My favorite optical illusions

I’m too lazy to write a post tonight, so I’ll post some of my favorite optical illusions instead. Click the images to make them larger.  Stare at them long enough and freaky things will happen.

Optical illusion #1: Peripheral drift

opticalillusion1

Optical illusion #2: “Sponge Bob” wallpaper illusion. Just stare at this thing.

opticalillision2

Optical illusion #3: impossible dice.  Could you build this in 3 dimensions?

impossibledice

Optical illusion #4:  fractal image.   Try to stare at this and not go insane.

fractal

Optical illusion #5:  Einstein or Marilyn Monroe?  To see Marilyn, stand a few feet away from your computer screen.

einsteinormarilyn

Optical illusion #6: disappearing circles.  Stare at the + in the center.  The disappearing circle will turn green and then all the circles will disappear.

freakyillusion

Optical illusion #7: Tesseract (hypercube).  Stare at this thing awhile.   It’s a cube in 4 dimensions.  Try to imagine such a thing rotating like that in 3 dimensions.   Your brain might explode.

tesseract

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