You all probably know about subliminal advertising. For those who don't know about it, it is technique of inserting message, or picture, in commercials. Now, every second of video contains 24-29.97 frames depending of video format (PAL, NTSC). So, basically you can easily insert one frame between those bunch of frames with your message (those who saw "Fight club" movie will know about that ). So, when you are having commercial of e.g 1 minute, you can have 1440-1798.2 frames and about 60 frames of your desired message. Since eye usually cannot detect those frames you don't even see them, but since human brain works much faster than eye, those images are recorded "somewhere" in your brain, supposedly making you think about that message. (more…)