2012
ST7719 : Sundial, Dial House
taken 12 years ago, near to Marnhull, Dorset, England
Sundial, Dial House
The sundial is set into the wall of Dial House. For a wider view of the house
ST7719 : Dial House, Marnhull
Sundials or sun clocks are considered to be the oldest known device for the measurement of time and one of the most ancient scientific instruments.
The oldest known true sundial was built around 1500BC in Egypt. Shaped like a letter 'L' the length of the shadow cast by the vertical leg along the horizontal leg indicated the time. The Romans perfected the horizontal sundial we know today and invented portable travelling versions.
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