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« 04-2005 » |
Time Ball Tower - Posted on 23 January 2006 From the Plaque on the tower This time ball tower was erected in 1875 to enable ships at the anchorage and the inner harbor to rate their chronometers. The black ball was hoisted to the masthead at 12:57pm daily and dropped at 1:00pm by electric release from the Adelaide observatory. With the advent of wireless time signals the service was discontinued in 1932. |
Olympus E-300 1/100 sec at 100 ISO f 7.1 / 14 mm |