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Domenico Pacini
Domenico Pacini ( Marino, February 20, 1878 – Rome, May 23, 1934) was an Italian physicist noted for his contributions to the discovery of cosmic rays. Biography He graduated in Physics at the University of Rome in 1902. Assistant at the "''Regio Ufficio Centrale di Meteorologia e di Geodinamica''" (Italian Agency of Meteorology and Geodynamics) from 1905 to 1927. Teacher of Geophysics from 1915 to 1925 at the University of Rome, then professor of Experimental physics at the University of Bari from 1928. It had been observed that an electroscope in a vessel at earth potential gradually lost its charge, even if very carefully insulated, due to the ionization of the air. Pacini observed simultaneous variations of the rate of ionization on mountains, over a lake, over the sea, and underwater. In an experiment performed in June 1911, Pacini concluded that ionization underwater was significantly lower than on the sea surface. He could then demonstrate that a certain part of the ioni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electroscope
The electroscope is an early scientific instrument used to detect the presence of electric charge on a body. It detects charge by the movement of a test object due to the Coulomb electrostatic force on it. The amount of charge on an object is proportional to its voltage. The accumulation of enough charge to detect with an electroscope requires hundreds or thousands of volts, so electroscopes are used with high voltage sources such as static electricity and electrostatic machines. An electroscope can only give a rough indication of the quantity of charge; an instrument that measures electric charge quantitatively is called an electrometer. The electroscope was the first electrical measuring instrument. The first electroscope was a pivoted needle (called the '' versorium''), invented by British physician William Gilbert around 1600. a translation by P. Fleury Mottelay of William Gilbert (1600) ''Die Magnete'', London The pith-ball electroscope and the gold-leaf electrosco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Italian Meteorologists
Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group 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 marinade * Italian or Italian-A, alternative names for the Ping-Pong virus The Ping-Pong virus (also called Boot, Bouncing Ball, Bouncing Dot, Italian, Italian-A or VeraCruz) is a boot sector virus discovered on March 1, 1988, at the '' Politecnico di Torino'' (Turin Polytechnic University) in Italy. It was likely the ..., an extinct computer virus See also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Experimental Physicists
An experiment is a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried. Experiments provide insight into cause-and-effect by demonstrating what outcome occurs when a particular factor is manipulated. Experiments vary greatly in goal and scale but always rely on repeatable procedure and logical analysis of the results. There also exist natural experimental studies. A child may carry out basic experiments to understand how things fall to the ground, while teams of scientists may take years of systematic investigation to advance their understanding of a phenomenon. Experiments and other types of hands-on activities are very important to student learning in the science classroom. Experiments can raise test scores and help a student become more engaged and interested in the material they are learning, especially when used over time. Experiments can vary from personal and informal natural comparisons (e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People From Marino, Lazio
A person ( : people) is a being that has certain capacities or attributes such as reason, morality, consciousness or self-consciousness, and being a part of a culturally established form of social relations such as kinship, ownership of property, or legal responsibility. The defining features of personhood and, consequently, what makes a person count as a person, differ widely among cultures and contexts. In addition to the question of personhood, of what makes a being count as a person to begin with, there are further questions about personal identity and self: both about what makes any particular person that particular person instead of another, and about what makes a person at one time the same person as they were or will be at another time despite any intervening changes. The plural form "people" is often used to refer to an entire nation or ethnic group (as in "a people"), and this was the original meaning of the word; it subsequently acquired its use as a plural form of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1934 Deaths
