One O'Clock Gun

Personalities behind The One o'clock Gun

Professor Charles Piazzi Smyth, Astronomer Royal for Scotland

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Professor Charles Piazzi Smyth not only set up the Nelson Monument time ball, he also worked out the details for the One o'clock Gun time service. The Astronomer Royal for Scotland was assisted by his wife Jessie who was an amateur geologist. Photograph courtesy of the Royal Society of Edinburgh.
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Piazzi Smyth's house at 1 Hillside Crescent. The couple moved to 15 Royal Terrace in 1870. Photograph John Thomson

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