Who invented negative film? explain how negative film is used in photography

Negative film was invented by Henry Fox Talbot. Negative film is a roll of film with a gel or lotion over it, with light-sensitive silver-nitrate crystals in the emulsion. When exposed to light, it creates a negative image. When we look at a negative image on film, all the light colors are dark and all the dark colors are light. This image can be duplicated or enlarged onto photography paper that is light-sensitive. Because the paper is light-sensitive, the image appears as a positive image.

the answer is counterpoint.

counterpoint definition: "the art or technique of playing a melody or melodies in conjunction with another, according to fixed rules."

counterpoint is present in a lot of baroque music- such as bach (notably his wtc prelude and fugues) and scarlatti, but can also be found in music by mozart, beethoven. it can even be found in music as modern as john williams!