye dropper with enough water so that it just barely floats. Fill the plastic bottle so that there is no air in it when the lid is screwed on. Make sure the lid is on very tightly. Squeezing the bottle should make the diver sink.

Web Sites

Cartesian diver.

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

References

Hasan Fakhruddin, "Cartesian Diver and Riser," TPT, Vol. 41, # 1, p. 53, Jan 2003.

D. Rae Carpenter Jr., "Another Diver/Riser," TPT, Vol. 41, # 3, p. 133, March 2003.

J. Guemez, C. Fiolhais, and M. Fiolhais, "A Demonstration Apparatus for the Cartesian Diver," TPT, Vol. 41, # 8, Nov. 2003, p. 495.

Eric Muller, "Condiment Diver," TPT, Vol. 34, # 5, p. 296, May 1996.

Robert M. Graham, "An Extremely Sensitive Cartesian Diver," TPT, Vol. 32, # 3, March 1994, p. 182.

Terry Ragsdale, "Cartesian Diver," TPT, Vol. 27, # 4, April 1989, p. 306

Ronald M. Cosby and Douglas E. Petry, "Simple Bouyancy Demonstrations Using Saltwater," TPT, Vol. 27, # 7, p. 550, October 1989.

R. B. Knollenberg, III "An Automated Cartesian Diver Apparatus." TPT, Vol. 27, # 1, p. 51, January 1989.

Ann Brandon, "A Beautiful Cartesian Diver", TPT, Vol. 20, # 7, Oct. 1982, p. 482 - 483.

Edward V. Lee, "Cartesian Diver with Pressure Head," TPT, Vol. 19, # 6, p. 416, Sept. 1981.

Haym Kruglak, "The Rising Cartesian Diver," TPT, Vol. 13, # 2, Feb. 1975, p. 68.

Robert N. Jones, "The Cartesian Diver," TPT, Vol. 11, 1973, p. 345

J. Guemez, C. Fiolhais, and M. Fiolhais, "The Cartesian Diver and the Fold Catastrophe," AJP, Vol. 70, July 2002, p. 710

Fg- 6: Freier and Anderson, A Demonstration Handbook for Physics.

F-120: "Pepsi-Diver and Windex-Climber," DICK and RAE Physics Demo Notebook.

G. Planinsic, M. Kos and R. Jerman, "Two-Liquid Cartesian Diver", Physics Education, Vol. 39, (1), Jan. 2004, p. 58.

Janice VanCleave, "Sinker," 201 Awesome, Magical, Bizarre, & Incredible Experiments, p. 49.

Janice VanCleave, "94, Weight Loss," Earth Science for Every Kid: 101 Easy Experiments That Really Work.

Robert Ehrlich, "Cartesian Diver," Turning the World Inside Out, p. 96 - 97.

Haym Kruglak, "Cartesian Divers Designed by Pupils," School Science and Mathematics p. 141.

Ron Hipschman, "Descartes' Diver," Exploratorium Cookbook III, p. 135-1 - 135-4.

Roger Key, "Cartesian Diver," PIRA New, Vol. 9, No. 2.

Steve Spangler, Soda Bottle Science, Cartesian Divers.

Brian Jones and Matt Fackelman, "Cartesian Diver," Don't Forget the Duct Tape! - The How and Why of the Experiments of the Little Shop of Physics - A Work in Progress, p. 17.

Mail Questions and Comments to: Dale Stille