Practical Assessment of the Accuracy of the Astrolabe
Autor: | Robin Knox-Johnston |
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Rok vydání: | 2013 |
Předmět: |
History
Celestial body Mathematics::History and Overview Astrophysics::Instrumentation and Methods for Astrophysics Computer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing) Astrolabe Oceanography Geodesy Physics::History of Physics language.human_language Geography Altitude Physics::Space Physics language Portuguese Jacob's staff |
Zdroj: | The Mariner's Mirror. 99:67-71 |
ISSN: | 2049-680X 0025-3359 |
Popis: | Prior to the introduction of the cross staff by the Portuguese about 1514, the only method of taking an altitude of a celestial body at sea was by use of the astrolabe or derivatives of it like the... |
Databáze: | OpenAIRE |
Externí odkaz: |