About: Bertram Boltwood     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : umbel-rc:Scientist, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)
QRcode icon
http://dbpedia.demo.openlinksw.com/describe/?url=http%3A%2F%2Fdbpedia.org%2Fresource%2FBertram_Boltwood

Bertram Borden Boltwood (July 27, 1870 Amherst, Massachusetts – August 15, 1927, Hancock Point, Maine) was an American pioneer of radiochemistry. Boltwood attended Yale University, became a professor there and in 1910 was appointed chair of the first academic department of radiochemistry. He established that lead was the final decay product of uranium, noted that the lead-uranium ratio was greater in older rocks and, acting on a suggestion by Ernest Rutherford, was the first to measure the age of rocks by the decay of uranium to lead, in 1907. He got results of ages of 400 to 2200 million years, the first successful use of radioactive decay by Pb/U chemical dating. More recently, older mineral deposits have been dated to about 4.4 billion years old, close to the best estimate of the age of

AttributesValues
rdf:type
rdfs:label
  • Bertram Boltwood (de)
  • Bertram Boltwood (es)
  • Bertram Boltwood (en)
  • Bertram Boltwood (eu)
  • Bertram Boltwood (fr)
  • Bertram Boltwood (it)
  • Bertram Boltwood (pt)
  • Bertram Boltwood (sv)
  • Болтвуд, Бертрам (ru)
rdfs:comment
  • Bertram Borden Boltwood (* 27. Juli 1870 in Amherst, Massachusetts, USA; † 14./15. August 1927 in , Maine (durch Selbstmord)) war ein US-amerikanischer Radiochemiker. (de)
  • Bertram Borden Boltwood (Massachusetts, AEB, 1870eko uztailaren 27a - , AEB, 1927ko abuztuaren 15a) fisikaria eta kimikaria izan zen. Erradioaktibitatearen ikerketan aritu zen batez ere. Osagai berri bat aurkitu zuen, ionio izendatu zuena, baina geroago osagai hori torioaren eratorria zela konturatu zen. Beruna beti uranioan aurkitzen dela ere frogatu zuen. Lur-geruzen adina zehazteko, uranioaren gangetan dagoen berun kopurua eta horren desintegrazio-kopurua kalkulatzea nahikoa zela argitu zuen. Gehiegizko lanaren ondorioz depresio sakon bat izan zuen, eta azkenik bere burua hil zuen. (eu)
  • Bertram Borden Boltwood, né le 27 juillet 1870 à Amherst (Massachusetts) et mort le 15 août 1927 à (Maine), est un radiochimiste américain. Il a établi que le plomb était l'élément final de la famille radioactive de l'uranium (celle de l'uranium 235). Il remarqua aussi, sur une idée d'Ernest Rutherford, que le ratio plomb/uranium était plus important dans des roches plus anciennes, et en inféra en 1907 une méthode géologique de datation des roches. Il souffrira de dépression et se suicidera en 1927. (fr)
  • Bertram Borden Boltwood (Amherst, 27 luglio 1870 – Hancock Point, 15 agosto 1927) è stato un chimico statunitense. (it)
  • Бертрам Болтвуд (англ. Bertram Borden Boltwood; 27 июля 1870, Амхерст, США — 15 августа 1927, Хэнкок, США) — американский учёный. Проходил стажировку в Англии у Эрнеста Резерфорда. Доказал, что радий является продуктом распада урана. Также в 1907 году высказал предположение, что свинец является продуктом распада урана, что позволило вычислить возраст Земли, который насчитывал 4,6 млрд лет. Открыл ионий. Покончил жизнь самоубийством. (ru)
  • Bertram Borden Boltwood (Amherst, 27 de julho de 1870 — Hancock Point, 15 de agosto de 1927) foi um pioneiro da radioquímica estadunidense. (pt)
  • Bertram Borden Boltwood (July 27, 1870 Amherst, Massachusetts – August 15, 1927, Hancock Point, Maine) was an American pioneer of radiochemistry. Boltwood attended Yale University, became a professor there and in 1910 was appointed chair of the first academic department of radiochemistry. He established that lead was the final decay product of uranium, noted that the lead-uranium ratio was greater in older rocks and, acting on a suggestion by Ernest Rutherford, was the first to measure the age of rocks by the decay of uranium to lead, in 1907. He got results of ages of 400 to 2200 million years, the first successful use of radioactive decay by Pb/U chemical dating. More recently, older mineral deposits have been dated to about 4.4 billion years old, close to the best estimate of the age of (en)
  • Bertram Borden Boltwood (Amherst, Massachusetts, 27 de julio de 1870 - Hancock Point, Maine, 15 de agosto de 1927) fue un pionero estadounidense de la radioquímica, recordado por haber hecho en 1907 la primera datación radiométrica usando el método ahora conocido como datación uranio-plomo. En sus últimos días, Boltwood sufrió depresión y se suicidó el 15 de agosto de 1927. La boltwoodita, un mineral descubierto en 1956 en Utah perteneciente a la clase de los nesosilicatos, lleva su nombre. Fue miembro de la . (es)
  • Bertram Borden Boltwood, född 27 juli 1870 i Amherst, Massachusetts, död 15 augusti 1927 i , Maine, var en amerikansk kemist. Boltwood blev 1897 filosofie doktor och tjänstgjorde flera år som assistent i kemi och fysik vid Yale University, där han 1910 blev professor i radiokemi. Hans tidigare undersökningar omfattade organiska och oorganiska klorider, men han nedlade sedermera ett synnerligen betydelsefullt arbete på radioaktivitetens område. Han fann vid 1904 påbörjade bestämningar, att förhållandet mellan mängderna radium och uran var konstant i äldre uranmineral, ett bevis för radiums härstamning från uran och upptäckte 1907 radiums direkta modersubstans, torium-230 (jonium), vars egenskaper han undersökte, och bestämde i samband därmed radiums livslängd (1908). Han framkastade även ta (sv)
foaf:name
  • Bertram Borden Boltwood (en)
name
  • Bertram Borden Boltwood (en)
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/Bertram_Boltwood_in_the_lab_1917_at_Yale_1917.jpg
birth place
death place
death place
death date
birth place
birth date
dcterms:subject
Wikipage page ID
Wikipage revision ID
Link from a Wikipage to another Wikipage
Faceted Search & Find service v1.17_git139 as of Feb 29 2024


Alternative Linked Data Documents: ODE     Content Formats:   [cxml] [csv]     RDF   [text] [turtle] [ld+json] [rdf+json] [rdf+xml]     ODATA   [atom+xml] [odata+json]     Microdata   [microdata+json] [html]    About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 08.03.3330 as of Mar 19 2024, on Linux (x86_64-generic-linux-glibc212), Single-Server Edition (378 GB total memory, 49 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software