1J40.50 - Roberval Balance
This device is a actual model of a platform balance. No matter what their position on the horizontal arms, equal weights will always balance on this device.
- Mike Tomac, "Torque Rack Demonstrator", TPT, Vol. 36, #7, Oct. 1998, p. 438.
- Paul Chagnon, "Animated Displays III: Mechanical Puzzles", TPT, Vol. 31, #1, Jan.1993, p. 32.
- Paul Chagnon, "The Roberval Balance", TPT, Vol. 30, #4, Apr. 1992, p. 238.
- H. Richard Crane, "Three Intuition Teasers", TPT, Vol. 29, #9, Dec. 1991, p. 593.
- E. Scott Barr, "The Roberval Balance", TPT, Vol. 22, #2, Feb. 1984, p. 121.
- "Little Stinkers: A Balance", TPT, Vol. 3, #3, Mar.1965, p. 136.
- "Little Stinkers: A Balance", TPT, Vol. 3, #1, Jan. 1965, p. 39.
- G. D. Freier and F. J. Anderson, "Mo-6", A Demonstration Handbook for Physics.
- Christopher P. Jargodzki and Franklin Potter, "219. Balance Paradox", Mad About Physics, p. 87, 223.
- "Rotational Kinematics and Dynamics", Physics Demonstration Experiments - In Two Volumes, p. 285.
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