Harrison's H4 chronometer

GPTKB entity

Statements (52)
Predicate Object
gptkbp:instance_of gptkb:chronograph
gptkbp:academic_programs complex gear system
gptkbp:advances represents a major advancement in timekeeping technology
gptkbp:associated_with John Harrison's legacy
gptkbp:competed_in other timekeeping devices
gptkbp:contribution contributed to the field of timekeeping
gptkbp:craftsmanship exemplifies high-quality craftsmanship
gptkbp:cultural_significance symbol of scientific achievement
gptkbp:design_influence influenced subsequent marine chronometer designs
gptkbp:educational_value taught in history of science courses
gptkbp:exhibited_at gptkb:Royal_Observatory,_Greenwich
gptkbp:exhibition_history displayed in museums worldwide
gptkbp:famous_for its role in solving the longitude problem
gptkbp:featured_in books about navigation and timekeeping.
gptkbp:first_successful_chronometer for long sea voyages
gptkbp:historical_achievement recognized as a significant invention in history
gptkbp:historical_context developed during the Age of Exploration
gptkbp:historical_impact significant in navigation history
gptkbp:historical_significance important in the history of navigation
https://www.w3.org/2000/01/rdf-schema#label Harrison's H4 chronometer
gptkbp:impact influenced the development of navigation science
inspired further research in horology
gptkbp:influenced_by previous designs of marine chronometers
gptkbp:influenced_navigation improved maritime navigation techniques
gptkbp:innovation introduced new timekeeping technologies
gptkbp:inspired future developments in timekeeping technology
gptkbp:invention gptkb:John_Harrison_XX
1759
gptkbp:is_celebrated_in various historical accounts and documentaries
gptkbp:is_tested_for gptkb:Board_of_Longitude
gptkbp:legacy paved the way for modern chronometers
gptkbp:material brass
gptkbp:mechanical_precision highly precise mechanical engineering
gptkbp:mechanism_of_action spring-driven escapement
gptkbp:notable_achievements achieved great accuracy for its time
gptkbp:notable_feature temperature compensation
gptkbp:notable_users used by famous explorers
gptkbp:patent_granted 1760
gptkbp:performance within one second per day
gptkbp:recognition widely recognized as a breakthrough in horology
gptkbp:recognized_by gptkb:scientific_community
gptkbp:replaced_by more advanced chronometers
gptkbp:setting_time accurate timekeeping at sea
gptkbp:significance solved the problem of the longitude at sea
gptkbp:size 5.5 inches in diameter
gptkbp:successor Harrison's H5 chronometer
gptkbp:used_by navigators and explorers
gptkbp:used_for determining longitude at sea
gptkbp:used_in maritime expeditions
gptkbp:weight approximately 1.5 kg
gptkbp:bfsParent gptkb:Harrison's_clocks
gptkbp:bfsLayer 5