RHETT ALLAIN SCIENCE 03.25.16. 2:31 PM.
HUMANS HAVE PROBLEMS with quantum mechanics. We have excellent intuition about the motion of a tennis ball tossed in the air, but what about an electron trapped in a box? The tendency is to use the same tennis ball rules and apply it to the electron—but it doesn’t work. We have to use different models to explain properties of very very small things. We call this quantum mechanics (as opposed to classical mechanics).
Of course I can’t go over all the details of quantum mechanics, so let me give you the abridged version.
Source: You Can Solve Quantum Mechanics’ Classic Particle in a Box Problem With Code | WIRED