Here’s another classic, known as the Muller-Lyer illusion. Which of the horizontal lines is longer? Here is the same image, only bigger:
Here is an “impossible” version pictured with a high degree of realism. The two points where the linear edges must overlap have been purposely confused. The resulting figure produces an ev
Do you find that black spots appearing? How many black dots can you count? This illusion is a classical one and originally discovered by Elke Lingelbach.
The idea is to focus on the dot in the centre and then move your head constantly towards and away from the monitor. You should see the circles rotate spookily! Press the F11 key in your browser to see
Which way is the wheel turning!? Focus on the red dots and follow them round… it appears to be rotating anti-clockwise. However, if you follow the yellow dots round instead, the whole wheel will
If you can cross your eyes, so that both pictures slide ‘into’ each other – to form a third, 3D image between them, the effect you will see is truly stunning! Try focusing on somethi
All of the red lines are completely parallel would you believe?
See a new color you’ve never seen before!!…Well… at least never before on your monitor. It’s a startling example of how poor the green/cyan element is on TVs and monitors gener