When taking a picture of a screen there are these weird lines that when viewing the pic in different sizes or resolutions causes different lines to appear
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It’s called [moiré](https://en.m.wikipedia.org/wiki/Moiré_pattern). Basically the screen is made out of tiny individual squares called pixels, which are aligned in a grid, and your camera has a sensor that processes whatever you take a picture of into pixels as well. If the pixels-grid on your sensor misaligns with the pixel-grid on your screen you get these moiré lines.
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