Demonstrations

Supernova Core Bounce

Code Number :	8B10.50
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 :	Magnetic Field Coupling
Area of Study :	Stellar Astronomy
Equipment :	Velocity Amplifier, Astro-Blaster^TM Apparatus, WD-40, Safety Glases.
Procedure :	Lift the desired number of circular plates to the height you want and let them drop. The small plate should jump to a height that is based on that combination. You should almost reach the ceiling in LR1 or LR2 if you use maximum settings. Lube the stem of the Astro-Blaster^TM with some WD-40. When dropping try and make sure that when it hits the ground the stem is pointed straight up. NOTE: Safety glasses should be worn to protect the eyes of the dropper.

Web Links

Wayne D. Peterson, "Velocity Amplifier Using Stacked Disks." http://www.rose-hulman.edu/~moloney/AppComp/1999Entries/entry11.htm

Margaret D. Campbell, "Superball Collisions."

References

Richard V. Mancuso and Kevin R. Long, "The Astro-Blaster," TPT, Vol. 33, # 6, p. 358, (Sept. 1995).

Alan W. Hirshfeld, "Bigger Bounces", TPT, Vol. 33, # 9, Dec. 1995, p. 548.

Walter Roy Mellen, "Aligner for Elastic Collisions of Dropped Balls," TPT, Vol. 33, # 1, p. 56-57, (Jan. 1995).

Jaty S. Huebner and Terry L. Smith, "Multi-Ball Collisions", TPT, Vol. 30, # 1, Jan. 1992, p. 46.

Neil M. Shea, "Nonideal Multiball Collision,", TPT, Vol. 30, # 4, Apr. 1992, p. 197.

Robert A. Edger, "Supernova Core Bounce: A Demonstration", TPT, Vol. 28, # 8, Nov. 1990, p. 558.

Kip S. Thorne, "The Death of a Star", TPT, Vol. 9, # 6, Sept. 1971, p. 326.

John A. Wheeler, "Our Universe: The Known and the Unknown", TPT, Vol. 7, # 1, Jan. 1969, p. 24.

Class of William G. Harter. "Velocity Amplification in Collision Experiments Involving Superballs." AJP, 39, p. 656, 1971.

Mellon, W. R. "Superball Rebound Projectiles" AJP, 36, p. 845, 1968.

Paul Gorenstein and Wallace Tucker, "Supernova Remnants", Scientific American, Vol. 224, # 7 to 12, 1971, p. 74.

Bertram Schwarzschild, "Most Luminous Supernova Ever Seen May be Manifesting a New Eruption Mechanism", Physics Today, p. 17, July 2007.

John J. Cowan, Friedrich-Karl Thielemann, "R-Process Nucleosynthesis in Supernovae," Physics Today, Oct. 2004, p. 47.

Margaret D. Campbell, "Superball Collisions."

John G. Cramer, "Supernova Duds and Toothpaste," Analog Science Fiction/Science Fact Magazine.

Isaac Asimov, "New Stars," Fantasy and Science Fiction Magazine.

Isaac Asimov, "Super Exploding Stars," Fantasy and Science Fiction Magazine.

Isaac Asimov, "Brightening Stars," Fantasy and Science Fiction Magazine.

Isaac Asimov, "The Dead-End Middle," Fantasy and Science Fiction Magazine.

Isaac Asimov, "Beyond the Night Sky," The Roving Mind, p. 177.

Brian Jones and Matt Fackelman, "Superball Supernova", Don't Forget the Duct Tape, p. 141 - 144.

Bill Franklin, "Abstract: Stacked Balls - How a Ball Can Bounce Higher Than Its Starting Point," 2005 Apparatus Competition, Salt Lake City, UT.

"Multiple Ball Drop," Physics From the Junk Drawer, 3rd Edition, The Science House, North Carolina State University, p. 26.

Mail Questions and Comments to: Dale Stille