There's no way around it: Celestial navigation using a sextant is a complex and involved process that involves a fair amount of calculating, correcting, referring to tables, knowledge of the ...

The angle between the two objects is then read off the scale. What makes a sextant so useful in navigation is its accuracy. It can measure an angle with precision to the nearest ten seconds.

The Airbus A330 that I fly across the Atlantic to any of several European cities is equipped with onboard navigation computers ... vintage Pioneer-Bendix bubble sextant, which I use—just for ...

Discover some of the incredible tools, from astrolabes to sextants, that ancient sailors ... to architecture to farming and, ...