You must be asking yourself what kind of thing am I going to tell on this page. Well it's just something I saw on an other website that I found really amazing and that I wanted to share with you. Just have a look on the picture below. You surely are convinced that it represents the famous Leonardo Da Vinci's portrait known as Mona Lisa. The only difference might be that it is upside down. But just hover your mouse on the picture to make it turn over and you'll see what happens...
Amazing isn't it ? if you don't believe it, you can twist your computer screen or print the page, but I promise you there isn't any trick.
So what's the reason of such an optical illusion ? It's simply that our brain is able to recognize faces when they are on the right way, but if they are upside down, it can't recognize it and something that appears to be obvious to notice isn't at all when the picture is upside down !
When I first saw this trick, I just couldn't believe it. I'm one of those who twisted his computer screen to look for a trick, but when I realised that there wasn't any, I was just astonished. Even when you know the trick, you can't see that the picture isn't Mona Lisa upside down. That's why I decided to show it to you.
