first projected image represents a picture drawn on a into a "magic lantern" plates. They were made of glass so that light can pass through the image, projecting it through the lens to the screen. The first film projectors, like zoopraksiskopa Maybridzha, used a similar method of displaying images with a glass discs. Soon, however, the inventors realized that "living pictures" look realistic only if a second front of the lens is at least 16 frames. Glass slides were the same and too heavy, so they can be moved with sufficient speed, and too fragile. They often struggled during the passage through the mechanism of the camera or projector. In 1885, George Eastman, founder of Kodak, has suggested that the rolls of photosensitive paper may be more suitable for this purpose. In addition to its relative cheapness of such rolls to capturing more consecutive images than CDs or records, which allowed such pioneers as Louis Leprens, shooting long scenes instead of short skits. Unfortunately, they often rushed, especially when passing through the sharp teeth of gears, squandered them in front of the lens. Then, Eastman began to manufacture reels of the film or tape made of durable, transparent and flexible material called celluloid. The first such film was used in 1888 in the office of Marea. Later that same year, William Dixon has applied the so-called perforation - a number of holes, passing along the edges of the film, for which clung Gear. It is possible to adjust the movement of the film in the camera or projector and get a clear image. In the era of silent films to use a film width of 35 mm, it had certain disadvantages. The first films were made of easily flammable chemical (cellulose dinitrate), which is why very often overheated projectors lit. In addition, this film was very sloppy and careless storage of turned into a jelly-like mush. Unfortunately, too many old tapes lost forever for this reason.