Spin Lab
Details
- External ID
- 48554044
- Source
- HN
- Company
- —
- Product
- Spin Lab
- Website domain
- srijanshukla.com
- Launched
- June 16, 2026
- Cohort
- —
- Upvotes
- 44
- Upvotes percentile
- 0.8292349726775956
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Description
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
Enrichment
- Theme
- game utilities and decision randomizers
- Vertical
- —
- Function
- —
- Audience
- —
- AI stance
- —
- Project type
- —
- Normalized one-liner
- —
- Manually corrected
- False
Could you build this?
Yes Spin Lab is an educational, browser-based 3D physics explainer built with Three.js and standard aerodynamic equations (Magnus effect). Vibe coding handles interactive WebGL simulations and step-by-step explanatory UI exceptionally well.
Discussion
20 comments analyzed.
Competitors mentioned: Nittaku balls, DHS balls
Concerns raised: UI doesn't work well on mobile devices, Angle selection limited to 5° increments instead of fine-grained control, AI-generated text feels inauthentic, Bounce calculation appears incorrect for backspin push shots, Lacks classification table for spin results
Feature requests: Show multiple ball types simultaneously for bounce comparison, Finer angle adjustment below 5° increments, Include air density and ball material variations in simulation, Fix backspin push shot physics calculations
Competitors
Other products that read as similar to this one — 44 launches clear the similarity bar, closest 8 shown.
Attention rank: #7 of 45 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 222 days after the earliest competitor.
- SpinStreak · ph · 2026-09-07 · 1 upvotes · similarity 0.52
- Smashpoint · ph · 2026-09-25 · 1 upvotes · similarity 0.41
- SpinOfLuck · ph · 2026-09-11 · 2 upvotes · similarity 0.40
- Spin The Wheel 3D · ph · 2026-09-28 · 2 upvotes · similarity 0.39
- Typing Tennis · hn · 2026-01-20 · 5 upvotes · similarity 0.39
- Baseball Physics Lab · ph · 2026-09-18 · 1 upvotes · similarity 0.38
- Court Rally · ph · 2026-09-11 · 1 upvotes · similarity 0.38
- Chess Visualizer · ph · 2026-09-13 · 2 upvotes · similarity 0.37
Other launches for this product
- No other launches for this product.