“You probably know that we perceive five basic tastes, and that taste has something to do with the tongue and the brain. But a new study shows just how weird our perception of reality truly is: Scientists showed that all it takes to convince a mouse that their mouth is full of sweet nectar or bitter poison is the manipulation of a few brain cells.”
“Changing a color’s appearance by changing the background or lighting is one of the most common techniques in optical illusions. As the examples below show, colors can change dramatically against different backgrounds. (If you’ve ever held a sock up to something black to see whether it was black or navy, you understand the concept.)”
A nice explanation of the “debate” on what colors people perceived when they saw the picture of some dress online.
“From normal-looking upside-down faces turning grotesque to horizontal lines appearing to slope but are in fact parallel, RICHARD WISEMAN chooses his ten favourite optical illusions.”
http://www.dailymail.co.uk/home/moslive/article-1314281/Ten-greatest-optical-illusions.html
“This series of 3D printed sculptures was designed in such a way that the appendages match Fibonacci’s Sequence, a mathematical sequence that manifests naturally in objects like sunflowers and pinecones. When the sculptures are spun at just the right frequency under a strobe light, a rather magical effect occurs: the sculptures seem to be animated or alive! The rotation speed is set to match with the strobe flashes such that every time the sculpture rotates 137.5º, there is one corresponding flash from the strobe light.”
TOK Topics 