Find your blind spot
Everyone's got a blind spot, that thing they told you about when you got your driver's license and makes overtaking on dual lanes dangerous.Don't know what a blind spot is? Here's a simple way of defining it:
An area where a person's view is obstructed.
Well, a blind spot is actually a generic name for, well, a blind spot. When it happens on your brain (unrelated to what happens with your car's mirrors), it's called a psychological blind spot. And it happens in the verge of your eye's capability to perceive light. That is, at a certain peripheral point, your retina can't catch light and you can't see what's there.
I don't really want to get too technical here, but I leave here an image with which you can test your eyes and discover your blind spot.
(click on the image to make it bigger and easier to get the desired effect)
Now, cover your left eye with your hand and look at the dot on the left. Stay aware of the cross on the right, but don't look at it. Move your head closer and farther away of the monitor and you'll notice that at some point the cross on the right will disappear.
Stay at that distance to the monitor, cover your right eye and look at the cross. You won't be able to see the dot unless you move your head. This also works with colored backgrounds.
There's your blind spot.
Pretty cool, uh? Now think on everything you're missing from the world around you as this happens.... :)
adapted from io9.com
-João
