What is the purpose of red research?

The purpose of Dream of Red Mansions is to learn the revolutionary history of China, take tourism as the theme, create a self-inspired educational atmosphere, and achieve the goal of "learning from middle school, learning from middle school", teaching in travel and moistening things silently. The significance of red research.

Red can be mixed with blue into purple, red can be mixed with yellow into orange, and red and green are contrasting colors (complementary colors). The complementary color of red is blue. Red is one of the three primary colors. You can mix yellow, blue and tricolor. Red is the color at the end of the long wave in the visible spectrum, which excites the observer through energy. The wavelength is about 630 to 750 nanometers, which is similar to the color of fresh blood. It is one of the three primary colors and also a psychological primary color. Ordinary people can't see the rays with longer wavelength than red, which are generally called infrared rays.