Optical illusions
Are these horizontal lines straight or are they curved ?
Move your head around.
What did you see ?
Can you count the black dots on the image.
Is the blue side in the front or back of the cube?
It's a spiral, right?
Take a closer look, it is a grouping of circles.
Look carefully at the center circles on both the left and right.
Which circle is bigger?
They are same sized !
This relative size illusion is called the Ebbinghaus illusion. It was discovered by Hermann Ebbinghaus, a German psychologist, in the early 1900s.
Which circle is bigger?
They are same sized !
This relative size illusion is called the Ebbinghaus illusion. It was discovered by Hermann Ebbinghaus, a German psychologist, in the early 1900s.
How many legs does this elephant have 4 or 8?
The impossible elephant was drawn by American cognitive scientist Roger N. Shepard.
What do you see ?
A lady or a musician?
Or both?
Is the following object physically possible or not ?
Which vertical line is longer?
They are both the same length, actually.
If you don't belive, measure them.
How many prongs does this fork have?
3 or 2?
Are the two purple lines parallel ?
Are these black lines straight ?
What do you see?
look closer.
It actually spells a word.
This one will make you dizzy.
Try focusing on just the center circle while moving your head.
Look at the red lines, do they appear to be wavy?
They're actually straight, the circles make them appear wavy.
The Impossible Triangle.
Can you see the triangle?
It actually doesn't exist. The angles on the three images, however,
give the appearance that it does.
Did you catch the two "The"s? Most people miss this obvious redundancy.
Are the red lines perfectly straight?
Which square is darker A or B ?
Square A isn't it ?
But believe me, they are same.
Are these circles rotating ?
This image appears to be wavy.
Tip: Move the scrollbar on the right up and down to maximize the effect.
Stare at the center of this image and move your head toward the screen.
The outer circles appear to spin.
Stare at the the middle of the gears.
The gear wheels should appear to SLOWLY rotate. The one on the left side of the screen
should turn clockwise and the one on the right side of the screen should turn counter-clockwise.
The green, red, and blue are the same throughout but
they look different with various colors around them.
Can you find THE HIDDEN TIGER in this picture ?
Look at the strips on the body of the tiger if forms those words.
Stare at the four dots in the middle of the picture for about 20 seconds and then keep blinking your eyes at any white surface.
You will see the picture of Jesus Christ.
Stare at the red dot at the centre and after a while the hazy black dust will start to disappear.