One of the most enjoyable things about optical illusions is the after-effect . . . the moment when you and whoever else you've done it with let out a collective, "ohhhh." If you think this experience ...

Have you ever looked at two circles of exactly the same size and sworn one was larger? If so, your eyes have been tricked by the Ebbinghaus illusion, a classic example of how context can shape what we ...

Visual illusions, such as the rabbit-duck (shown above) and café wall (shown below) are fascinating because they remind us of the discrepancy between perception and reality. But our knowledge of such ...

Mad Science held an interactive event at Melbourne Square featuring optical illusions and detective science for kids.