Aspect ratio measures the relationship between the width and height of a display, sensor, or image. A common aspect ratio is 16:9, which means it's 16 units wide and 9 units high. There are many ...

Ever watch a movie, and get distracted by the black bars at the top and bottom of the screen? Ever wonder what they are, and why they're different sizes? Wasn't the switch to "widescreen" TVs supposed ...