Cool sculpture creates moiré pattern when viewed

Constructive Interference is a laser-cut sculpture that demonstrates the "double slit" phenomenon that causes periodic wave patterns. I've posted about the math involved previously.

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This trippy GIF reveals patterns each time you blink

Take a quick tour of how your brain processes patterns by blinking at different speeds while looking at this GIF. You'll probably see concentric circles appearing in different places, and possibly pentagonal lines now and then. Read the rest