The Schmedit Size Illusion

The figures in the image are of same size,but the appears different (smaller and bigger).

Tracheal Tube Illusion

Most people will find the vertical tracheal tube to be longer than the horizontal one. As you might have guessed, they are both exactly the same size.

Table Size Illusion

The length of the tabletop on the left any different than the width of the tabletop on the right?
This optical illusion was created by Roger Shepard (”Turning the Tables”), the dimensions of the tabletops are amazingly the same!

Mysterious Flowmeter Illusion

This anesthetic machine has a CO2 flowmeter ! If you try to turn it off, you will be confused in finding the knob


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3D Elephant Size Illusion

The left Elephant looks bigger ? But in real both the elephants are identical in size.


- Bryce

3D Ball Sizes Illusion

The 2 red balls in the middle are identical in size and shape , but the left one looks more bigger than the right. Try ignoring the cannon shot.


- Bryce

Biggest Elephant Illusion

This illusion is from a very old newspaper cutting though the same illusion (or variants on it) appears in popular publications today. The caption invites the reader to guess which elephant is bigger...but this is an illusion: They are all the same size. If you don't believe it, try measuring them with a ruler.

The illusion makes use of two devices to suggest distance - the perspective lines receding to a vanishing point and the use of shading. Because these features cause the eye to think that the darkest elephant is nearer, we assume it will appear largest. The fact that the lightest shade of elephant appears larger fools us into thinking it is actually a bigger elephant.

Circle Size Illusion

Which red circle is larger?

They are both the same size.

Explanation

When we look at a two dimensional object, our eyes automatically try to convert it to three dimensions, because we live in a 3D world.

In this optical illusion, since the upper tire (gray circle) is smaller, we assume it is farther away than the lower tire. The inner white circles are the same size, but since the upper white circle covers, proportionally, more of the gray area, we assume it is larger.

Variations of this type of perspective optical illusion are very common.

Lines Optical Illusion

Can you figure it out which Line is bigger ? Or both of the lines are of same size ?

Bar Size Optical illusion

Which inner white bar is longer? Its so confusing wright,the Answer is that both bar is of same size.Check similar Size Illusions

Lyer illusion

Both lines have the same length. The different angles make one line seem longer. This was first discovered by Franz Müller - Lyer in 1889. He was a German psychiatrist and sociologist.Try more of this Illusions

Confusing Tables Illusion

These tabletops may look different in size when you see,but acutually they are identical in shape and size.If you measure both you will find there is no difference.

Line Size Illusion

The two horizontal lines have the same length. You would think that the upper line is bigger. This is also called the railroad track illusion.

Jastrow illusion

The top object appears to be smaller then the bottom one but they are actually the same size. Move the top shape over the bottom to see that they are the same size.
They are the same size but the short edge of the orange one is compared to the longside of the red one. Therefore, the red figures looks as if it were longer.

The Jastrow illusion is an optical illusion discovered by the American psychologist Joseph Jastrow.In 1889, psychologist Joseph Jastrow asked this question: which one of the two bars are larger? Easy - the bottom one, right?
Wrong (or else it wouldn’t be an illusion now, would it?) Find out the right answer:

Ebbinghaus Illusion

In the traditional presentation of the Ebbinghaus illusion, two central circles are of the same physical size appear to be different sizes as a result of the context circles surrounding them. Which central red circle looks larger?

I hope you answered that the one on the left looks larger, but what if I asked you to pick up each of the two central circles? Would your reaching movement betray a susceptibility to the illusion?
Actualy those both red circles in middle are in same size.

david and goliath vintage illusion

The ink’s density in the left figure makes it appear larger than the right, when in fact they’re the same size. From a German/French magazine. Translated:

When you lay the figures next to each other in the same direction it appears that the one in front is bigger. Both are really the same size. Cut out these figures.

Impossible Lenght illusion

Which is longer? Line AB or BC .you must be really getting cofused that line Bc is big Scale it and you will find the difference .
They are actually the same length.