tensyl◌
THE LIGHT SPRINGA little table for gentle forces

A POCKET-SIZED EXPERIMENT

Pull with light.
Find your balance.

Move the glowing light, not the bead.
It pulls the thread without touching it.
Hold the gold force band to earn a seal.

STUDY 01 / 06

MOVE THE LIGHT ↔FORCE 0.00TARGET 1.10
● Light holds the beadSlow is lovely.
Hold the gold band0.0 / 1.8 s

Drag the light gently to the right. Watch the force needle.

YOUR LITTLE FIELD NOTES

Six ways to be gentle.

0 / 6 seals

WELCOME TO THE TABLE

Move the light.
The bead will follow.

  1. Drag across the dark table or move the Light position slider. The dashed halo is the center of your trap.
  2. The bead lags behind the light. The soft thread pulls back. Its stretch makes the force shown by the gold needle.
  3. Settle inside the gold band. Keep it there until the ring fills to earn a seal. No rush, no limited lives.

If the bead slips away, bring the light back to the bead. More light strength gives a firmer hold. A little nudge reveals a suggested resting position.

Keyboard: ← → move light · ↑ ↓ light strength · Space pause · R restart · H nudge.

Progress stays on this device. Sound is optional. The six studies are always available.

BEHIND THE GLASS

A toy about light and tension.

The bead follows an overdamped spring balance: a light trap pulls one way, a thread pulls the other. A finite capture zone lets it slip. The model uses fictional units and simplified rules.

Inspired by recent optical-tweezer research. This is an original interactive game, not a laboratory or medical simulator.

GitHub background reference: NanophotonicsLab (MIT; reference only). No upstream code or artwork copied.

Original code: MIT. Bead and instrument artwork generated with GPT Image and bundled locally. Full source and provenance: NOTICE.txt.