Bertram 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
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1907 in scienceAda HitchinsAge of EarthArthur HolmesAsimov's Biographical Encyclopedia of Science and TechnologyBertram B. BoltwoodBertram Borden BoltwoodBoltwoodBoltwooditeConnecticut Academy of Arts and SciencesEllen GleditschErnest RutherfordHistory of the periodic tableHot_Springs_National_ParkIndex of physics articles (B)Jones LibraryList of important publications in geologyOtto HahnRadiometric datingStefanie HorovitzThe Great Abraham Lincoln Pocket Watch ConspiracyTimeline of geology
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Bertram 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
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Bertram Borden Boltwood (* 27. ...... -amerikanischer Radiochemiker.
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Bertram Borden Boltwood (Amher ...... da radioquímica estadunidense.
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Bertram Borden Boltwood (Amher ...... stato un chimico statunitense.
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Bertram Borden Boltwood (Amher ...... su nombre. Fue miembro de la .
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Bertram Borden Boltwood (July ...... ed suicide on August 15, 1927.
@en
Bertram Borden Boltwood (Massa ...... a azkenik bere burua hil zuen.
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Bertram Borden Boltwood, född ...... "American Journal of Science".
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Bertram Borden Boltwood, né le ...... ssion et se suicidera en 1927.
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Бертрам Болтвуд (англ. Bertram ...... Покончил жизнь самоубийством.
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1870-07-27
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1927-07-27
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1870-07-27
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Boltwood at Yale 1917
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Radiochemistry
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Bertram Borden Boltwood
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Bertram Borden Boltwood (* 27. ...... -amerikanischer Radiochemiker.
@de
Bertram Borden Boltwood (Amher ...... da radioquímica estadunidense.
@pt
Bertram Borden Boltwood (Amher ...... stato un chimico statunitense.
@it
Bertram Borden Boltwood (Amher ...... su nombre. Fue miembro de la .
@es
Bertram Borden Boltwood (July ...... he best estimate of the age of
@en
Bertram Borden Boltwood (Massa ...... a azkenik bere burua hil zuen.
@eu
Bertram Borden Boltwood, född ...... 1908). Han framkastade även ta
@sv
Bertram Borden Boltwood, né le ...... ssion et se suicidera en 1927.
@fr
Бертрам Болтвуд (англ. Bertram ...... Покончил жизнь самоубийством.
@ru
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Bertram Boltwood
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Bertram Boltwood
@en
Bertram Boltwood
@es
Bertram Boltwood
@eu
Bertram Boltwood
@fr
Bertram Boltwood
@it
Bertram Boltwood
@pt
Bertram Boltwood
@sv
Болтвуд, Бертрам
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Bertram Borden Boltwood
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