# Who Spun It

> A playful home-science page for the small paper spinner balanced on a needle that is often sold or shown as a telekinesis or mind-power wheel. Log up to 6 rounds - a clear cup over it or not, hands away, near or close, breath normal or held, room air still or moving - and how much it turned. The page pairs rounds that differ in exactly 1 condition, draws the bench and a round strip, and gives a free verdict by a fixed rule plus the next single change to try. One metered run writes a note for every round, explains the push behind the verdict and says why the next round is worth trying.

URL: https://who-spun-it.skillsafe.ai/
API: https://who-spun-it.skillsafe.ai/api.html

## The verdict rule (free, in the browser)
A pair is 2 rounds that differ in exactly 1 condition. It is decisive when the spin differs, 1 round reached a slow turn or more, and the round with more push (cup off, hands closer, normal breathing, moving air) turned more.
Checked in order, first match wins:
1. No spin yet - no round got past a wobble.
2. The room did it - a round with the cup off and hands away still reached a slow turn or more.
3. Needs a fair pair - no decisive pair.
4. Otherwise the decisive pair that changed hands, then breath, then air, then the cup decides: Warm hands, Your breath, The room did it or Moving air.
The next round always changes 1 condition from 1 logged round, never repeats a logged round's conditions unless a plain repeat is the only useful step.

## The metered run (task "spin-check")
Input strings: task, setup, idea, rounds (the page's lines), facts (verdict, deciding pair, spin with the cup off and hands away, repeats, other pairs, suspects, next change). Reply: one JSON object with verdict (copied from the page), headline, reads (1 per round), physics, next_why and closing. The page re-checks the verdict, the round notes, the next step's round, every number and the word limits.

## Sources
- Built on the SkillSafe skill @alirezarezvani/runbook-generator: https://skillsafe.ai/skill/@alirezarezvani/runbook-generator
- Background: a paper spinner on a needle is often shown online as a "psi wheel" or telekinesis test; this page treats it as a fair-test exercise in ordinary physics.

For fun and curiosity, not professional advice. It says which ordinary push the rounds point to, nothing about minds in general. Keep the needle steady and away from fingers, use a light clear cup, and never put a flame, candle or heater near the paper.