The photo is found here.
Here are some weird shots from a scanning camera.
Though not really related to the moire effect mentioned in last post, I just remembered the amazing visual effect of this photo. The effect is said to be from the shutter scanning across the frame. I guess the iPhone has an electronic shutter instead of mechanical one with a moving slit going across the frame, though I'm not sure how it's relevant to the effect.
I'm wondering though if this photo is not composed from several exposures, each one having one strip of that propeller?
Alex found this video which shows just how this happens, very kewl.