Bladder infections are caused by bacteria in the bladder. Escherichia coli (E. coli) is usually the bacteria that causes a bladder infection. Bladders normally have a small amount of bacteria in them and urinating helps flush out the bacteria, but sometimes the bacteria grows so fast it causes a bladder infection.
aspect ratio. n. 1. The width-to-height ratio of an image or of the area used to display an image. Most widescreen televisions have an aspect ratio of 16:9. 2. The span-to-mean-chord ratio of an airfoil. aspect ratio.
Projector aspect ratio is the width-to-height ratio of the displayed image, measured in inches. Some projectors can support multiple aspect ratios. The most common aspect ratios for projectors are 4:3, 5:4, and 16:9. That means that the chip (or panel) inside the projector is shaped in the specified 4:3, 5:4 or 16:9 proportions. The chip is like a miniature version of the image you will see on your screen.