Science Quiz


SOURCE : SCIENCE CENTRE SINGAPORE

Q Does this face look normal? (Hint: Look at it from all directions.)

A The man's eyes and the mouth are inverted. Our brains have become specialised for processing only upright faces because of our experiences of looking at one another.

A version of this article appeared in the print edition of The Straits Times on August 21, 2015, with the headline 'ScienceQuiz'. Print Edition | Subscribe