In the ruthless seconds of a dogfight, it could be survival that hangs on a number that rarely makes it into a Hollywood film: the thrust-to-weight ratio. This seemingly harmless figure the ratio of ...

CLEVELAND — When you hear that a winter storm dropped several inches of snow, you might not realize that it’s not always as simple as "one inch of snow equals one inch of water." In fact, the ratio of ...

John Hess traces the evolution of the screen shape from the silent film days through the widescreen explosion of the 50s, to the aspect ratio of modern digital cameras. This lesson is part of the ...