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Christer Fuglesang
Arne Christer Fuglesang (born 18 March 1957) is a Swedish physicist and an ESA astronaut. He was first launched aboard the STS-116 Space Shuttle mission on 10 December 2006, making him the first Swedish citizen in space. Married with three children, he was a Fellow at CERN and taught mathematics at the Royal Institute of Technology before being selected to join the European Astronaut Corps in 1992. He has participated in two Space Shuttle missions and five spacewalks, and is the first person outside of the United States or Russian space programs to participate in more than three spacewalks. Early life and education Fuglesang was born in Stockholm to a Swedish mother and a Norwegian father, who became a Swedish citizen shortly before Fuglesang's birth. Fuglesang graduated from the Bromma Gymnasium, Stockholm in 1975, earned a master's degree in engineering physics from the Royal Institute of Technology (KTH), in Stockholm in 1981, and received a doctorate in experimental part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronaut
An astronaut (from the Ancient Greek (), meaning 'star', and (), meaning 'sailor') is a person trained, equipped, and deployed by a human spaceflight program to serve as a commander or crew member aboard a spacecraft. Although generally reserved for professional space travelers, the term is sometimes applied to anyone who travels into space, including scientists, politicians, journalists, and tourists. "Astronaut" technically applies to all human space travelers regardless of nationality. However, astronauts fielded by Russia or the Soviet Union are typically known instead as cosmonauts (from the Russian "kosmos" (космос), meaning "space", also borrowed from Greek). Comparatively recent developments in crewed spaceflight made by China have led to the rise of the term taikonaut (from the Mandarin "tàikōng" (), meaning "space"), although its use is somewhat informal and its origin is unclear. In China, the People's Liberation Army Astronaut Corps astronauts and their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extra-vehicular Activity
Extravehicular activity (EVA) is any activity done by an astronaut in outer space outside a spacecraft. In the absence of a breathable Earthlike atmosphere, the astronaut is completely reliant on a space suit for environmental support. EVA includes ''spacewalks'' and lunar or planetary surface exploration (commonly known from 1969 to 1972 as ''moonwalks''). In a stand-up EVA (SEVA), an astronaut stands through an open hatch but does not fully leave the spacecraft. EVA has been conducted by the Soviet Union/Russia, the United States, Canada, the European Space Agency and China. On March 18, 1965, Alexei Leonov became the first human to perform a spacewalk, exiting the Voskhod 2 capsule for 12 minutes and 9 seconds. On July 20, 1969, Neil Armstrong became the first human to perform a moonwalk, outside his lunar lander on Apollo 11 for 2 hours and 31 minutes. On the last three Moon missions, astronauts also performed deep-space EVAs on the return to Earth, to retrieve film canis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CPLEAR Experiment
The CPLEAR experiment used the antiproton beam of the LEAR facility - Low-Energy Antiproton Ring which operated at CERN from 1982 to 1996 - to produce neutral kaon''s'' through proton-antiproton annihilation in order to study '' CP'', '' T'' and '' CPT'' violation in the neutral kaon system. Background According to the theory of the Big Bang, matter and antimatter would have existed in the same amount at the beginning of the Universe. If this was true, particle''s'' and antiparticle''s'' would have annihilated each other, creating photon''s'', and thus the Universe would have been only compounded by light (one particle of matter for 1018 photons). However, only matter has remained and at a rate of one billion times more particles than expected. What happened then, for the antimatter to disappear in favor of matter? A possible answer to this question is baryogenesis, the hypothetical physical process that took place during the early universe that produced baryonic asymmetry, i.e. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antiproton
The antiproton, , (pronounced ''p-bar'') is the antiparticle of the proton. Antiprotons are stable, but they are typically short-lived, since any collision with a proton will cause both particles to be annihilated in a burst of energy. The existence of the antiproton with electric charge of , opposite to the electric charge of of the proton, was predicted by Paul Dirac in his 1933 Nobel Prize lecture. Dirac received the Nobel Prize for his 1928 publication of his Dirac equation that predicted the existence of positive and negative solutions to Einstein's energy equation (E = mc^2) and the existence of the positron, the antimatter analog of the electron, with opposite charge and spin. The antiproton was first experimentally confirmed in 1955 at the Bevatron particle accelerator by University of California, Berkeley physicists Emilio Segrè and Owen Chamberlain, for which they were awarded the 1959 Nobel Prize in Physics. In terms of valence quarks, an antiproton consists of two ... [...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 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 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 for "first", and this name was given to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UA5 Experiment
