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Zaira Ollano
Zaira Ollano (1904–1997) was an Italian physicist, researcher and professor. She investigated physics and nuclear physics, including the radiation absorption properties of beryllium. Life and work Ollano was born in Cagliari, the capital of Sardinia, Italy, on 4 March 1904, to Francesco and Felicina Statzu (or Stazu). Cagliari She graduated in physics at the University of Cagliari in 1926, and remained there as an assistant in experimental physics until 1936. When the department chair died in 1928, physicist Rita Brunetti from Ferrara, Italy assumed that position and for many years, Ollano and Brunetti collaborated to advance concepts in physics. In 1929, Brunetti and Ollano developed an experiment to verify, for the first time, the Stark-Lo Surdo effect on a solid compound, determining the order of magnitude of the intramolecular electric field in didymium compounds. Also in 1929, the two physicists began investigating Raman scattering, which had been discovered only in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cagliari
Cagliari (, , ; ; ; Latin: ''Caralis'') is an Comune, Italian municipality and the capital and largest city of the island of Sardinia, an Regions of Italy#Autonomous regions with special statute, autonomous region of Italy. It has about 146,627 inhabitants, while its Metropolitan City of Cagliari, metropolitan city, 16 other nearby municipalities, has about 417,079 inhabitants. According to Eurostat, the population of the Functional urban area, functional urban area, the commuting zone of Cagliari, rises to 476,975. Cagliari is the 26th largest city in Italy and the largest city on the island of Sardinia. An ancient city with a long history, Cagliari has seen the rule of several civilisations. Under the buildings of the modern city there is a continuous stratification attesting to human settlement over the course of some five thousand years, from the Neolithic to today. Historical sites include the prehistoric Domus de Janas, partly damaged by cave activity, a large Ancient Car ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydronium
In chemistry, hydronium (hydroxonium in traditional British English) is the cation , also written as , the type of oxonium ion produced by protonation of water. It is often viewed as the positive ion present when an Arrhenius acid is dissolved in water, as Arrhenius acid molecules in solution give up a proton (a positive hydrogen ion, ) to the surrounding water molecules (). In fact, acids must be surrounded by more than a single water molecule in order to ionize, yielding aqueous and conjugate base. Three main structures for the aqueous proton have garnered experimental support: * the Eigen cation, which is a tetrahydrate, H3O+(H2O)3 * the Zundel cation, which is a symmetric dihydrate, H+(H2O)2 * and the Stoyanov cation, an expanded Zundel cation, which is a hexahydrate: H+(H2O)2(H2O)4 Spectroscopic evidence from well-defined IR spectra overwhelmingly supports the Stoyanov cation as the predominant form. For this reason, it has been suggested that wherever possible, the sy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Italian Women Physicists
Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, a Romance ethnic group related to or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional Italian, regional variants of the Italian language ** Languages of Italy, languages and dialects spoken in Italy ** Italian culture, cultural features of Italy ** Italian cuisine, traditional foods ** Folklore of Italy, the folklore and urban legends of Italy ** Mythology of Italy, traditional religion and beliefs Other uses * Italian dressing, a vinaigrette-type salad dressing or marination * Italian or Italian-A, alternative names for the Ping-Pong virus, an extinct computer virus * ''Italien'' (magazine), pro-Fascist magazine in Germany between 1927 and 1944 See also * * * Italia (other) * Italic (other) * Italo (other) * The Italian (other) * Italian people (other) Italian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Academic Staff Of The University Of Pavia
An academy (Attic Greek: Ἀκαδήμεια; Koine Greek Ἀκαδημία) is an institution of tertiary education. The name traces back to Plato's school of philosophy, founded approximately 386 BC at Akademia, a sanctuary of Athena, the goddess of wisdom and Skills, skill, north of Ancient Athens, Athens, Greece. The Royal Spanish Academy defines academy as scientific, literary or artistic society established with public authority and as a teaching establishment, public or private, of a professional, artistic, technical or simply practical nature. Etymology The word comes from the ''Academy'' in ancient Greece, which derives from the Athenian hero, ''Akademos''. Outside the city walls of Athens, the Gymnasium (ancient Greece), gymnasium was made famous by Plato as a center of learning. The sacred space, dedicated to the goddess of wisdom, Athena, had formerly been an olive Grove (nature), grove, hence the expression "the groves of Academe". In these gardens, the philos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Cagliari Alumni
