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Emilio Picasso
Emilio Picasso (9 July 1927, in Genoa – 12 October 2014) was an Italian physicist. He served as a researcher at CERN and was the project leaders for the LEP (the large electron-positron collider) one of the largest particle accelerators ever constructed. Picasso was awarded the Legion of Honour from France and is also bearer of the Knight Grand Cross of the Italian Republic, Italy's highest civilian honor. When he passed, his hometown newspaper called it a moment of mourning for "the international scientific community and for Pisa." Life and career Picasso studied first mathematics and then two years physics at the University of Genoa. After his doctorate, he started working there as an assistance professor for experimental physics. At the beginning he kept himself busy with atom physics, but then his interests changed to elementary particle physics. Therefore, he worked at the Betatron in Turin and then at the Synchrotron in Frascati. In the years 1961/62 he worked in a group ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genoa
Genoa ( ; it, Genova ; lij, Zêna ). is the capital of the Regions of Italy, Italian region of Liguria and the List of cities in Italy, sixth-largest city in Italy. In 2015, 594,733 people lived within the city's administrative limits. As of the 2011 Italian census, the Province of Genoa, which in 2015 became the Metropolitan City of Genoa, had 855,834 resident persons. Over 1.5 million people live in the wider metropolitan area stretching along the Italian Riviera. On the Gulf of Genoa in the Ligurian Sea, Genoa has historically been one of the most important ports on the Mediterranean Sea, Mediterranean: it is currently the busiest in Italy and in the Mediterranean Sea and twelfth-busiest in the European Union. Genoa was the capital of Republic of Genoa, one of the most powerful maritime republics for over seven centuries, from the 11th century to 1797. Particularly from the 12th century to the 15th century, the city played a leading role in the commercial trade in Euro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frascati
Frascati () is a city and ''comune'' in the Metropolitan City of Rome Capital in the Lazio region of central Italy. It is located south-east of Rome, on the Alban Hills close to the ancient city of Tusculum. Frascati is closely associated with science, being the location of several international scientific laboratories. Frascati produces the white wine with the same name. It is also a historical and artistic centre. History The most important archeological finding in the area, dating back to Ancient Roman times, during the late Republican Age, is a patrician Roman villa probably belonging to Lucullus. In the first century AD its owner was Gaius Sallustius Crispus Passienus, who married Agrippina the Younger, mother of Nero. His properties were later confiscated by the Flavian imperial dynasty (69–96 AD). Consul Flavius Clemens lived in the villa with his wife Domitilla during the rule of Domitian. According to the ''Liber Pontificalis'', in the 9th century Frascati was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proton Synchrotron
The Proton Synchrotron (PS, sometimes also referred to as CPS) is a particle accelerator at CERN. It is CERN's first synchrotron, beginning its operation in 1959. For a brief period the PS was the world's highest energy particle accelerator. It has since served as a pre-accelerator for the Intersecting Storage Rings (ISR) and the Super Proton Synchrotron (SPS), and is currently part of the Large Hadron Collider (LHC) accelerator complex. In addition to protons, PS has accelerated alpha particles, oxygen and sulfur nuclei, electrons, positrons, and antiprotons. Today, the PS is part of CERN's accelerator complex. It accelerates protons for the LHC as well as a number of other experimental facilities at CERN. Using a negative hydrogen ion source, the ions are first accelerated to the energy of 160 MeV in the linear accelerator Linac 4. The hydrogen ion is then stripped of both electrons, leaving only the nucleus containing one proton, which is injected into the Proton Synchrotron B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proton
A proton is a stable subatomic particle, symbol , H+, or 1H+ with a positive electric charge of +1 ''e'' elementary charge. Its mass is slightly less than that of a neutron and 1,836 times the mass of an electron (the proton–electron mass ratio). Protons and neutrons, each with masses of approximately one atomic mass unit, are jointly referred to as "nucleons" (particles present in atomic nuclei). One or more protons are present in the Atomic nucleus, nucleus of every atom. They provide the attractive electrostatic central force which binds the atomic electrons. The number of protons in the nucleus is the defining property of an element, and is referred to as the atomic number (represented by the symbol ''Z''). Since each chemical element, element has a unique number of protons, each element has its own unique atomic number, which determines the number of atomic electrons and consequently the chemical characteristics of the element. The word ''proton'' is Greek language, G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronvolt
In physics, an electronvolt (symbol eV, also written electron-volt and electron volt) is the measure of an amount of kinetic energy gained by a single electron accelerating from rest through an electric potential difference of one volt in vacuum. When used as a unit of energy, the numerical value of 1 eV in joules (symbol J) is equivalent to the numerical value of the charge of an electron in coulombs (symbol C). Under the 2019 redefinition of the SI base units, this sets 1 eV equal to the exact value Historically, the electronvolt was devised as a standard unit of measure through its usefulness in electrostatic particle accelerator sciences, because a particle with electric charge ''q'' gains an energy after passing through a voltage of ''V.'' Since ''q'' must be an integer multiple of the elementary charge ''e'' for any isolated particle, the gained energy in units of electronvolts conveniently equals that integer times the voltage. It is a common unit of ene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frank Krienen
