The impressive portable sundial, dating to 250-350 AD and measuring hours and latitudes, is on display at the Philippi archaeological museum
A special exhibit awaits visitors at the Philippi archaeological museum: an impressive portable sundial, dating to 250-350 AD and measuring times and latitudes
This unique watch of its kind is kept on the first floor, in a special display case and has been presented in major exhibitions abroad.
The ancient portable sundial can measure the hours, be used for approximate latitude measurements, determine the azimuth and altitude of the sun or some other star.
How does it work
It is based on the achievements of the Hellenistic tradition which the Byzantines cultivated under the influence of the Christian worldview but also interactions from the world of Islam.
As the YPPO states in its post, “the portable sundial consists of three independent but touching flattened rings, which rotate 360 ​​degrees independently of each other, giving the instrument the shape of a spherical astrolabe.
On the outer curved side of the middle ring, the names and latitudes of the cities are engraved two on each semi-ring: ROMECH MAG UENN(HC) ME–ALEXAN(DREAC) MLA- RHODOS MLS.
On both sides of the thickness of the surface are engraved the names of the months in such a way that they correspond to each city on one side, the months from January to June and on the other from July to December.
In the inner ring and on the outer curved surface, a depression is formed in the middle of which the optometric hole is opened.
The inner curved side is divided by engravings into 12 sections.
Source: Skai
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