Light, refraction, polarization, and optical phenomena
14 Jun 2026
See how light waves interfere and diffract with four interactive simulations — Young's double slit, single-slit diffraction, and diffraction gratings explained.
26 Apr 2026
Interactive ray diagram for the thin lens formula — adjust focal length and object distance to see real and virtual image formation for convex and concave lenses.
20 Apr 2026
Why do roads look wet on hot days? The atmospheric optics of inferior mirages, superior mirages, and Fata Morgana — real physics, not illusions.
12 Jan 2018
Polarization, anaglyph filters, and active shutters — the physics of stereoscopic vision.