Playground

Where phase becomes visible

A calm workspace mirroring every lesson. Switch modes to try a different phase behaviour — each mode gets a fresh simulation so nothing stale carries over.

Each mode reuses the same simulation as the lesson it comes from.

All 10 lessons
Phase circleA circular track with a point at 0 degrees, moving clockwise.0°90°180°270°360° = 0°
Current phase
0.0°

0.00 rad

Fraction of cycle
0.00

0% of one full cycle

Prefer a guided path?

Every mode has a matching lesson with a live explanation, "what to notice" prompts and an optional look at the mathematics.