You may of recently seen that "Which way is the ballerina spinning" advertisements. Well we've gone a little in depth, and done some research, so you don't have to! It turns out, there actually is some truth to it after all! We'll also show you some other illusions as well, some optical, some logical!
One thing to know first is; which way you see the ballerina spinning, has nothing to do with which side of you brain is stronger. That is just a common misconception. Where that theory came from, I got no idea. Also, it's actually called the "Spinning Dancer".
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Spinning Dancer. Created by web designer Nobuyuki Kayahara.
If the foot touching the ground is perceived to be the left foot, she
is spinning clockwise. If the foot touching the ground is perceived
to be the right foot, she is spinning counter-clockwise. |
Now, you may see it going counter-clockwise, or clockwise, either way, you're right!
The thing about the dancer is, it has nothing in it for depth perception. Due to the lack of cues for depth, you're brain ends up making it's own, imaginary cues. For example, see that one arm sticking out, when it's swinging to the left, is it swinging in-front of her, or behind her?
Now, some of you may be able to change the direction whenever you want, and some of you may have to focus as much as you can for it to change.
Then there's the Necker Cube. A little bit more of a simplistic idea, one anyone of you could draw on a simple piece of paper.
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| Necker Cube. Designed in 1832 by Swiss crystallographer Louis Albert Necker. |
This one, once again, relies on the lack of depth cues. Which square is in-front? Yet, again, either one is correct!
Now we got, well I don't know what it's called exactly, but we know how it works!
Then there's this, whatever this is. All I can tell you is, it's a black-&-white photo, that appears to be in color. (Now, not that we want to scare anyone, but when it comes to optical illusions like this, you can actually become color-blind if you look at it too much!)
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| I don't now what it's called, but just read the instructions on the picture! |
This one works slightly different, what it does is, it displays certain colors. Now, in order to understand how it works. You have to understand that, you eyes only see Red, Green, and Blue (white being a combination of all three). Every other color we see is actually a combination of these three colors.
In our eyes, we have these thing called cones. Cones are what allow use to see colors. By starring at blue (like in this picture), you're making your cones less sensitive to blue.
So now when you see, yellow (red and green) in this black-&-white picture, you are actually looking at white. A simple equation is, (white - a = b), where "a" is the color you see prior, and "b" is the color you see after. So for the left building, (white - blue = red and green), and (red + green = yellow).
More soon!
and Series.
