YOU CAN CLICK ON THUMBNAILS TO ENLARGE PICTURE!!!!
Wavy Lines Illusion
Are these lines straight and parallel?
Use a straight edge to test what you see.
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The Bezold Effect
The Bezold effect is an optical illusion, where a color may appear different depending on its relation to adjacent colors.

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Kanizsa Triangle
In the accompanying figure a white equilateral triangle is perceived...

but in fact none is drawn. This effect is known as a subjective or illusory contour. Also, the nonexistent white triangle appears to be brighter than the surrounding area, but in fact it has the same brightness as the background.
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The Penrose Triangle
The Penrose triangle is considered the impossible figure.
The Penrose triangle appears to be solid on the page, but it cannot be built.
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Elephant Leg Illusion
How many legs does this elephant have?

4, 5, 6, maybe 7?
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Crazy Line Illusion
Analyze the 2 Purple lines.
Do they appear to be Straight Or Crooked?
Look Closely!

Believe It or Not...
- - - Those two Lines are Straight! - - -
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Crazy Objective Schematic Illusion
Is it possible to build this gadget?
Look Closely and try to determine the orientation of the picture!
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Tallest Soldier Illusion
Can You Pick Out the Tallest Soldier?
Did You Find Him? Hmm...
They Are All the Same Height!
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Impossible Monumental Columns
Are the columns square or round? Will they support anything?

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Crazy Line Trick
Are These Lines Straight Or Crooked?
Look Closely!
Believe It or Not...
- - - Every Line Is Straight! - - -
Wavy Lines Illusion
Are these lines straight and parallel?

Use a straight edge to test what you see.
_________________________________________________________
The Bezold Effect
The Bezold effect is an optical illusion, where a color may appear different depending on its relation to adjacent colors.

__________________________________________________________
Kanizsa Triangle
In the accompanying figure a white equilateral triangle is perceived...

but in fact none is drawn. This effect is known as a subjective or illusory contour. Also, the nonexistent white triangle appears to be brighter than the surrounding area, but in fact it has the same brightness as the background.
___________________________________________________________
The Penrose Triangle
The Penrose triangle is considered the impossible figure.

The Penrose triangle appears to be solid on the page, but it cannot be built.
___________________________________________________________
Elephant Leg Illusion
How many legs does this elephant have?

4, 5, 6, maybe 7?
__________________________________________________________
Crazy Line Illusion
Analyze the 2 Purple lines.
Do they appear to be Straight Or Crooked?
Look Closely!

Believe It or Not...
- - - Those two Lines are Straight! - - -
___________________________________________________________
Crazy Objective Schematic Illusion
Is it possible to build this gadget?
Look Closely and try to determine the orientation of the picture!

____________________________________________________________
Tallest Soldier Illusion
Can You Pick Out the Tallest Soldier?

Did You Find Him? Hmm...
They Are All the Same Height!
____________________________________________________________
Impossible Monumental Columns
Are the columns square or round? Will they support anything?

____________________________________________________________
Crazy Line Trick
Are These Lines Straight Or Crooked?
Look Closely!

Believe It or Not...
- - - Every Line Is Straight! - - -