| Autor: |
George H. Kaplan, John A. Bangert, Steven A. Bell |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
The History of Celestial Navigation ISBN: 9783030436308 |
| DOI: |
10.1007/978-3-030-43631-5_9 |
| Popis: |
Revolutionary and rapid advances in computing hardware and software beginning in the 1970s not only had a profound impact on how the traditional, printed almanacs were produced and distributed, but also on the basic concept of what constitutes an almanac. The wide availability of affordable personal computers and widespread access to the World Wide Web led to Her Majesty’s Nautical Almanac Office (HMNAO) and the US Naval Observatory (USNO) providing these data in new forms. In addition ground-based radio navigation methods were replacing celestial navigation and eventually the Global Positioning System (GPS) led to significant reductions in the training for and use of celestial navigation. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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