Fun Optical Illusions

[Cúchulainn]

Stare at the cross of a few seconds.
What happens?


Lilac Chaser
Post anymore optical illusions you found.

[Hattori]

OMG!!!! HOW!!!! the balls just disapeared!!! +rep

[Cúchulainn]

Magic

[ajm317]

That was weird.

[Chaigidel]

very nice

[Thanatos]

A test! I will give a rep point to whoever can tell me why the picture seems to vibrate on its own.

[Roshak]

Because of the drawn perspective to the center with the lines you get the sense of depth. With the sharp contrasts and mixture of smooth contrasts you generate the feeling of motion. Since the lines do not fully extend to the center ( or rather they do but are less in quantity or less noticeable) you get the sense of the pulling away from you at a fast pace due to the lines sharpness.

If that made sense to anyone what so ever +rep to them.

[Mathias]

Because of the drawn perspective to the center with the lines you get the sense of depth. With the sharp contrasts and mixture of smooth contrasts you generate the feeling of motion. Since the lines do not fully extend to the center ( or rather they do but are less in quantity or less noticeable) you get the sense of the pulling away from you at a fast pace due to the lines sharpness.

If that made sense to anyone what so ever +rep to them.

It made somewhat sense to me

[Banned]

Here are a few more:
While looking at the cross below,move forward or away.


An old one...


This one looks like an impossible triangle but it actually isn't.PM me if you want to know how to make it.


If you look carefully,you will see waves down below...


Stare at the spiral below for 30 secs and then take a look at your hand or any other small object,you will see some distortion or movement.


Scariness ahead...

Spoiler Alert, click show to read: 

The picture below shows some women looking at themselves into a mirror but it represents a scary illusion of a monster.

[kev-o]

This one is awsome

[chris_uk_83]

I hate my brain. It stops my eyes seeing what is actually there!

[Banned]

I hate my brain. It stops my eyes seeing what is actually there!

Without your brain,you could never solve the Physics questions..



Anyways,you hate it...so,dump it!

[Thanatos]

Ze goggles mein Fuhrer, zey do nothinks!

[Lunar4]

This is quite fascinating.

FIRST: Concentrate on the four dots in middle of the picture at right for about 30 seconds!

NEXT:
Close your eyes and tilt your head back.

WITH YOUR EYES STILL CLOSED:
You will see a circle of light in your mind, and a picture will appear in the circle. For a few moments, with your head still tilted towards the ceiling, you will even be able to see it floating in the air when you open your eyes.

[DeeGamer]

Holy Jesus! I can still see it and i havent looked at it for about a minute!

[Zodiac]

I think it's called the Fraser Spiral and it's acutally a whole bunch of circles and not a spiral.

[Amorphos]

i love these things

good test of focus with some of them, as if you can firmly hold your focus squarely at one point the spirals don’t move.

i read recently that the eyes actually see in 2D the brain then creates a 3D world from that image, most illusions rely on the distortions involved in apparent 3D objects [i.e. that are actually 2d], and/or focus - defocussing away from the epicentre of that focus. also on size location divisiblity as with the vibrating images.
or something like that

in short our eyes are made for nature which rarely does this demonic stuff to you.

[Curtana]

Found on the internet somewhere or other. Can't remember where or when.


His Scorchness edited out my other (much better) offering because it was apparently too rude. Such is life. Now you'll never know what it was...

[Big War Bird]

If you look really carefully after a few seconds you'll be able to see Toronto's CN Tower in the background.

[LSJ]

@_@ OMG that is the scariest illusion I have ever seen!


BTW, usually if you right-click an image you can select "copy image location" from the menu... if the system you are using allows that. It copies the html and you can paste it into the website address bar or whatever.