Knowledge box is an old slang term for noggin; one 1755 describes someone who “almost cracked his knowledge box.” This is part of a complete episode. Transcript of “Knowledge Box” Grant, do you know what a knowledge box is? Your noggin? How did you...
center of gravity n.— «The bread basket, an area of 45 square miles in northeastern Iraq, had been one of Al Qaeda in Iraq’s few remaining “centers of gravity,” as U.S. military commanders termed it—a place the group had fled to once it was forced...
