Statements (66)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:chronograph
|
| gptkbp:academic_programs |
complicated gear system
|
| gptkbp:awarded_to |
£10,000 prize
|
| gptkbp:body_shape |
gptkb:silver
|
| gptkbp:completed |
1759
|
| gptkbp:cultural_impact |
symbol of scientific achievement
|
| gptkbp:debut |
on a voyage to Jamaica
|
| gptkbp:design |
completed in 1761
|
| gptkbp:design_influence |
influenced subsequent marine chronometer designs
|
| gptkbp:dimensions |
6.5 inches in diameter
|
| gptkbp:display_type |
analog dial
|
| gptkbp:escapement_type |
detached escapement
|
| gptkbp:exhibited_at |
gptkb:Royal_Observatory,_Greenwich
|
| gptkbp:famous_for |
solving the longitude problem
|
| gptkbp:final_cost |
£100
|
| gptkbp:first_successful_sea_trial |
1761
|
| gptkbp:funding |
received support from the Board of Longitude
|
| gptkbp:historical_context |
developed during the Age of Enlightenment
|
| gptkbp:historical_figure |
gptkb:John_Harrison_XX
|
| gptkbp:historical_significance |
revolutionized navigation
pivotal in maritime history |
| https://www.w3.org/2000/01/rdf-schema#label |
Harrison's H4 clock
|
| gptkbp:influence |
inspired future marine chronometers
|
| gptkbp:influenced |
modern GPS technology
|
| gptkbp:innovation |
the 18th century.
improved accuracy over previous designs |
| gptkbp:inspired |
future horologists
subsequent advancements in timekeeping technology |
| gptkbp:invention |
gptkb:John_Harrison_XX
1759 not patented |
| gptkbp:is_a_solution_for |
the longitude problem.
|
| gptkbp:is_a_symbol_of |
scientific achievement.
|
| gptkbp:is_a_testament_to |
human ingenuity.
|
| gptkbp:is_compared_to |
Harrison's H1 clock
|
| gptkbp:is_recognized_as |
a technological marvel
|
| gptkbp:is_recognized_by |
its innovative design.
|
| gptkbp:is_tested_for |
the ship ' Dolphin'.
HMS Deptford |
| gptkbp:is_used_in |
the British Navy.
|
| gptkbp:legacy |
considered a masterpiece of horology
|
| gptkbp:made_of |
wood and metal.
|
| gptkbp:material |
brass
mahogany |
| gptkbp:mechanical_complexity |
advanced for its time
|
| gptkbp:mechanism_of_action |
spring-driven escapement
|
| gptkbp:model |
future marine chronometers.
|
| gptkbp:notable_achievement |
first accurate marine timekeeper
|
| gptkbp:notable_feature |
temperature compensation mechanism
|
| gptkbp:notable_technology |
chronometry.
|
| gptkbp:notable_traits |
high precision
|
| gptkbp:performance |
within 5 seconds per day
future timekeeping devices. |
| gptkbp:power_source |
mainspring
|
| gptkbp:purpose |
determining longitude at sea
|
| gptkbp:recognized_by |
gptkb:British_government
|
| gptkbp:reign |
its accuracy.
|
| gptkbp:resting_place |
gptkb:National_Maritime_Museum,_Greenwich
|
| gptkbp:significance |
solved the problem of longitude
|
| gptkbp:steering |
key-wound
|
| gptkbp:successor |
Harrison's H5 clock
|
| gptkbp:timekeeping_method |
mechanical timekeeping
|
| gptkbp:used_by |
gptkb:British_Royal_Navy
|
| gptkbp:used_in |
navigation at sea
|
| gptkbp:was_a_factor_in |
the success of maritime expeditions.
|
| gptkbp:weight |
approximately 1.5 kg
|