Red is the most common and common color on the earth. There are many things that have this color, such as the blood flowing in our bodies and fruits such as apples, strawberries, cherries, etc. It is also widely used in a large number of artificial products. The visual effect of red is also very good, and its symbolic meaning is also very positive.
Suddenly changing the subject and talking about color blindness. Color blindness is a congenital color vision disorder. Generally speaking, those who can distinguish the three primary colors of red, green and blue are normal people. Because any color within the visible spectrum can be composed of three primary colors. However, it is impossible to accurately distinguish the severity of color blindness based on the number and degree of these three colors. Generally speaking, color blindness is caused by congenital inheritance from parents. If it is not serious, the world will be colorful in the eyes of color blind people, and color blind people also have advantages. Their vision is stronger when the light is weak. During World War II, a large number of color blind people were recruited by the Allied Forces. Because the color-blind person has a very strong ability to distinguish the lightness and darkness of colors, the color-blind person can see the difference between the protective color worn by the enemy and the color lightness of the surrounding environment, so that the enemy's location can be pointed out. This is why the color-blind person can distinguish the traffic lights. In addition, people with color blindness are more careful than those with normal color vision and can see subtle differences in things.
Okay, please be patient. The above introduction to color blindness and the color red is of course very important to this novel. You will know it as you read on.