أرسل هذا في رسالة قصيرة: Understanding and evaluation of badminton shuttlecocks through flight dynamics and experimental approach

 _    _     ______    _____    __   __   _    _   
| \  / ||  /_   _//  |__  //   \ \\/ // | || | || 
|  \/  ||   -| ||-     / //     \ ` //  | || | || 
| .  . ||   _| ||_    / //__     | ||   | \\_/ || 
|_|\/|_||  /_____//  /_____||    |_||    \____//  
`-`  `-`   `-----`   `-----`     `-`'     `---`