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gptkbp:instance_of
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gptkb:chronograph
|
|
gptkbp:academic_programs
|
spring-driven escapement
|
|
gptkbp:associated_with
|
longitude prize
|
|
gptkbp:competed_in
|
lunar distance method
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gptkbp:contributed_to
|
scientific understanding of time
|
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gptkbp:design
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gptkb:Harrison's_H4_chronometer
|
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gptkbp:exhibited_at
|
gptkb:Royal_Observatory,_Greenwich
|
|
gptkbp:famous_for
|
Harrison's timekeeping accuracy
Harrison's timekeeping innovations
|
|
gptkbp:field
|
horology
|
|
gptkbp:first_successful_model
|
H4
|
|
gptkbp:first_successful_sea_trial
|
1761
|
|
gptkbp:funding
|
gptkb:Board_of_Longitude
|
|
gptkbp:historical_context
|
Age of Enlightenment
|
|
gptkbp:historical_figure
|
gptkb:John_Harrison_XX
|
|
gptkbp:historical_impact
|
advancement of timekeeping technology
|
|
gptkbp:historical_period
|
gptkb:18th_century
|
|
gptkbp:historical_significance
|
revolutionized maritime navigation
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Harrison's clocks
|
|
gptkbp:influence
|
gptkb:navigation
|
|
gptkbp:influenced
|
global trade routes
timekeeping standards
modern GPS technology
|
|
gptkbp:innovation
|
use of bimetallic strips
|
|
gptkbp:inspired
|
future chronometer designs
future navigational tools
|
|
gptkbp:invention
|
gptkb:Harrison's_H1
gptkb:Harrison's_H2
gptkb:Harrison's_H3
gptkb:John_Harrison_XX
gptkb:Harrison's_H4
1735
British patent system
|
|
gptkbp:involved_technology
|
chronometry
|
|
gptkbp:is_used_in
|
navigators.
|
|
gptkbp:latest_version
|
H4
|
|
gptkbp:legacy
|
John Harrison's contributions to science
|
|
gptkbp:made_of
|
brass
|
|
gptkbp:material
|
brass
|
|
gptkbp:mechanism_of_action
|
gptkb:Pendulum
|
|
gptkbp:notable_achievement
|
accurate timekeeping at sea
reduced navigational errors
|
|
gptkbp:notable_aspect
|
lightweight construction
weather resistance
user-friendly design
historical craftsmanship
mechanical artistry
mechanical reliability
historical innovation
ease of transport
durability at sea
|
|
gptkbp:notable_contributor
|
improved maritime safety
|
|
gptkbp:notable_event
|
Harrison's trials for the longitude prize
|
|
gptkbp:notable_feature
|
high precision
temperature compensation
self-winding mechanism
|
|
gptkbp:notable_influence
|
advancement of navigation technology
|
|
gptkbp:notable_traits
|
robust design
|
|
gptkbp:notable_users
|
gptkb:Captain_James_Cook
|
|
gptkbp:performance
|
within one second per day
|
|
gptkbp:purpose
|
determine longitude at sea
|
|
gptkbp:recognized_by
|
gptkb:British_government
gptkb:Royal_Society
|
|
gptkbp:related_concept
|
longitude determination
|
|
gptkbp:resting_place
|
gptkb:Westminster_Abbey
|
|
gptkbp:significance
|
solved the problem of longitude
|
|
gptkbp:used_by
|
gptkb:naval_warfare
|
|
gptkbp:used_in
|
naval expeditions
exploration voyages
|
|
gptkbp:were_accurate_to
|
within one second per day
|
|
gptkbp:were_tested_by
|
gptkb:British_Admiralty
|
|
gptkbp:bfsParent
|
gptkb:John_Harrison_XX
|
|
gptkbp:bfsLayer
|
4
|