2C20.80 - Magnus Effect - Flettner Rotator

Code Number:
Demo Title:
Magnus Effect - Flettner Rotator
Bernoulli's Principle
Area of Study:
Heat & Fluids
Drill with cylinder spinner adapter, Pasco fan cart, and Flettner Rotator on Pasco cart.

Spin the cylinder up to 2500 rpm using the drill and adapter. Blowing air across the cylinder at 90 degrees will cause the cart with the cylinder to move left or right.

  • David Kagan, "A Very Inexpensive Magnus Force Demonstrator", TPT, Vol. 48, # 7, Oct. 2010, p. 488.
  • Thomas B. Greenslade, Jr., "A Forgotten Magnus-Effect Demonstration", TPT, Vol. 9, #1, Jan. 1971, p. 43. Reprinted: TPT, Vol. 44, #8, Nov. 2006, p. 552.
  • A. B. Murphy, "Comment on 'A Flettner Rotor Ship Demonstration'", AJP, Vol. 57, #2, Feb. 1989, p. 181.
  • George Barnes, "A Flettner Rotor Ship Demonstration", AJP, Vol. 55, #11, Nov. 1987, p. 1040.
  • Bill Franklin, "The Forces on a Rotating Object in Flowing Air", Teaching About Impulse and Momentum, p. 4.20.
  • Bill Franklin, "Rotating Sail Magnus Effect Demonstrator", Teaching About Impulse and Momentum, p. 4.19.
  • Bill Franklin, "Curve Balls", Teaching About Impulse and Momentum, p. 2.14.
  • Jearl Walker, "2.145, Flettner's Ship", The Flying Circus of Physics Ed. 2, p. 143.
  • Christopher P. Jargodzki and Franklin Potter, "115, The Flettner Rotor Ship", Mad About Physics. p. 44, 187.
  • Neil A. Downie, "22, Rotarudder", Vacuum Bazookas, Electric Rainbow Jelly and 27 Other Saturday Science Projects, p. 182.
  • Lizzie Schiffman, "Second Wind", Popular Science, Feb. 2011, p. 96.
  • Bill Franklin, "Advance Laboratory or Lecture Demonstration AND Low-Cost Rotating Sail Magnus Effect Demonstrator".
  • This Month in Physics History, "March 29, 1959: Lyman Briggs Publishes Research Results on Spin of a Baseball", APS News, Vol. 28, #3, Mar. 2019, p. 2, 3.

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