Marine archaeologists say the object is an astrolabe, an instrument once used by mariners to measure the altitude of the Sun during their voyages. It is believed to date from between 1495 and 1500.

Over 2,000 years ago, one or more such scientific thinkers invented the Astrolabe, a calculator that was capable of solving ...

The astrolabe became the indispensable attribute for astronomers, astrologers, doctors, geographers, or indeed anyone with intellectual aspirations - even a ten-year-old English boy like Chaucer's ...

Astrolabe Ascended Card Major Play this card to seek a Realm of moderate danger, populated by the Calcularia and the ruins of humanity's Realmic airfields. Astrolabe Realms gave rise to the theory ...

And watching someone recreate the feat, such as by building an astrolabe by hand, can be very appealing too. The astrolabe is an ancient astronomical tool of incredible versatility, allowing the ...