I don't believe we talked about Moire much during the lecture, but this came to mind when I saw this slide: https://xkcd.com/1814/

Notes to remember the type of each effect: Jaggies: staircase-like edges / lines. Wagon wheel effect: wheel appears to rotate in a different way (stopped, different rotation speed, rotating backward). Moire: fine pattern (for example, a striped shirt) that isn't captured well by a given sampling pattern.