MYSIMULATOR / INSTRUMENT LAB

S-120 / SEED 912120

The Sextant

Mid-19th-century marine navigation instrument · interpretive 3D study

Measured angleDEGREES

40.0°

Calibrated altitude / included angle

Measured angle in degrees

0°60°120°

INDEX ARM ROTATION−10.0°

REFLECTION MULTIPLIER× 2.00

Optical principleGEOMETRY

Two mirrors turn a 30° movement of the index arm into a 60° change in the measured angle. The double-reflection law is represented directly in the slider and 3D mechanism.

Drag to orbit · scroll to zoom · ← → adjust angle · space to animate

BRASS · GLASS · EBONY
MODEL / GLB 2.0

WEBGL2 · LOADING

LOADING PRECISION INSTRUMENT

OPTICAL NAVIGATION / S-120

Made with 🤖 ChatGPT · Three.js