The time ball at the top of the tower at the front of the Observatory was the reason for the establishment of the Observatory and so is of great significance.It is still in its original condition apart from the addition of an electrical motor and some improvements made by HC Russell in the 1870s.
Before radio the only way to convey accurate time was through a visual signal. Accurate time was especially important to ships setting out on a long voyage as they needed to adjust and calibrate their ...
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