Field Bulletin · Optics

The Light Museum

From candles to lasers — how light bends, bounces, and reveals the invisible. Build optical paths, trace rays, and explore 12,000 years of illumination.

Hero · Live Optics

Ray Tracer

Place lenses, mirrors, and prisms. Snell's law (n₁ sinθ₁ = n₂ sinθ₂) bends every ray at each interface; the lensmaker's equation handles curved surfaces; total internal reflection kicks in past the critical angle.

Section 02 · Timeline

12,000 Years of Light

Key milestones from 10,000 BC to 2022 — from the first oil lamps to JWST's mid-infrared instruments.

Section 03 · Playground

Hands-on Instruments

Refract light through eight common media with Snell's law, explore the full electromagnetic spectrum, and watch intensity fall as 1/r² from any source.

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