Technology Is the End of Magic

If you shine sunlight directly on a prism, you will find that there will be no rainbow. In fact, the light will converge. At this time, the prism's effect on light is more like a half convex lens. What will break up into rainbows must be light beams. For example, in history, Newton saw the phenomenon of dispersion by making a small hole in the wall of a darkroom.

It can only be said that the scientific method of "discovery, induction, and experiment" is suitable.