http://physlab-wiki.com/ 2026-04-22T11:10:34+00:00 http://physlab-wiki.com/ http://physlab-wiki.com/lib/tpl/UChicago/images/favicon.ico text/html 2025-06-02T11:07:59+00:00 Anonymous (anonymous@undisclosed.example.com) http://physlab-wiki.com/physicsdemos/waves_and_optics/color/artificial_sunset?rev=1748876879&do=diff Artificial Sunset Needed Solutions: * Sodium thiosulfate solution (4.5 g dissolved in 700 mL of water) * Strong acid dilution (some dilution of 0.5 mL of concentrated sulfuric acid i.e. 18.18 mL of 0.5 M sulfuric acid) Place sodium thiosulfate solution in a transparent container in front of a high-power slide projector. Using a circular aperture at the focal point, the projector is used to image a sharp disk onto a wall or screen. Adding the sulfuric acid solution to the container caus… text/html 2021-11-05T16:49:44+00:00 Anonymous (anonymous@undisclosed.example.com) http://physlab-wiki.com/physicsdemos/waves_and_optics/color/color_mixing?rev=1636145384&do=diff Color Mixing A multi-color 3 led light source with adjustable intensity controls. A mask and color filters are also available. F0 PIRA DCS 6F10.00