Tuesday, October 25, 2011
Why Bull Hate Red ?
People often reminded to be careful if adjacent to a bull if wearing a red shirt. Does red bull really make mad? In fact, the bull can not see perfectly, because of partial blindness.
What causes a bull is disturbed, because someone waving a cloth in her face. Views on the subject of color is deceptive. In the view of the human eye has a rod that is sensitive to light, but does not provide information about the color. But the bull had, and it works well in dim light or dark.
Like when seen at night, color perception become blurred because of darkness. Trunk of the human eye is equipped with three types of cone cells, each sensitive to different wavelengths of light, waves of red, green, and blue. Each color that we know, can be represented as a combination of basic colors.
When something goes wrong with the basic view of this aspect, it produces color blindness, which is usually in the form of incomplete inability to distinguish colors, rather than narrow the range of colors that can be felt. Humans have a common view of color as in fishes, reptiles, amphibians, and birds. Some animals see more colors than we can, for example bees.
Partial Blind
Color perception is the brain's response on the stimulus received by the retina. Has identified three types of cone photoreceptor cells (which needed to be able to distinguish colors) namely blue, green, and red. It takes a minimum of two cells to be able to distinguish colors, and the normal color vision is needed all three. Color blindness is usually caused by heredity. Of heredity is the most frequently found are red-green defect cells. Color blindness is associated with X-recessive gene, so lowered by the mother (not necessarily having a color blind, because the gene is recessive) to their son. In a person with partial color blindness, may have defects in red or green cone cells so it can not perceive color and its derivatives, is also difficult to distinguish.
Hating Red Bull
The cause of the bull does not like red cloth itself because it's not like the bull actually waving the cloth, not the color of the fabric itself. Bull had a disease that causes partial blindness bull can not see the color / color-blind. But because the matador had been regular since the first use of red cloth as a tool for action against the bull, so we assume a red color that makes the raging bull.
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