The UA5 experiment was the first experiment conducted at the Proton-Antiproton Collider (SpS), a collider using the infrastructure of the Super Proton Synchrotron (SPS). The experiment was approved in February 1979, as a collaboration between CERN and the universities of Bonn, Brussels, Cambridge and Stockholm. The spokesperson of the UA5 collaboration was John Rushbrooke. The object of the experiment was to investigate Centauro events and more generally to perform a first rapid visual survey of the energy region afforded by the then new SPS collider. Measurements were done on proton-antiproton collisions of 540 GeV center-of-mass energy, with the results being published in November 1983. Later, under the name of UA5/2, data was recorded from 900 GeV collisions. No indication of Centauro production was observed, but an upper limit on the production was obtained. The experimental setup consisted of two large streamer chambers which were placed above and below the SpS beam p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dagens Nyheter
''Dagens Nyheter'' (, ), abbreviated ''DN'', is a daily newspaper in Sweden. It is published in Stockholm and aspires to full national and international coverage, and is widely considered Sweden's newspaper of record. History and profile ''Dagens Nyheter'' was founded by Rudolf Wall in December 1864. The first issue was published on 23 December 1864. During its initial period the paper was published in the morning. In 1874 the paper became a joint stock company. Its circulation in 1880 was 15,000 copies. In the 1890s, Wall left ''Dagens Nyheter'' and soon after, the paper became the organ of the Liberal Party. From 1946 to 1959, Herbert Tingsten was the executive editor. The newspaper is owned by the Bonnier Group since 1909, when Karl Otto Bonnier acquired the remaining shares that his family had not owned (his father Albert had already acquired some shares since 1888). [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skepticism
Skepticism, also spelled scepticism, is a questioning attitude or doubt toward knowledge claims that are seen as mere belief or dogma. For example, if a person is skeptical about claims made by their government about an ongoing war then the person doubts that these claims are accurate. In such cases, skeptics normally recommend not disbelief but suspension of belief, i.e. maintaining a neutral attitude that neither affirms nor denies the claim. This attitude is often motivated by the impression that the available evidence is insufficient to support the claim. Formally, skepticism is a topic of interest in philosophy, particularly epistemology. More informally, skepticism as an expression of questioning or doubt can be applied to any topic, such as politics, religion, or pseudoscience. It is often applied within restricted domains, such as morality ( moral skepticism), atheism (skepticism about the existence of God), or the supernatural. Some theorists distinguish "good" or moder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Föreningen Vetenskap Och Folkbildning
Vetenskap och Folkbildning (Swedish: literal translation "Science and Popular Enlightenment", English: The Swedish Skeptics' Association), abbreviated as VoF, is a Swedish skeptics' association. It was founded in 1982 with the purpose to raise the general public's awareness of scientific methods and results. The association publishes the quarterly journal '' Folkvett'' and organises lectures on themes related to science and pseudoscience. Since 1987 the association has annually awarded prizes for " Enlightener of the Year" and " Misleader of the Year". Activities In 2010 the association had a membership above 2600. The current chairman is Pontus Böckman (who is also a co-host of The European Skeptics Podcast and a board member of the European Council of Skeptical Organisations), while Lina Hedman acts as vice-president. Other prominent members are professor of philosophy Sven Ove Hansson (chairman 1982–1988), professor of molecular cell biology Dan Larhammar (chairman 1998 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Née
A birth name is the name of a person given upon birth. The term may be applied to the surname, the given name, or the entire name. Where births are required to be officially registered, the entire name entered onto a birth certificate or birth register may by that fact alone become the person's legal name. The assumption in the Western world is often that the name from birth (or perhaps from baptism or '' brit milah'') will persist to adulthood in the normal course of affairs—either throughout life or until marriage. Some possible changes concern middle names, diminutive forms, changes relating to parental status (due to one's parents' divorce or adoption by different parents). Matters are very different in some cultures in which a birth name is for childhood only, rather than for life. Maiden and married names The French and English-adopted terms née and né (; , ) denote an original surname at birth. The term ''née'', having feminine grammatical gender, can be used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Docent
The title of docent is conferred by some European universities to denote a specific academic appointment within a set structure of academic ranks at or below the full professor rank, similar to a British readership, a French " ''maître de conférences''" (MCF), and equal to or above the title of " associate professor". Docent is also used at some (mainly German) universities generically for a person who has the right to teach. The term is derived from the Latin word ''docēns'', which is the present active participle of ''docēre'' (to teach, to lecture). Becoming a docent is often referred to as Habilitation or doctor of science and is an academic qualification that shows that the holder is qualified to be employed at the level of associate or full professor. Docent is the highest academic title in several countries, and the qualifying criteria are research output that corresponds to 3-5 doctoral dissertations, supervision of PhD students, and experience in teaching at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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