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:
“Beauty satisfies the senses completely and at the same time uplifts the soul. That which gratifies the senses is pleasant, and that which uplifts the soul without being sensual in the least is good, true, right, anything you like, but not beautiful.”
—Franz Grillparzer (1791–1872)
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—Leslie Dreyfous (20th century)