ALTHOUGH the astrolabe has found some support among surveyors, it has not been widely used by British astronomers. An extensive account in English of the practical use of the modern astrolabe has ...

THESE pictures are of the plate of a mariner’s astrolabe, the earliest known, which was raised in 2014 from a wreck off the coast of Oman. The complete instrument would also have had a rotating ...

WHEN FRANCIS DRAKE rounded the globe in 1577-80, he took an astrolabe, compass and cross-staff with him. As Ferdinand Magellan, the first known circumnavigator, started out in 1519, he had at ...

The Persian Astrolabe is a historical astronomical instrument ... It was the chief navigational instrument until the invention of the compass and sextant. Its many uses included locating and ...

As Gigante began to study the astrolabe – a scientific tool which dates from 11th century Spain and is used to chart stars and other heavenly bodies – she found Arabic and Hebrew inscriptions ...

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.

the atlas replicated the astrolabe's geographical pinpointing, and the compass was a portable navigator, for example. It's a crying shame that the astrolabe fell so far out of the larger ...

A truth-telling, golden compass. Although the 14th-century astrolabe of Prague, whose image she saw on my phone, is not what she is hoping for. It holds up an enduring truth. It allows many ways ...

Philip Ball tells the story of Chaucer's Astrolabe, the medieval equivalent of GPS, and how England's most renowned poet came to write the world's first scientific manual. Show more Philip Ball ...

Shah's father had purchased this astrolabe 40 years ago from a utensils ... "It was the chief navigational instrument until the invention of the compass and sextant. In those days, it was used ...