One of the mysteries of the English language finally explained.
The process of calculating one's position, especially at sea, by estimating the direction and distance travelled rather than by using landmarks or astronomical observations.
- ‘Sometimes he takes one route, and sometimes another, just as his fancy inclines him, he pays no attention to the compass, but sails by dead reckoning of his own devising.’
- ‘Even if you choose to find your way by dead reckoning, the rear-view mirror has a little LED display to tell you which point of the compass you are heading towards.’
- ‘I decided to refigure all my dead reckoning and try to at least get some general idea of where I should be.’
- ‘Steady course and speed or continuous monitoring of their changes is required for effective dead reckoning.’
- ‘In dead reckoning you estimate distance traveled along a given heading as a function of velocity and elapsed time.’
- ‘Due to this appalling weather the convoy had to rely on dead reckoning for navigation.’
- ‘When human mariners and lunar astronauts navigated by dead reckoning they used charts, tables, various measuring instruments, and a considerable amount of mathematics.’
- ‘Considering the weather conditions, dead reckoning or entering accurate data on the GPS was not a possibility.’
- ‘I had been going by dead reckoning, traveling up the incline, letting the slope of the incline guide me.’
- ‘There is no corresponding southern pole star, so dead reckoning became the primary navigating process.’
- ‘The pure navigational techniques of celestial and dead reckoning should have been superseded at this time by pilotage.’
- ‘We fitted the trucks with air wheels - balloon tires, we would say now - and kept going, navigating like mariners, by sextant and compass and dead reckoning.’
- ‘It was the Greeks who pioneered modern methods of navigating by calculation rather than by dead reckoning.’
- ‘Back in 1927, Lindbergh proved that a combination of dead reckoning and pilotage can work well, even over a 3,610-mile, 331 2-hour flight.’
- ‘For centuries, the only way to navigate was to look at the position of the sun and stars and use dead reckoning.’
- ‘After I crossed the first two rivers my dead reckoning told me it was time to take the turn south, but the high mountain checkpoint was not in sight.’
- ‘Christopher Columbus used dead reckoning for his voyages across the Atlantic Ocean.’
- ‘At first, crews had to rely on dead reckoning - estimating position by speed, flying time and compass.’
- ‘They had been in clouds since the beginning, navigating only by dead reckoning.’
- ‘Since medieval times, mariners have employed dead reckoning to navigate their vessels.’
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