Sunglass lenses, which one is best? For General Purpose use, the Dark Grey/smoke lenses are the most popular. They do not distort colors, they reduce glare to provide day-long comfort, and reduce ultraviolet...
Polarization is like a chemical venetian blind which rearranges light and lets you see "through" glare. 100% Polarized lenses are the only truly effective way of eliminating glare. Water, fog, rain, snow or...
Here is what I know to be true. There is always a gimmick to sell something, to someone. The Greenhouse so called effect. Was originally written in an edition of Scientific American in the latter 1980s. The...