# KineticLab

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [Abdullah Al Kafi](https://cerebralvalley.ai/u/phpfreakbd)
- **GitHub:** https://github.com/localhost8083/kineticlab-neuro-symbolic-metrology
- **Demo video:** https://www.youtube.com/watch?v=j1-tvtS7HCk
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1137

KineticLab turns an ordinary phone video of a swinging pendulum into auditable physics
measurements. Meta's SAM 3.1 segments the bob and a reference card frame by frame (bob 591/591
valid, card 392/392 valid — pinned offline replay of a live capture); the deterministic,
stdlib-only Python pipeline converts those masks into calibrated geometry (human-typed 85x54 mm
card, reference type 'unknown' because a cut card is no standard, scale 0.40633 mm/px over 272
clean frames) and a pendulum fit reporting omega approx 5.38 1/s, period approx 1.168 s, and the
identifiable g/L_eff = 28.93746036102984 1/s^2 with a seeded block-bootstrap interval
[28.899, 28.983] 1/s^2 (n_boot 800, block 36 frames). The 591-frame, 19.73 s, 1024x576 clip keeps
real source PTS timing; every export is hash-pinned; unknowns render as null — gravity stays null
because no independent length was provided. Full suite: 877 tests, OK (skipped=15, platform-gated pins) (2026-11-03). Auditable,
reproducible, honest: gravity is never claimed without an independently measured length.

## More from Meta Global AI Developer Hackathon

- [Iqbal's Basilisk Lab](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1134)
- [QuoteDesk](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1135)
- [Nanang](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1136)
- [Esmada Zimba](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1138)
- [JolSetu](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1139)
- [Antiscamplus](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1140)

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Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1137. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt