Brief biography of barack obama
Anders Gustaf Ekeberg
Swedish analytical chemist
Anders Gustaf Ekeberg (16 January in Stockholm, Sweden – 11 February in Uppsala, Sweden) was a Swedish analytical chemist who discovered tantalum in [1][2][3][4] He was notably deaf.[5]
Education
Anders Gustav Ekeberg was a Swedish scientist, mathematician and expert in Greek literature.
His father, Joseph Erik Ekeberg, was a shipbuilder.
Anders gustaf ekeberg biography of barack obama full
The website is no longer updated and links to external websites and some internal pages may not work. Barack Obama served as the 44th President of the United States. His story is the American story — values from the heartland, a middle-class upbringing in a strong family, hard work and education as the means of getting ahead, and the conviction that a life so blessed should be lived in service to others. When Barack Obama was elected president in , he became the first African American to hold the office. The framers of the Constitution always hoped that our leadership would not be limited to Americans of wealth or family connections.His uncle was Carl Gustaf Ekeberg.[1]
Anders Gustav Ekeberg attended school at Kalmar, Söderåkra, Vestervik, and Karlskrona. He was a gifted student and enrolled at Uppsala University in , graduating in His thesis addressed the extraction of oils from seeds.[1] In and , he traveled and studied in Germany, hearing Martin Heinrich Klaproth lecture in Berlin as well as Christian Ehrenfried Weigel in Greifswald.[6]
Career
In , Anders Gustav Ekeberg began teaching at Uppsala.
He was a supporter of Antoine Lavoisier's proposals for systematizing chemical nomenclature. In he and Pehr von Afzelius published the first article to introduce the modern names for chemical elements such as hydrogen, nitrogen, and oxygen into the Swedish language,[1] "On the Present State of Chemical Sciences".[6]
He was made docent in chemistry in and experimentator (laborator) in , working as a demonstrator in the laboratory of Torbern Bergman.[7] In he lectured on the theory of combustion.
Biography of barack obama president: Anders Gustaf Ekeberg was born in in Sweden. He was a Swedish scientist, mathematician, and poet. He became a professor at Uppsala University in and initially made his name by developing advanced analytical techniques and by proposing Swedish names for the common chemical elements according to the principles set out by the "father of.
In , he was elected a member of the Royal Swedish Academy of Sciences.[1]
Ekeberg had poor health throughout his life. During his childhood a severe cold had impaired his hearing, which was further weakened over the years, so that it hindered his teaching activities. Subsequently, a gas explosion blinded him in one eye.[8]
Ekeberg was portrayed by his friends and students as a kind and gentle man.
He died, unmarried, at the age of [9]
Research
Ekeberg analyzed a number of the minerals found at Ytterby and Falun.
In he analyzed specimens of tantalite from Kimito, Finland, and of yttrotantalite from Ytterby, Sweden. He is credited with finding the element tantalum in both.[1]
Ekeberg named the new element after the mythical Ancient Greek demigod Tantalus. According to legend, he was condemned to eternal frustration when he had to stand in water up to his neck, but the water receded as he attempted to drink.[10]
The Anders Gustaf Ekeberg Tantalum Prize
In the Tantalum-Niobium International Study Center established The Anders Gustaf Ekeberg Tantalum Prize ("Ekeberg Prize"), an annual award to recognize excellence in tantalum research.
The Prize will increase awareness of the many unique properties of tantalum products and the applications in which they excel.[11] The inaugural winner of the Ekeberg Prize was Yuri Freeman, for his book "Tantalum and Niobium-Based Capacitors" (Springer, ).[12][13]
References
- ^ abcdefWeeks, Mary Elvira ().Anders gustaf ekeberg biography of barack obama Ekeberg studied in Uppsala, Greifswald, and Berlin from to He worked at the Council of Mining in and in the same year became assistant professor of chemistry at the University of Uppsala. In he became associate professor and a member of the Royal Swedish Academy of Science. Both of these outspokenly antiphlogistic works were published anonymously because Ekeberg was anxious to avoid conflicts with Johan Afzelius, his superior in Uppsala, who distrusted the new theories. Ekeberg was an extraordinarily capable analytic chemist.
The discovery of the elements (6th&#;ed.). Easton, PA: Journal of Chemical Education.
- ^Marshall, James L.; Marshall, Virginia R. (). "Rediscovery of the Elements: Columbium and Tantalum"(PDF). The Hexagon: 20– Retrieved 30 December
- ^Weeks, Mary Elvira ().
"The Discovery of the Elements: VII. Columbium, Tantalum, and Vanadium". Journal of Chemical Education. 9 (5): – BibcodeJChEdW. doi/edp
- subscription required - ^Academie-Adjuncten och Chemie-Labratorn i Upsala (). "Mag. And. Gust. Ekebergs Biographie". Kungliga Svenska Vetenskapsakademiens Handlingar (in Swedish).
23: –
- ^Lang, Harry G. (June ).
- Biography of barack obama president
- Anders gustaf ekeberg biography of barack obama for kids
- Brief biography of barack obama
"Book Review". Isis. 93 (2): – doi/ JSTOR&#;/
- ^ abLundgren, Anders (). "The New Chemistry in Sweden: The Debate That Wasn't".Anders gustaf ekeberg biography of barack obama president Barack Obama undoubtedly possesses one of the most complicated — and fascinating — backgrounds of any former president of the United States. And yet, in hindsight, his political ascent makes almost perfect sense. Because his presidency ended so recently, and due to his young age, it could be three decades or more before the definitive biography of Obama is written. To wrap up this six-year journey through the best biographies of the presidents I read three books on Barack H. Unfortunately, the degree of satisfaction a reader achieves by patiently navigating its ten chapters is inadequate compensation for the persistently tedious experience.
Osiris. 4 The Chemical Revolution: Essays in Reinterpretation: – doi/ S2CID&#;
- ^Debus, Allen G. (). World Who's who in Science: A Biographical Dictionary of Notable Scientists from Antiquity to the Present. Marquis-Who's Who. p.&#;
- ^Jorpes, J.
Erik () Jac. Berzelius – his life and work; translated from the Swedish manuscript by Barbara Steele.
Biography of barack obama early life Obama had a close relationship with his maternal grandparents. In , his mother remarried to Lolo Soetoro from Indonesia. Two years later, Dunham took Obama with her to Indonesia to reunite him with his stepfather. In , Obama returned to Honolulu to attend Punahou School , from which he graduated in In Chicago , Obama worked at various times as a community organizer, lawyer, lecturer and senior Lecturer of constitutional law at the University of Chicago Law School in the city's South Side , and later published his memoir Dreams from My Father before beginning his political career in as a member of the Illinois Senate.Stockholm: Almqvist & Wiksell, (Reissued by University of California Press, Berkeley, ISBN&#;)
- ^Lang, Harry G.; Meath-Lang, Bonnie (). Deaf Persons in the Arts and Sciences: A Biographical Dictionary. Rochester Institute of Technology. pp.&#;– ISBN&#;. Retrieved 7 December
- ^"Early history".
Tantalum-Niobium International Study Center (T.I.C.). Retrieved 7 December
- ^"The Anders Gustaf Ekeberg Tantalum Prize". Tantalum-Niobium International Study Center (T.I.C.). Retrieved 7 December
- ^"Ekeberg TIC Prize Winner Announced: Dr Yuri Freeman for "Tantalum and Niobium-Based Capacitors"".
Passive Components. September 11, Retrieved 7 December
- ^"Milestone For Tantalum & Niobium Industry". EXOTech. September 21, Retrieved 7 December