A time ball is a now obsolete time signalling device. It consists of a large, painted wooden or metal ball that is dropped at a predetermined time, principally to enable navigators to verify their marine chronometers from their ships offshore. Accurate timekeeping is one means by which longitude can be determined at sea.
Read more about Time Ball: History, Time Balls Around The World
Famous quotes containing the words time and/or ball:
“The last time I saw Paris
Her heart was warm and gay.”
—Oscar Hammerstein II (1895–1960)
“[Children] need time to stare at a wall, daydream over a picture book, make mud pies, kick a ball around, whistle a tune or play the kazoo—to do the things today’s adults had time to do when they were growing up.”
—Leslie Dreyfous (20th century)