HELPING THE OTHERS REALIZE THE ADVANTAGES OF SMOKE 

Ringelmann scale. A measure of smoke coloration. Invented by Professor Maximilian Ringelmann in Paris in 1888, it is basically a card with squares of black, white and shades of grey that's held up as well as comparative grayness on the smoke judged.“We discovered that hypnotic aversion suggestions induce brain regions related to aversion. […] F