Here’s the challenge, the image of the frog on the right isn’t coloured in. The trick here is to use the Magenta shape on the left to colour the frog in, only, we need the frog to appear GREEN!
Here’s what you need to do:
- Stare at the Magenta shape on the left for 60 seconds
- Then stare across at the frog on the right.
- Voila!
Click on the image below to view an enlarged version as this makes this experiment easier to complete.
This is a simple experiment to show the phenomena called Qualia.
Also Magenta isn’t a colour.