A university () is an institution of tertiary education and research which awards academic degrees in several academic disciplines. ''University'' is derived from the Latin phrase , which roughly means "community of teachers and scholars". Universities typically offer both undergraduate and postgraduate programs. The first universities in Europe were established by Catholic monks. The University of Bologna (), Italy, which was founded in 1088, is the first university in the sense of: *being a high degree-awarding institute. *using the word (which was coined at its foundation). *having independence from the ecclesiastic schools and issuing secular as well as non-secular degrees (with teaching conducted by both clergy and non-clergy): grammar, rhetoric, logic, theology, canon law and notarial law.Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2008, , p. 55f.de Ridder-Symoens, Hilde''A History of the University in Europe: Volume 1, Universities in the Mid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1997 Deaths
This is a list of lists of deaths of notable people, organized by year. New deaths articles are added to their respective month (e.g., Deaths in ) and then linked below. 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 Earlier years ''Deaths in years earlier than this can usually be found in the main articles of the years.'' See also * Lists of deaths by day * Deaths by year (category) {{DEFAULTSORT:deaths by year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1904 Births
Events January * January 7 – The distress signal ''CQD'' is established, only to be replaced 2 years later by ''SOS''. * January 8 – The Blackstone Library is dedicated, marking the beginning of the Chicago Public Library system. * January 12 – The Herero Wars in German South West Africa begin. * January 17 – Anton Chekhov's last play, ''The Cherry Orchard'' («Вишнëвый сад», ''Vishnevyi sad''), opens at the Moscow Art Theatre directed by Constantin Stanislavski, 6 month's before the author's death. * January 23 – The Ålesund fire destroys most buildings in the town of Ålesund, Norway, leaving about 10,000 people without shelter. * January 25 – Halford Mackinder presents a paper on "The Geographical Pivot of History" to the Royal Geographical Society of London in which he formulates the Heartland Theory, originating the study of geopolitics. February * February 7 – The Great Baltimore Fire in Baltimore, Maryland, destroys over 1,500 build ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Free University Of Brussels (1834–1969)
The Free University of Brussels ( or ULB; , later ''Vrije Universiteit Brussel'') was a private university in Brussels, Belgium. It existed between 1834 and 1969 when it split along linguistic lines. Founded in 1834 on the principle of "free inquiry" (), its founders envisaged the institution as a freethought, freethinker reaction to the traditional dominance of Catholicism in the country's education system. It was avowedly secularism, secular and particularly associated with Liberalism in Belgium, political liberalism during the era of pillarisation. The Free University was one of Belgium's major universities, together with the Catholic University of Leuven (1835–1968), Catholic University of Leuven and the University of Liège, state universities of Liège and University of Ghent, Ghent. The "Linguistic Wars" affected the Free University, which split along language lines in 1969 in the aftermath of Split of the Catholic University of Leuven, student unrest at Leuven the prev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meson
In particle physics, a meson () is a type of hadronic subatomic particle composed of an equal number of quarks and antiquarks, usually one of each, bound together by the strong interaction. Because mesons are composed of quark subparticles, they have a meaningful physical size, a diameter of roughly one femtometre (10 m), which is about 0.6 times the size of a proton or neutron. All mesons are unstable, with the longest-lived lasting for only a few tenths of a nanosecond. Heavier mesons decay to lighter mesons and ultimately to stable electrons, neutrinos and photons. Outside the nucleus, mesons appear in nature only as short-lived products of very high-energy collisions between particles made of quarks, such as cosmic rays (high-energy protons and neutrons) and baryonic matter. Mesons are routinely produced artificially in cyclotrons or other particle accelerators in the collisions of protons, antiprotons, or other particles. Higher-energy (more massive) mesons were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Pavia
The University of Pavia (, UNIPV or ''Università di Pavia''; ) is a university located in Pavia, Lombardy, Italy. There was evidence of teaching as early as 1361, making it one of the List of oldest universities in continuous operation, oldest universities in the world. It was the sole university in Milan and the greater Lombardy region until the end of the 19th century. In 2022, the university was recognized by the Times Higher Education World University Rankings, Times Higher Education among the top 10 in Italy and among the 300 best in the world. Currently, it has 18 departments and 9 faculties. It does not have a main campus; its buildings and facilities are scattered around the city, which is in turn called "a city campus". The university caters to more than 20,000 students who come from Italy and all over the world. The university offers more than 80 undergraduate programs; over 40 master programs, and roughly 20 doctoral programs (including 8 in English). About 1,500 studen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
