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Video Brain Teaser #24
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and “Find the Twin” proble
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chandra_avinash said – Sun, 21 Jun 2009 21:35:45 -0000 ( Flag Edit Link )
hi riyana,
there are no grey areas – but it appears that way due to an intrinsic quality of the human eye;
in this case, our eyes tend to fill out the colors b/w the black squares and the white gaps – hence the illusion of grey squares;
interesting, isn’t it?