Believe it or not, they were found by four teenage boys!
Answer:
Three Primary Colors (Ps): Red, Yellow, Blue. Three Secondary Colors (S'): Orange, Green, Violent. Six Tertiary Colors (Ts): Red-Orange, Yellow-Orange, Yellow-Green, Blue-Green, Blue-Violet, Red-Violet, which are formed by mixing a primary with a secondary.
Answer:
should be published immediately because of the title
The Sabatier effect is produced by re-exposing a photographic material to light part way through the development process. This gives the resultant image both positive and negative qualities. It is sometimes incorrectly referred to as “solarisation”.
