The Spinning Silhouette - Optical Illusion

That's interesting. But isn't true that right part of the body is easier to control? Why left-handed people are just a few compared to right-handed if brain has sections for each function in both sides?

Handedness acually has nothing to do with a "prominent" side of the brain. Both sides of the brain must work together to perform functions such as math problems or interpreting a poem. There is some evidence to suggest that handedness is genetic, with left handedness being a somewhat recessive gene because it is so rare. There is only a small percentage of the population that is left-handed. By examining the commonly-held belief that a person's handedness suggests a side of the brain that is more prominently used, this would suggest that only a small portion of the population uses primarily the right side of the brain (the common theory is that whatever hand a person uses, it is connected to the opposite side of their brain). This is just a ridiculous notion because that would mean that the larger percentage of the population uses the left side of their brain primarily. It just isn't so. Both sides of the brain are required to play music, draw, cook a meal, or read a book. Success in activities such as these relies on how well and how quickly both sides of the brain communicate together to perform functions like these.

Ok, thanks for you explanation. It was really interesting ;) So, this is the second false assumption about brain I'm hearing about... the first one was that we could all be geniuses because a "normal person" uses only the 10% of his brain... hehe :D