Are the sentences correct or incorrect
1. Optical illusions are a recent idea.
2. Akiyoshi Kitaoka designed his optical illusion for a car advertisment.
3.There are several of Alexander McQueen’s ‘optical illusions’ dresses.
4. You can find optical illusions in the natural word.
5. In Professor Wiseman’s experiment people had to draw a brick.
6. In the experiment, the more creative people found it easier to see the duck and the rabbit.
