Studies on the effectiveness of cranberry juice for preventing or treating UTIs have produced mixed results. The red berry contains a tannin that prevents E. coli bacteria - the most common cause of urinary tract infections - from sticking to the walls of the bladder, where they can cause infection.
primary color for pigments - any of three pigments from which all colors can be obtained by mixing; the primary colors for pigments are red, blue, and yellow. primary colour for pigments. primary color, primary colour - any of three colors from which all others can be obtained by mixing.
Yellow is NOT a primary color of light! When I was in first grade I was presented with a distressing problem for a 6 year old. My father, a television technician, had taught me that the primary colors are Red, Green and Blue. My teacher insisted that it was Red, Yellow and Blue. A few years later as my reading level increased I hit upon the answer - both are right depending on what you are talking about. Red, Yellow and Blue are the primary colors of pigment. But Red, Green and Blue are the primary colors of light. If you are coming to web page design from a print background this distinction is very important to learn because color codes on the web mix light, not paint. In CSS you've no doubt ran across color codes.