曲 球
參考
[编辑]- Version 1: Candy Cummings was the inventor of the curveball
- Version 2: Fred Goldsmith: co-inventor of the curveball or pitcher who gave first recorded demonstration of the curveball?
- Aerodynamics of a Curveball in Navier-Stokes Flow (页面
存 档备份,存 于互联网档案 馆) - How to Throw a Curveball (页面
存 档备份,存 于互联网档案 馆) – wikiHow page outlining technique