Lupin wrote:But even then you have several other bars in the picture telling you it's a signal strenth meter, and not a representation of buildings.Figarou wrote:Yes, they are the same height. But not when you look at them in a certain angle.
That's because it's subliminal. It has been deliberately hidden in the image, so it wouldn't be seen. Most people only look at billboards for a second or two, so they wouldn't notice the resemblance with their conscious mind.
Your subconscious mind, however, will easily notice the resemblance (nothing gets past the subconscious). A red flag goes up in your subconscious mind, saying, "Hey! That's the twin towers!", and thus you remember the brand. Advertisers have been using this trick for ages. The twin towers are a good image to choose because it's a powerful image, one that many Americans feel strongly about.
Other commonly used images are those of dead bodies, skulls, and the female body. The coke machine at my high school had the following subliminal images, hidden in the ice on the front of the machine:
-a guy doing a cannonball
-a naked woman lying sideways on top of the can
-a naked girl with massive boobs, but no arms or legs
They also frequently hide words in images. Commonly use are: sex, die, f***, etc.
They usually choose things that most people would find offensive, or would object to, in order to get you to remember their brand. They also sometimes use images that have something wrong with them, to set off a red flag in your mind. Adding extra limbs or placing shadows wrong is something they do fairly often.