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Bertram Boltwood

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Artículo WikipediaFuente Dbpedia

Bertram Borden Boltwood (July 27, 1870 Amherst, Massachusetts - August 15, 1927, Hancock Point, Maine) was an American pioneer of radiochemistry.He graduated from Yale University, and taught there 1897-1900. 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 success of radiometric 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 earth. Boltwoodite is named after him.In his later days, Boltwood suffered from depression and committed suicide on August 15, 1927.

Fecha de nacimiento 1870-07-27

Nombre de nacimiento Bertram Borden Boltwood

Año de nacimiento 1870

Fecha de defunción 1927-08-15

Año de defunción 1927

Wikipedia Inglés http://en.wikipedia.org/wiki/Bertram_Boltwood

Wikipedia Español http://es.wikipedia.org/wiki/Bertram_Boltwood

Enlaces externos relacionado http://www.britannica.com/EBchecked/topic/72399/Bertram-Borden-Boltwood http://www.minrec.org/labels.asp?colid=196 http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/boltwood-bertram-b.pdf http://www.pbs.org/wgbh/aso/databank/entries/do07ra.html