Because the coat of arms and logo can appear in a variety of conditions. May have been created with the concept matures. But sometimes created accidentally. Meaning any variety.
What does the logo then categorized into the world famous logo:
In 1962, McDonald's senior psychologist hired Louis Cheskin. He suggested to replace Cook with the Speedee logo golden arches that form m. form his opinion like that resembles a woman's breasts, which unconsciously arouses the appetite and will remind people of her childhood are happy. It should be noted, Cheskin did not create the arch itself, and the logo is already there in the restaurant since the 1950s.
Pepsi logo looks simple, but the price is much more expensive than you can imagine, i.e. US $1 million. erancang expanding it to fit the most perfect proportions in math which is considered the most harmonious and pleasant for the human eye.
Many who thought the Ferrari logo symbolizes the horsepower, but it's not true. In his biography, mentioning that the silhouette of the Enzo Ferrari horse was originally painted on the aircraft pilot seasoned Italy Francesco Baracca. The arms were granted to mother by Enzo Francesco after his son's victory in a race. Since then the horse jingrak became a symbol of the world famous.
Rumor has it that the BMW logo symbolize the propeller aircraft, and even some employees of the company supports this opinion. However, they are actually less precise. The BMW logo is blue and white were chosen to represent the colours of the flag of Bavaria, one of the federal State in Germany.