Time Ball on Top of Flamsteed House Royal Greenwich Observatory London

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This is the world's first public time signal and is still in use today. The Red Ball rises a few minutes before 1 o'clock everyday, and at exactly 1 o'clock falls to the bottom. It may be seen from the River Thames and was designed to help mariners set their watches.

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Size: 5132px × 3421px
Location: Greenwich Royal Observatory London England UK
Photo credit: © Maurice Crooks / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ball, flamsteed, greenwich, heritage, house, maritime, observatory, public, red, royal, signal, site, time, timepiece, world