What Makes Light Bend Around Corners?

Imagine you're playing with a wave in the bathtub, when it hits the side, it doesn't just stop; it kind of spills over and keeps moving. That's like what happens to light! When light waves hit something, like a corner, they spread out a bit instead of going straight. This is called diffraction, and that's why you can see light around the edge of a door or from one room into another, even if it’s not directly in front of you.

Light behaves like waves, and when these waves meet something like a corner, they bend around it just like ripples in water. The more spread out the wave is, the more it bends, so smaller corners make bigger spreads!