Wine Butler, wine bottle

 

Code Number: 1J20.60

Demo Title: Wine Butler

Condition: Excellent

Principle: Center of Mass

Area of Study: Mechanics

Equipment: 

Wine Butler, wine bottle or plastic bottle filled with Squirt or 2 L Soda.

Procedure:

Place the Squirt in the Wine Butler as shown and adjust so that the system is in balance.  The pivot point should be directly below the center of mass.

References:

  • Alan J. DeWeerd, "Another Look at the Wine Butler", TPT, Vol. 45, # 7, Oct. 2007, p. 438.
  • Iain MacInnes, "The Rod and Bottle System: A Problem in Statics", TPT, Vol. 43, # 8, Nov. 2005, p. 538.
  • Martin C. Sagendorf, "Center-Of-Gravity", Physics Demonstration Apparatus, 2009, p. 25.