Believe it or not, the photo below hasn’t been Photoshopped:

The guy who took the photo says:

The cheap CMOS sensor of an iPhone does not expose the whole thing at once, it scans from left to right. If you take a picture of something that moves very fast (like an airplane prop) you can get some crazy pictures out of it since each column represents a slightly different time.

This oddball-but-cool effect is reminiscent of some of the distortions you see with scanner photography (for some examples, see this page).