Preface ALOHA ARTISTS. This page is toward color theory, about colors of light matching colors of pigment and colored crystals. In this course "All About Color" are crystals and their element composite make-up, plus the colors wavelength characteristics, because they influenced this pigment to light Real Color Wheel
History. Before the development of the safety lamp for use in coal mines, dried fish skins were used in Britain and Europe as a weak source of light. This experimental form of illumination avoided the necessity of using candles which risked sparking explosions of firedamp.
A Gond woman from Raigarh, Chhattisgarh, stands outside her home, which is set to be acquired for an opencast coal mine operated by Coal India Limited, for which land acquisition takes place under the Coal Bearing Areas Act, still exempted from acquiring adivasi consent or conducting Social Impact Assessments.