Events January–February * January 1 – The International Telecommunication Union, a specialist agency of the League of Nations, is established. * January 15 – The 8.0 1934 Nepal–Bihar earthquake, Nepal–Bihar earthquake strikes Nepal and Bihar with a maximum Mercalli intensity scale, Mercalli intensity of XI (''Extreme''), killing an estimated 6,000–10,700 people. * January 26 – A 10-year German–Polish declaration of non-aggression is signed by Nazi Germany and the Second Polish Republic. * January 30 ** In Nazi Germany, the political power of federal states such as Prussia is substantially abolished, by the "Law on the Reconstruction of the Reich" (''Gesetz über den Neuaufbau des Reiches''). ** Franklin D. Roosevelt, President of the United States, signs the Gold Reserve Act: all gold held in the Federal Reserve is to be surrendered to the United States Department of the Treasury; immediately following, the President raises the statutory gold price from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1878 Births
Events January–March * January 5 – Russo-Turkish War – Battle of Shipka Pass IV: Russian and Bulgarian forces defeat the Ottoman Empire. * January 9 – Umberto I becomes King of Italy. * January 17 – Battle of Philippopolis: Russian troops defeat the Turks. * January 23 – Benjamin Disraeli orders the British fleet to the Dardanelles. * January 24 – Russian revolutionary Vera Zasulich shoots at Fyodor Trepov, Governor of Saint Petersburg. * January 28 – '' The Yale News'' becomes the first daily college newspaper in the United States. * January 31 – Turkey agrees to an armistice at Adrianople. * February 2 – Greece declares war on the Ottoman Empire. * February 7 – Pope Pius IX dies, after a 31½ year reign (the longest definitely confirmed). * February 8 – The British fleet enters Turkish waters, and anchors off Istanbul; Russia threatens to occupy Istanbul, but does not carry out the threat. * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ionization
Ionization, or Ionisation is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons, often in conjunction with other chemical changes. The resulting electrically charged atom or molecule is called an ion. Ionization can result from the loss of an electron after collisions with subatomic particles, collisions with other atoms, molecules and ions, or through the interaction with electromagnetic radiation. Heterolytic bond cleavage and heterolytic substitution reactions can result in the formation of ion pairs. Ionization can occur through radioactive decay by the internal conversion process, in which an excited nucleus transfers its energy to one of the inner-shell electrons causing it to be ejected. Uses Everyday examples of gas ionization are such as within a fluorescent lamp or other electrical discharge lamps. It is also used in radiation detectors such as the Geiger-Müller counter or the ionization chamber. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Bari
The University of Bari Aldo Moro ( it, Università degli Studi di Bari Aldo Moro) is a state-supported higher education institution founded in 1925 in Bari, Apulia, in Southern Italy. The university is one of the most prestigious universities in southern Italy and it is one of the largest in Italy, with a student population of around 60,000. A recent name change refers to the statesman Aldo Moro (1916-1978), a student of law there until 1939 who then served as ordinary professor of philosophy of Law and Colonial Policy (1941) and of Criminal Law (1942). Organization The University of Bari is divided into various faculties. Each faculty has its own set of departments that focus on the arts sciences, mathematics, social sciences, literature, medicine, law, and education. These are the 13 faculties in which the university is divided into: * Faculty of Agricultural Science * Faculty of Arts and Philosophy * Faculty of Biotechnological Sciences * Faculty of Communication Studies * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marino, Italy
Marino ( la, Marinum or , local Romanesco: ) is an Italian city and ''comune'' in Lazio (central Italy), on the Alban Hills, Italy, southeast of Rome, with a population of 37,684 and a territory of . It is bounded by other communes, Castel Gandolfo, Albano Laziale, Rocca di Papa, Grottaferrata, and Ciampino. Marino is famous for its white wine, and for its ''Grape Festival'', which has been celebrated since 1924. History The territory of Marino was inhabited by Latin tribes from the 1st millennium BC. The ancient cities of ''Bovillae'' ( Frattocchie), ''Mugilla'' (Santa Maria delle Mole, a ''frazione'' of the ''comune'' of Marino) and ''Ferentum'' (Marino itself) were part of the Latin League. Under the Roman Republic it was a summer resort for Roman patricians, who built luxurious villas in the area to escape the heat of Rome. In 846 AD, Bovillae - until then the largest settlement - was destroyed by the Saracens, and the population moved to the more easily defendable area o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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