Optical Illusions

Now that's what I call thinking outside the box.

I promise these white circles are all moving in straight lines.

I still don't know which way it's spinning.

Our ears can be boggled too.

And it was discovered by accident.

But your brain will think it does.

Colour me perplexed.

I am so confused.

This may be the world's oldest optical illusion.

Here's how to make it stop.