Another cool optical illusion
If you liked the right brain/left brain optical illusion I shared with readers last month, then you'll enjoy this one from the Brain Waves blog: "A Scary Illusion: Mr. Angry and Ms. Calm" which depicts two faces which switch positions with each other, depending upon how close you are to your computer screen as you're viewing them.
A reminder that things always look different depending on how we're looking at them.
(Thanks to Stephanie West Allen for the tip.)