Game Ball with Enhanced in Flight Movement
作者： Jason Lenig
DOI:
关键词: Mathematics 、 Ball (mathematics) 、 Geometry
摘要: A game ball with a generally spherical inner and cover substantially covering the ball. The has first second halves divided by an imaginary equatorial plane. There are circumferentially spaced openings in half of aligned curves away from when thrown thus may be used for learning how to throw hit breaking pitches.
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