In the beginning the electron was thought of as a small ball of electric charge. With the development of the theory of relativity physicists got into troubles with this simple picture. The electron was rotating, but the speed of rotation was much too high. Calculating the mass made problems. Quantum theory solved some of the difficulties, but only by losing an intuitive understanding. The location of the electron became uncertain; the ball turned into a diffuse cloud. Simple experiments with beams of electrons clearly demonstrated truly queer properties of electrons. The particle turned into...
In the beginning the electron was thought of as a small ball of electric charge. With the development of the theory of relativity physicists got into ...