what are those patterns we see when taking a picture of a screen?

Question

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

In: 6

Answer 1

[when two grids interlace, visual patterns emerge from the junction](https://upload.wikimedia.org/wikipedia/commons/e/e3/070309-moire-a5-a5-upward-movement.gif)
You are seeing the grid of the camera sensor over the grid of the screen.

Answer 2

[when two grids interlace, visual patterns emerge from the junction](https://upload.wikimedia.org/wikipedia/commons/e/e3/070309-moire-a5-a5-upward-movement.gif)
You are seeing the grid of the camera sensor over the grid of the screen.

Answer 3

As a one-dimensional analogy, consider how two sine waves of nearly (but not quite) the same frequency alternately reinforce and cancel each other.

Answer 4

As a one-dimensional analogy, consider how two sine waves of nearly (but not quite) the same frequency alternately reinforce and cancel each other.

Answer 5

As a one-dimensional analogy, consider how two sine waves of nearly (but not quite) the same frequency alternately reinforce and cancel each other.