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"Celestial navigation" nghĩa là gì?
21 Jun, 2023
"Celestial navigation" -> nghĩa là định hướng theo vị trí các chòm sao.
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After years of debating (bàn luận) whether or not Celestial Navigation should be taught it is now time to debate the relevance (tính thích hợp) of Terrestrial Navigation. The argument is same: why do I need to know this if there is technology available to do it for me?
Sailors in the race use a tool called a sextant (kính lục phân), developed in the mid- to late-18th century, when celestial navigation became more scientifically precise. Using the instrument, sailors can measure the angle between two objects—in this case, the horizon and a celestial body like the sun, moon, or stars.
The prize was £5000 GBP and the competitors would rely on celestial navigation—there was, after all, no GPS at the time. They were required to set sail from a British port between June 1 and October 31, 1968, and return to where they started.
Nah, assures Frank Reed. The astrophysicist, cartographer (người chuyên vẽ bản đồ), app developer, and expert in celestial navigation is the owner of Reed Navigation, as well as a teacher of both modern and traditional navigational methods at Connecticut’s Mystic Seaport Museum.
Ngọc Lân
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