About: Mark Barr

An Entity of Type: person, from Named Graph: http://dbpedia.org, within Data Space: dbpedia.org

James Mark McGinnis Barr (May 18, 1871 – December 15, 1950) was an electrical engineer, physicist, inventor, and polymath known for proposing the standard notation for the golden ratio. Born in America, but with English citizenship, Barr lived in both London and New York City at different times of his life. Though remembered primarily for his contributions to abstract mathematics, Barr put much of his efforts over the years into the design of machines, including calculating machines. He won a gold medal at the 1900 Paris Exposition Universelle for an extremely accurate engraving machine.

thumbnail
Property Value
dbo:abstract
  • مارك بار (بالإنجليزية: James Mark McGinnis Barr)‏ هو مخترِع ورياضياتي أمريكي، ولد في 18 مايو 1871، وتوفي في 15 ديسمبر 1950. (ar)
  • James Mark McGinnis Barr (May 18, 1871 – December 15, 1950) was an electrical engineer, physicist, inventor, and polymath known for proposing the standard notation for the golden ratio. Born in America, but with English citizenship, Barr lived in both London and New York City at different times of his life. Though remembered primarily for his contributions to abstract mathematics, Barr put much of his efforts over the years into the design of machines, including calculating machines. He won a gold medal at the 1900 Paris Exposition Universelle for an extremely accurate engraving machine. (en)
dbo:thumbnail
dbo:wikiPageExternalLink
dbo:wikiPageID
  • 7023290 (xsd:integer)
dbo:wikiPageLength
  • 17153 (xsd:nonNegativeInteger)
dbo:wikiPageRevisionID
  • 1122157959 (xsd:integer)
dbo:wikiPageWikiLink
dbp:reference
  • Reprinted: (en)
dbp:tag
  • B29 (en)
  • B30 (en)
  • B96 (en)
dbp:wikiPageUsesTemplate
dcterms:subject
gold:hypernym
rdf:type
rdfs:comment
  • مارك بار (بالإنجليزية: James Mark McGinnis Barr)‏ هو مخترِع ورياضياتي أمريكي، ولد في 18 مايو 1871، وتوفي في 15 ديسمبر 1950. (ar)
  • James Mark McGinnis Barr (May 18, 1871 – December 15, 1950) was an electrical engineer, physicist, inventor, and polymath known for proposing the standard notation for the golden ratio. Born in America, but with English citizenship, Barr lived in both London and New York City at different times of his life. Though remembered primarily for his contributions to abstract mathematics, Barr put much of his efforts over the years into the design of machines, including calculating machines. He won a gold medal at the 1900 Paris Exposition Universelle for an extremely accurate engraving machine. (en)
rdfs:label
  • Mark Barr (en)
  • مارك بار (ar)
owl:sameAs
prov:wasDerivedFrom
foaf:depiction
foaf:isPrimaryTopicOf
is dbo:wikiPageRedirects of
is dbo:wikiPageWikiLink of
is foaf:primaryTopic of
Powered by OpenLink Virtuoso    This material is Open Knowledge     W3C Semantic Web Technology     This material is Open Knowledge    Valid XHTML + RDFa
This content was extracted from Wikipedia and is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License