Best Spent Money Ever ...

Paper calculator ... I loved this idea at first . Watching this little video I said to myself "nice idea" but I wasn't going to write anything about it . The thing that made me change my mind was how some people reacted to this movie . I could not believe my eyes what some of them commented on youtube ... I was amazed , I had no words and most of all I could not stop laughing . How can someone be dumb enough to believe that something like this actually works ? A guy tried to make a paper calculator at home and he was complaining that it doesn't work like in the video ... well at least that's what he wrote , but I refuse to believe that a normal human been could think that way . I simply refuse ! Enjoy ...