the astrolabe

GPTKB entity

Statements (53)
Predicate Object
gptkbp:instance_of gptkb:navigation_system
gptkbp:allows_to_calculate latitude
gptkbp:allows_to_determine time of day
gptkbp:allows_to_measure altitude of celestial bodies
gptkbp:composed_of a disk
a base
an arm
gptkbp:developed_by gptkb:ancient_Greece
gptkbp:educational_use gptkb:astronomy
history of science
gptkbp:example gptkb:Maya_civilization
gptkbp:has_historical_significance in navigation history
gptkbp:has_influenced modern navigation tools
gptkbp:has_part gptkb:tachymetric_scale
alidade
sight ring
https://www.w3.org/2000/01/rdf-schema#label the astrolabe
gptkbp:influenced_by gptkb:Persian_literature
gptkbp:invention gptkb:Hipparchus
gptkbp:is_a_tool_for historical research
educational demonstrations
astronomical studies
navigation history
gptkbp:is_analyzed_in the position of stars
the position of the moon
the position of the sun
the position of planets
gptkbp:is_associated_with gptkb:Al-Battani
gptkb:Al-Fazari
gptkb:Ptolemy
gptkbp:is_considered_as a cultural artifact
a symbol of scientific advancement
a precursor to the compass
one of the oldest scientific instruments
gptkbp:is_often_seen_in gptkb:museums
gptkbp:is_popular_in the Middle Ages
gptkbp:is_related_to timekeeping
celestial navigation
spherical geometry
gptkbp:is_used_by medieval scholars
gptkbp:is_used_in astrological calculations
navigation at sea
some educational contexts
gptkbp:made_of gptkb:plastic
gptkb:wood
brass
gptkbp:originated_in modern sextant
gptkbp:used_by gptkb:naval_warfare
gptkb:astronomy
gptkbp:used_for gptkb:astronomy
gptkb:navigation
gptkbp:bfsParent gptkb:Al-Biruni
gptkbp:bfsLayer 6