Video file
PIRA Classification: 2C20.70
Description: Magnus effect demo. The core from a roll of paper towels is wrapped with a string near the center. At the other end of the string is a loop with a meter stick inserted. When the meter stick is quickly jerked, the tube leaves the table and follows a loop-the-loop path.
Notes: An easier, but less impressive version of this demo is 2C20.73 - Magnus Effect Yo-Yo. To find the direction of the Magnus force you need to go to the reference frame of the cylinder.
Special Instructions: This is tough. PRACTICE.
Condition: Ok.
Setup time: 1 minute.
Safety Issues: None.