Frank or Franks may refer to: People * Frank (given name) * Frank (surname) * Franks (surname) * Franks, a medieval Germanic people * Frank, a term in the Muslim world for all western Europeans, particularly during the Crusades - see Farang Currency * Liechtenstein franc or frank, the currency of Liechtenstein since 1920 * Swiss franc or frank, the currency of Switzerland since 1850 * Westphalian frank, currency of the Kingdom of Westphalia between 1808 and 1813 * The currencies of the German-speaking cantons of Switzerland (1803–1814): ** Appenzell frank ** Argovia frank ** Basel frank ** Berne frank ** Fribourg frank ** Glarus frank ** Graubünden frank ** Luzern frank ** Schaffhausen frank ** Schwyz frank ** Solothurn frank ** St. Gallen frank ** Thurgau frank ** Unterwalden frank ** Uri frank ** Zürich frank Places * Frank, Alberta, Canada, an urban community, formerly a village * Franks, Illinois, United States, an unincorporated community * Franks, Missouri, United Sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guido Petrucci
Guido is a given name Latinised from the Old High German name Wido. It originated in Medieval Italy. Guido later became a male first name in Austria, Germany, the Low Countries, Scandinavia, Spain, Portugal, Latin America and Switzerland. The meaning of the name is debated, with various sources indicating the Germanic "Wido" means "wood" and others connecting the Italian form "Guido" to the latinate root for "guide". The slang term ''Guido'' is used in American culture to refer derogatorily to an urban working-class Italian or Italian-American male who is overly aggressive or macho with a tendency for certain conspicuous behavior. It may also be used as a more general ethnic slur for working-class urban Italian Americans. People Given name ;Medieval times *Guido of Acqui (–1070), bishop of Acqui, Italy * Guido of Anderlecht (–1012), Belgian saint *Guido of Arezzo (–after 1033), Italian music theorist *Guido da Velate, (died 1071) bishop of Milan *Guido Bonatti (died ), I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simon Van Der Meer
Simon van der Meer (24 November 19254 March 2011) was a Dutch particle accelerator physicist who shared the Nobel Prize in Physics in 1984 with Carlo Rubbia for contributions to the CERN project which led to the discovery of the W and Z particles, the two fundamental communicators of the weak interaction. Biography One of four children, Simon van der Meer was born and grew up in The Hague, the Netherlands, in a family of teachers. He was educated at the city's gymnasium, graduating in 1943 during the German occupation of the Netherlands. He studied Technical Physics at the Delft University of Technology, and received an engineer's degree in 1952. After working for Philips Research in Eindhoven on high-voltage equipment for electron microscopy for a few years, he joined CERN in 1956 where he stayed until his retirement in 1990. Van der Meer was a relative of Nobel Prize winner Tjalling Koopmans – they were first cousins once removed. In the mid-1960s, Van der Meer ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francis Farley
Francis James Macdonald Farley FRS (13 October 1920 - 16 July 2018) was a British scientist. He was elected Fellow of the Royal Society on 16 March 1972 earning the designation FRS. He was also a Fellow of the Institute of Physics and an honorary fellow of Trinity College Dublin. He was educated at Clifton College and at Clare College, Cambridge. Farley obtained his PhD from Cambridge in 1950. During World War II he designed and made the first X-band microwave radar with 100 ns pulse and a one degree beam which directed the 15" guns at Dover. It showed shells splashing around the target. He invented clutter reference Doppler radar which could see vehicles on land and was used in Italy. As a senior lecturer in Auckland University he was a NZ delegate to the 1955 UN conference in Geneva on "Peaceful Uses of Atomic Energy". During a year at Harwell in 1955 he measured the neutron yield from plutonium fission as a function of the incident neutron epithermal energy. From 195 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leon M
Leon, Léon (French) or León (Spanish) may refer to: Places Europe * León, Spain, capital city of the Province of León * Province of León, Spain * Kingdom of León, an independent state in the Iberian Peninsula from 910 to 1230 and again from 1296 to 1301 * León (historical region), composed of the Spanish provinces León, Salamanca, and Zamora * Viscounty of Léon, a feudal state in France during the 11th to 13th centuries * Saint-Pol-de-Léon, a commune in Brittany, France * Léon, Landes, a commune in Aquitaine, France * Isla de León, a Spanish island * Leon (Souda Bay), an islet in Souda Bay, Chania, on the island of Crete North America * León, Guanajuato, Mexico, a large city * Leon, California, United States, a ghost town * Leon, Iowa, United States * Leon, Kansas, United States * Leon, New York, United States * Leon, Oklahoma, United States * Leon, Virginia, United States * Leon, West Virginia, United States * Leon, Wisconsin (other), United States, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantum Electrodynamics
In particle physics, quantum electrodynamics (QED) is the relativistic quantum field theory of electrodynamics. In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved. QED mathematically describes all phenomena involving electrically charged particles interacting by means of exchange of photons and represents the quantum counterpart of classical electromagnetism giving a complete account of matter and light interaction. In technical terms, QED can be described as a perturbation theory of the electromagnetic quantum vacuum. Richard Feynman called it "the jewel of physics" for its extremely accurate predictions of quantities like the anomalous magnetic moment of the electron and the Lamb shift of the energy levels of hydrogen. History The first formulation of a quantum theory describing radiation and matter interaction is attributed to British scientist Paul Dirac, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muon
A muon ( ; from the Greek letter mu (μ) used to represent it) is an elementary particle similar to the electron, with an electric charge of −1 '' e'' and a spin of , but with a much greater mass. It is classified as a lepton. As with other leptons, the muon is not thought to be composed of any simpler particles; that is, it is a fundamental particle. The muon is an unstable subatomic particle with a mean lifetime of , much longer than many other subatomic particles. As with the decay of the non-elementary neutron (with a lifetime around 15 minutes), muon decay is slow (by subatomic standards) because the decay is mediated only by the weak interaction (rather than the more powerful strong interaction or electromagnetic interaction), and because the mass difference between the muon and the set of its decay products is small, providing few kinetic degrees of freedom for decay. Muon decay almost always produces at least three particles, which must include an electron o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
