answer to free brain teaser #1, about optical illusions

answer to free brain teaser #1

paradox

optical illusions – a form of brain teaser

optical illusions rely on the eye to make the impossible look possible, or to fool the mind. There are many optical illusions that exist. The most common one is with lines that look of different length. That is commonly known as the Mueller-Lyer illusion.

Optical illusions that tease the mind have been around for a long time. The most common ones, however, are ones by an artist called M.C Escher. These are known sometimes as Esher’s, sometimes as ‘impossible structures’, and sometimes by other names. Esher’s works contained elements of mathematics. Although he was not a mathematician, he was interested in mathematics and frequently incorporated maths into his artworks. Most of his most famous artworks are optical illusions, and may or may not be coloured. Escher worked with many print mediums, and some of his paintings are in watercolour, some in woodblocks, while other still are in other forms of printing.

Here is this week’s free optical illusion for you to enjoy:

Free brain teaser #2

This is known as the ‘impossible triangle’, and no – there is nothing to solve. You have this picture to look at all week. Enjoy.