Gyro ball

• Gyro-ball (Rifle-Spin Ball) and its variation
• Development and Analysis of Gyroball
• Using a high-speed video camera, we have recorded the trajectory and the rotation of a hard baseball and a sphere thrown by real pitchers for the analysis of drag and lift coefficients.
  
  

  movie 1		wmv file (8,996KB) mpg file (3,525KB)

  
  
  

  movie 2		wmv file (11,667KB) mpg file (5,516KB)

• Video that shows the wake of fork ball.
  
  

  wmv file (24,246KB) mpg file (7,071KB)

• Comparison of wakes made by two types of gyro ball (Two-seam rotation and four-seam rotation).
  
  

  wmv file (23,439KB) mpg file (13,501KB)