Sundial
Museo della Civiltà Contadina del Friuli
Imperiale (Sundials courtyard)
Photo n° 3 |
The hemispheric solar
clock remained in use for more than a millenium until the fall
of the Roman Empire.
The time indicated (“Ora Temporaria”,
called “ancient”) corresponds to the twelfth part of the diurnal
arch, which begins at dawn.
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