- #1
caseytrimble
- 8
- 0
I was walking through my house the other day and noticed a circle of light on the wall. I traced it back to a nearby window, but noticed that the opening was square. When I put my hand close to the opening, the light made a square, but as I walked backwards and kept my hand in the path of the light, the image slowly changed from a square to a circle. I'm sure there is a simple explanation for this phenomenon.
Can anyone explain?
Can anyone explain?