This is a very important science test, start timer,ONLY THEN click on spoiler, study image and read it all over again and stop timer only when you complety stop laughing, and you can again see clearly, ays cleared of tears.
What is your time?
Mine was 03:45
One with best explanation how he/she laugh (example: i laugh so hard my wife had to hit me with frypan to stop me ) will get 100 M and invisible forum title!