circular brass instrument that looks a bit like a large brass pocket watch, and it's called an astrolabe. With an astrolabe in my hands, I can tell the time, do a bit of surveying, work out my ...

[Uri] has another video that goes over astrolabe basics and his design process that’s well worth watching too. While it’s nowhere near as complicated an instrument, this astrolabe puts us in ...

Thin engraved discs or paper could also be used between the sky disc and the astrolabe body. The instrument and its components measure time and distance by using the shadow cast by the alidade ...

The identification of an eleventh-century Islamic astrolabe bearing both Arabic ... The astronomical instrument ... Dr. Federica Gigante, from Cambridge University's History Faculty, made the ...

circular brass instrument that looks a bit like a large brass pocket watch, and it's called an astrolabe. With an astrolabe in my hands, I can tell the time, do a bit of surveying, work out my ...