Sundial
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Sundial
3D
Published 2017-09-25T15:54:14+00:00
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Descripción
Found in the Theatre of Dionysos, Athens. Sundial were instruments for measuring time during the day. The concave surface (part of a cone) of the dial is divided by 11 engraved lines into 12 sections that correspond with the hours of the day (from sunrise to sunset). The horizontal line at the bottom of the dial marked the summer solstice, the line halfway up the dial the equinoxes, and the line at the top of the clock held a metal rod-pointer that cast the sun's shadow on the dial. The position of the shadow varied with that of the sun and thus indicated the hour of the day.
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Información técnica
| Date published | 25/09/2017 |
Más información
| Titulo | Sundial |
| Periodo | Probably Roman period |
| Medio | Marble |
| Artista | Unknown artist |
| Lugar | National Archaeological Museum of Athens |
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