Close your left eye and just focus your right eye on the tiny cross. At some point the big circle will disappear as it crosses your 'blind spot'. If you can't see this effect, then try sitting closer/further from the screen,try maintaining a proper distance.

You will find out that different people have their blind spots in different areas,so try this experience with your friends or anybody.
4 comments:
woah!! thats so wierd!!
Thattss Sooo Cooll(:
apparently I don't have a blind spot....
omgee that iz so cool,,u have to be at eye level 4 it to work,,,it made mi eyes water
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