Waiting room Memes

The empty seats are basically giving a masterclass in wave physics! Those shadows on the floor are showing the exact phenomena listed - light bending around obstacles (diffraction), bouncing off surfaces (reflection), changing direction between media (refraction), and creating those darker/lighter patterns (interference). The person's expression is priceless because these aren't just abstract concepts in a textbook anymore - they're literally right there on the floor proving physics is inescapable even in waiting rooms. Nature's way of saying "you thought you could skip optics class?"