Photography

Photography is much different than it was when it was first invented.  Camera obscura was the first time the outdoors was projected onto another surface.  This light was then exposed to a plate covered in chemicals and later developed in other chemicals to permanently keep the image on the plate.  Many of the original chemicals used were toxic and took a long time for the photograph to remain.  Different chemicals improved upon the time and safety.  Then, motion was captured by using many glass plates and then played through a variety of methods that quickly moved the frames in front of a person's eyes.  The next step was to use film strip instead of glass plates.  After that, sound was recorded in synchronization with the moving images.  This slowly became modern-day film.