Moire, status:deleted, and status:deleted

Moiré pattern

A pattern that emerges when two grids are superimposed over one another.

Examples:

post #1436922: Scan artifacts, interference between halftone screen in the original image and scanner samples.
post #2558106: Resizing artifacts, interference between halftone grid and pixel grid.
post #2765030 (music staff), post #4309196 (fabric pattern), post #1184284 (block texture): lack of anti-aliasing.
post #2033517 (click "view original"): intentional easter egg.

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