Royal Observatory Greenwich, with it s time ball raised & about to drop to signal 1PM.
The time ball is a large painted ball that drops at a predetermined time, principally to enable sailors to check their marine chronometers from their boats offshore. Accurate timekeeping is one way of enabling mariners to determine their longitude at sea.
Size: 5950px × 4118px
Location: The Royal Observatory, Greenwich Royal Park, London, SE10, England, UK.
Photo credit: © Tony Watson / Alamy / Afripics
License: Licensed
Model Released: No
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