Conceptual diagram of bowling ball cores and technical specifications that help to determine ball motion. Diagram was made with Microsoft Powerpoint --&gt; PDF --&gt; PNG (saving to PDF minimizes pixellation of text).
<p>Technical specifications are discussed at, for example:
</p><p>"Ball Dynamics and Hook Potential". BowlingBall.com (Bowlversity educational section). 2005. Archived from the original on November 24, 2005.<sup id="cite_ref-BowlingBallBallDynamics2005_1-0" class="reference"><a href="#cite_note-BowlingBallBallDynamics2005-1">[1]</a></sup></p>
Direct links are in footnote below.
<a href="//commons.wikimedia.org/wiki/User:RCraig09" title="User:RCraig09">RCraig09</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>