Linked from

The 18 pages that link to John Harrison, each with the reason it gives.

• James CookRelated: Chronometric navigation strengthened the precision of the charts made on Cook’s later voyages.

• LongitudeRelated: His sea clocks made precise time-based longitude measurement practical.

• Marine chronometerRelated: His instruments demonstrated that portable clocks could retain useful time at sea.

• Nautical chartRelated: Improved longitude measurement strengthened the positional basis of maritime mapping.

• Mechanical clockRelated: His work extended mechanical timekeeping from towers and homes to ocean navigation.

• SundialRelated: His accurate clocks helped distinguish uniform clock time from time shown by the Sun.

• Marine navigationRelated: His chronometers helped make reliable oceanic longitude measurement practical.

• EscapementRelated: His grasshopper escapement sought accurate timekeeping with minimal friction.

• ClockRelated: Harrison's precision timekeepers showed how portable clocks could solve navigation problems.

• WatchmakingRelated: His precision timekeepers show watchmaking's role in navigation.

• GimbalRelated: Marine instruments and timekeepers relied on mounting solutions that remained steady aboard moving ships.

• StopwatchRelated: His portable precision timekeepers advanced the engineering behind accurate portable timing.

• Frank HerbertRelated: His miniseries offered a major screen adaptation after earlier projects struggled.

• History of timekeeping devicesRelated: His eighteenth-century work linked precision clocks to navigation across oceans.

• ChronometryRelated: Harrison’s work demonstrated the practical value of precise portable timekeeping.

• Pocket watchRelated: His work illustrates the period’s broader pursuit of reliable portable timekeeping.