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Set on a stone column or fasted to a wall, the basic sundial is formed from a triangular metal piece (Gnomon), set at right-angles to a base plate (Dial Plate). Sundials are usually made from brass or bronze, both metals resistant to corrosion and weathering. The Sun shinning across the Gnomon casts a shadow over the Dial Plate, showing the time of the day.

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12y ago

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