Published on July 9, 2017
Tim received this optical illusion greeting card in 1999. It was a Christmas card from a friend who is a designer, and the designer had created this inverted perspective card, showing his family inside a vehicle. Maybe off on holiday?
The card is constructed inside out, so when you look at the vehicle, it is actually hollow, rather than being a three dimensional object. And when you tilt it to and fro, the vehicle appears to move in the opposite direction from the direction you are turning it!
