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Which way is the train going?
Look at it long enough or blink your eyes, you will find you answer will change. This is also called the “wagon-wheel effect”. (source)
Physicist Albert Einstein or Marilyn Monroe? Well, it depends on
- how good is your eyesight?
- how far are your eyes to the picture?
Are the dots changing color and orbiting the center? If you only focus your eyes on a single dot, you will realize they are not.
Stare at the dot in the center of the colored version, then wait till the picture change to black and white and see what happens.
Isn’t the wall still colored until you blink?
The yellow and blue blocks are moving simultaneously, not one after another!
Can you believe square A and B are exactly the same color?
I didn’t believe it either, but here are the proves …
This is classical. The horizontal lines are actually straight and parallel to each other.
Paper dragon illusion
See what happen to those yellow dots if you stare at the blinking green dot in the center for a few seconds… Can you believe the yellow dots can escape from your eyes?
Running cat with a black card
Impossible triangle. It is actually a letter “z” but viewed from a very specific angle.
Which car is bigger?
They are the same size. Here is the prove.
Lastly a quote from Benjamin Franklin: Believe none of what you hear, and only half of what you see.”