The oldest known astrolabe was used on one of Vasco da Gama’s ships
A navigational device for taking altitudes at sea was found in a Portuguese shipwreck in the Arabian Sea and dates back...
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Earliest known Mariner's Astrolabe research published today to go in Guinness Book of Records
(University of Warwick) Guinness World Records have independently certified an astrolabe excavated from the wreck site o...
