In fact, the origin of the film originated from two people who did not accept anyone, one is Cohen, the other is Stanford, the one who founded Stanford University.
On one day in 1872, two people bet, Stanford said that there will always be an instant when the horse is running. The four hooves are off the ground. Cohen said that it is impossible. No matter how fast the horse runs, there will always be a hoof that is on the ground. The two argued because of this problem.
Later, the two-person friend photographer Edward decided to resolve the dispute between the two. It was set up with 24 cameras on the side of the preset runway. When the horse ran across the runway, the shutter was triggered in turn, and 24 photos were obtained. Connect them together to get a horse, every detail of the run. It turned out that Stanford was right. It was true that the horse’s feet would stay in the air for a while.
But this is not important. The point is that when I quickly look at the photos, I found that the horse actually lived. This was an amazing thing at the time. Later, this thing was known to Edison. He was very interested in this principle. Years later, a mobile image camera, a camera, was invented, and five years later the film was born.