When you first look at this, how many colours do you see? Some might say they see 3 or even 4 colours, but there are 2 - red and green! People usually think they see 2 shades of red, but there is only 1. Look closely and you will notice on one side that white boxes surround the red boxes, and on the other side, green boxes do! Due to the placement of these boxes you get the "illusion" of different colours. Since white is not considered to be a colour (it is the presence of all colours in scientific terms) we can safely say that there are 2 colours present here! Still don't understand?
Can you read the below?
Have you ever noticed a hidden arrow in the FedEx logo? It stands for speed and precision. Check the space between "E" and "x".
A perfect circle.
A nice visual illusion using perfect squares.(© Akiyoshi Kitaoka: Used with permission.)
Can you find "the hidden tiger"? Not the obvious one that everyone sees. Look for words in stripes (by Donald Rust).
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