4/30/08

Algumas ilusões ópticas

Beautiful scene. But there is something more to it.
hidden baby

It is quite interesting that all numbers can be created by using only two numerals - 4 and 8.
84 illusion

1st Color Blindness Test - can you see a "12" on this plate?
number 12

2nd Color Blindness Test - there is a "26" on this plate.
number 26

3rd Color Blindness Test - can you trace a line from one "X" to the other?
trace a line

4th Color Blindness Test - you should see 58 (upper left), 18 (upper right), E (lower left) and 17 (lower right).
are you color blind?

There is nothing moving on the picture. (© Akiyoshi Kitaoka: Used with permission.)
no motion eye illusion

Another static picture. (© Akiyoshi Kitaoka: Used with permission.)
no motion

Motion is just an eye illusion. (© Akiyoshi Kitaoka: Used with permission.)
no motion

There is nothing moving below. (© Akiyoshi Kitaoka: Used with permission.)
no motion

Boats on the picture are not moving. It's just an eye illusion. (© Akiyoshi Kitaoka: Used with permission.)
boat race

Who do you like more - women or saxophone players?
player and woman

Are there really just flowers?
flowers and faces eye illusion

Is this really a spiral?
spiral

Are the horizontal lines parallel? (of course they are)
lines2

If you can read the following picture, then you can shout ...
hurray

bad eyes

You may read across and upright.
A-B-C or 12-13-14?
ABC

This impossible object is called "Devil's Fork" or "Schuster's Conundrum" (by D. H. Schuster)
devil's fork

Given the wood do you think you could make this?
building1

Or this one?
building2

A realistic photo?
photo

Try to arrange dices like this.
dices

Another interesting building.
building5

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