2c20.60.jpg

 

Code Number: 2C20.60

Demo Title: Magnus Effect - "V" Launcher and Ball

Condition: Good

Principle: Magnus Effect

Area of Study: Fluids

Equipment: 

Angled Paddle, Ping Pong Balls, Styrofoam balls,

Procedure:

Note:  Make sure to put your hand through the cord loop on the handle of the apparatus.  This is to prevent the apparatus from flying out into the audience in case inadvertently let go or the apparatus handle slips out of your hand.  

Put a ping pong ball in the groove and throw to show a curve ball.  

Styrofoam balls will also work very well and will travel farther than the lighter ping pong balls.

References:

  • Rod Cross, "Visualizing Fluid Flow Around a Baseball Using Water Instead of Air", TPT, Vol. 59, #5, May 2021, p. 310.
  • V. Timková, "How Magnus Bends the Flying Ball - Experimenting and Modeling", TPT, Vol. 55, #2, February 2017, p. 112-114. 
  • Brian W. Holmes, "My Teacher Is a Blowhard", TPT, Vol. 34, # 6, Sept. 1996, p. 362.
  • "Figuring Physics", TPT, Vol. 25, #6, Sept. 1987, p. 398.
  • George Barnes, "Demonstration Curved Trajectories of a Spinning Ball", TPT, Vol. 19, # 6, Sept. 1981, p. 403.
  • Dick Minnix, "The Spin on Baseballs or Golfballs", TPT, Vol. 18, # 4, Apr. 1980, p. 308.
  • Norman F. Smith, "Bernoulli and Newton in Fluid Mechanics", TPT, Vol.10, # 8, Nov. 1972, p. 451.
  • Sidney E. Lang, "Pascal's Law Apparatus", TPT Vol. 6, # 5, May 1968, p. 256.
  • Thomas L. Rokoske, "Modification of the Spinning-Ball Demonstration", TPT, Vol. 5 # 2, Feb. 1967, p. 84.
  • R. E. Worley, "Bernoulli Demonstration", TPT, Vol. 3, # 7, Oct. 1965, p. 320.
  • R. E. Worley, "Bernoulli Demonstration", TPT, April 1963.
  • Paul B. Umbanhowar, Daniel I. Goldman, "Low Density Fragile States in Cohesive Powders", AJP, Vol. 74, # 8, Aug. 2006, p. 720.
  • Robert G. Watts and Ricardo Ferrer,  "The Lateral Force on a Spinning Sphere:  Aerodynamics of a Curveball",  AJP, Vol. 55, # 1, Jan. 1987, p. 40.
  • Fj- 3:  Freier and Anderson,  A Demonstration Handbook for Physics.
  • F- 265:  "Curving Cups - Mailing Tube",  DICK and RAE Physics Demo Notebook.
  • "F- 260: Curving Styrofoam Balls",  DICK and RAE Physics Demo Notebook.
  • Borislaw Bilash II, David Maiullo, "Curve Baller", A Demo a Day: A Year of Physics Demonstrations, p. 196.
  • 4.4, "Fluids in Motion",  Cunningham and Herr,  Hands - On Physics Activities with Real Life Applications.
  • "310, The Curveball", Christopher P. Jargodzki and Franklin Potter,  Mad About Physics, p. 125, 260.

  • Janice VanCleave, "Curve Ball", Physics for Every Kid, p. 100-101.

     

2C20.60 - V-Launcher and Ball