spirits

https://www.youtube.com/watch?v=4RMgOTJICNw       ===   Dicyanin is a synthetic dye compound that belongs to the class of cyanine dyes. It is also known as “Steinheil’s Dicyanine” after its discoverer, the German chemist Johann Georg Theodor Steinheil, who synthesized it in the mid-19th century. Dicyanin is notable for its unique optical properties, particularly its ability … Read more