A browser-based interactive explainer for table-tennis spin, visualizing concepts like topspin/backspin, spin rate, ball trajectory, and bounce behavior.
Raw Developer Origin & Technical Request
Hacker News
Jun 18, 2026
Hey HN, I built Spin Lab: a browser-based interactive explainer for table-tennis spin. It visualizes topspin/backspin, spin rate, ball trajectory, bounce behavior, and why the opponent’s return reacts the way it does. I built it because spin is central to table tennis, but most explanations are either too hand-wavy or too static.Thanks Fable, we miss you
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