Rotating Grid Optical Illusion

Alex

This is pretty trippy: David OReilly found that a large grid rotating at a certain speed will appear to group itself into smaller grids, rotating independently.

It appears the persistence of vision effect overrides our knowledge that this is a single grid and divides it up optically. This only seems to work on a uniform grid (I also had interesting results with a brick formation), but the effect is lost when using a checkered texture.

http://www.davidoreilly.com/blog/2008/07/rotating-grid-illusion/


Comments (9)

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hmmm. not cnvinced either - the horizontal lines definitely interlace at certain points. rapid scrolling up and down stops it as well. i think we'd have seen this in real life before if it were real...
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A little scary. Whoever leads this group would have a lot of power.
I think I saw a part of the intro to "Mindhunter" in the clip, as well as a scene from "The Joker" where the joker puts on his makeup. I wonder if it is just coincidence and they made their own video, or if they took clips from various sources.
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45 years ago, the military tried to recruit me out of college. With no agenda other than looking out for my well being, I asked, "How can you expect to get anyone any good when you are offering one third the wages of civilian jobs?" If he gave an answer, I do not remember it.
If there is one branch of the military that should be good at finding employees, it should be PSYOPS. That they need a recruitment video has me worried.
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