• Facets (new session)
• Description
• Metadata
• Settings
  • Rule: ActivityStreamsMapasEquivalentb3sb3sifpdbprdf-labelfacetshttp://dbpedia.org/resource/inference/rules/dbpedia#http://dbpedia.org/resource/inference/rules/opencyc#http://dbpedia.org/resource/inference/rules/umbel#http://dbpedia.org/resource/inference/rules/yago#http://dbpedia.org/schema/property_rules#http://www.ontologyportal.org/inference/rules/SUMO#http://www.ontologyportal.org/inference/rules/WordNet#http://www.w3.org/2002/07/owl#ldpoplwebskos-transurn:det:rdf:labelvirtrdf-labelvirtrdf-urlNone
    
  • Inverse Functional Properties: Disabled (fastest) Apply to subjects only Apply to objects only Apply to both subjects and objects
  • "Same As": Disabled (fastest) Apply to subjects only Apply to objects only Apply to both subjects and objects (recommended) Apply to subjects, objects and predicates (not recommended on big datasets) Apply to predicates only (special use cases only)

About: John Serson     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatEnglishInventors, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: Thingfoaf:Personpersondul:NaturalPersonEukaryotePersonHumanAnimalanimaleukaryotespeciesschema:Personyago:CausalAgent100007347yago:Creator109614315yago:Inventor110214637yago:LivingThing100004258yago:Object100002684yago:Organism100004475yago:Person100007846yago:PhysicalEntity100001930yago:YagoLegalActoryago:YagoLegalActorGeoyago:Whole100003553yago:WikicatEnglishInventors New Facet based on Instances of this Class

John Serson (died 1744) was an English sea captain best known for his invention of a "". This was an early form of artificial horizon designed for marine navigation, consisting of a mirror, attached to a spinning top, that attempted to remain in a horizontal plane despite the movement of the ship. This device can be seen as a precursor to the gyroscope used in modern inertial navigation, although it was not itself a gyroscope. Serson was lost at sea on HMS Victory in 1744.