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Masoud Alimohammadi
Masoud Alimohammadi ( fa, مسعود علیمحمدی; 24 August 1959 – 12 January 2010) was an Iranian quantum field theorist and elementary-particle physicist and a distinguished professor of elementary particle physics at the University of Tehran's Department of Physics. Alimohammadi was the first PhD graduate student in physics of the Sharif University of Technology. He published some 53 articles and letters in peer-reviewed academic journals and wrote and translated several physics textbooks, including '' Modern Quantum Mechanics'', revised edition, by J. J. Sakurai, which he translated from English into Persian in collaboration with Hamidreza Moshfegh. On 12 January 2010 Alimohammadi was assassinated in front of his home in Tehran, while leaving for university. Majid Jamali Fashi was convicted of his killing and executed on 15 May 2012. According to ''Time'' magazine, Western intelligence confirmed that the confession of Majid Jamali Fashi was genuine. He stated th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imam Hossein University
The Imam Hossein Comprehensive University (also referred to as IHU or Imam Hossein University, fa, دانشگاه امام حسین, ''Dāneshgāh-e Emām Hosein'') is a public university located in Tehran, Iran. The university was opened in 1986, and is located in Babayi Expressway near Tehranpars and Hakimiyeh in northeastern Tehran. The university is affiliated with IRGC, Ministry of Science, Research and Technology (Iran), and Ministry of Defense and Armed Forces Logistics (Iran). It is sometimes referred to as "IHU". The university's official title is the ''Imam Hossein Comprehensive University'' (Persian: ''دانشگاه جامع امام حسین'', ''Dāneshgāh-e Jām-e Emām Hossein''). It is named after Imam Hossein, a grandson of the Islamic prophet, who was martyred in 680. IHU provides undergraduate and postgraduate programs in 15 departments. The student body consists of 6,000 students and cadets. The procedure for accepting and processing requests at IHU is d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tehran
Tehran (; fa, تهران ) is the largest city in Tehran Province and the capital of Iran. With a population of around 9 million in the city and around 16 million in the larger metropolitan area of Greater Tehran, Tehran is the most populous city in Iran and Western Asia, and has the second-largest metropolitan area in the Middle East, after Cairo. It is ranked 24th in the world by metropolitan area population. In the Classical era, part of the territory of present-day Tehran was occupied by Rhages, a prominent Median city destroyed in the medieval Arab, Turkic, and Mongol invasions. Modern Ray is an urban area absorbed into the metropolitan area of Greater Tehran. Tehran was first chosen as the capital of Iran by Agha Mohammad Khan of the Qajar dynasty in 1786, because of its proximity to Iran's territories in the Caucasus, then separated from Iran in the Russo-Iranian Wars, to avoid the vying factions of the previously ruling Iranian dynasties. The capital has been ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mossad
Mossad ( , ), ; ar, الموساد, al-Mōsād, ; , short for ( he, המוסד למודיעין ולתפקידים מיוחדים, links=no), meaning 'Institute for Intelligence and Special Operations'. is the national intelligence agency of Israel. It is one of the main entities in the Israeli Intelligence Community, along with Aman (military intelligence) and Shin Bet (internal security). Mossad is responsible for intelligence collection, covert operations, and counter-terrorism. Its director answers directly and only to the Prime Minister. Its annual budget is estimated to be around 10 billion shekels (US$2.73 billion) and it is estimated that it employs around 7,000 people directly, making it the one of the world's largest espionage agencies. Unlike other security bodies (such as the Israel Defense Forces or the Israel Security Agency), its purpose, objectives, roles, missions, powers or budget have not been defined in any law. History Mossad was formed on December 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christian Science Monitor
Christians () are people who follow or adhere to Christianity, a monotheistic Abrahamic religion based on the life and teachings of Jesus Christ. The words ''Christ'' and ''Christian'' derive from the Koine Greek title ''Christós'' (Χριστός), a translation of the Biblical Hebrew term ''mashiach'' (מָשִׁיחַ) (usually rendered as ''messiah'' in English). While there are diverse interpretations of Christianity which sometimes conflict, they are united in believing that Jesus has a unique significance. The term ''Christian'' used as an adjective is descriptive of anything associated with Christianity or Christian churches, or in a proverbial sense "all that is noble, and good, and Christ-like." It does not have a meaning of 'of Christ' or 'related or pertaining to Christ'. According to a 2011 Pew Research Center survey, there were 2.2 billion Christians around the world in 2010, up from about 600 million in 1910. Today, about 37% of all Christians live in the Amer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iran's Nuclear Program
The nuclear program of Iran is an ongoing scientific effort by Iran to research nuclear technology that can be used to make nuclear weapons. Iran has several research sites, two uranium mines, a research reactor, and uranium processing facilities that include three known uranium enrichment plants. Iran's nuclear program was launched in the 1950s with the help of the United States under the Atoms for Peace program, and in 1970, Iran ratified the Non-Proliferation Treaty (NPT), limiting its nuclear program to peaceful use, and making its nuclear program subject to inspection by the International Atomic Energy Agency (IAEA). Western cooperation ceased following the 1979 Iranian Revolution, after which Iran continued its nuclear program on a clandestine basis. In the 2000s, the revelation of Iran's clandestine uranium enrichment program raised concerns that the program might be intended for non-peaceful uses. The IAEA launched an investigation in 2003 after an Iranian dissident ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Power
Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced by nuclear ''fission'' of uranium and plutonium in nuclear power plants. Nuclear ''decay'' processes are used in niche applications such as radioisotope thermoelectric generators in some space probes such as ''Voyager 2''. Generating electricity from fusion power, ''fusion'' power remains the focus of international research. Most nuclear power plants use thermal reactors with enriched uranium in a Nuclear fuel cycle#Once-through nuclear fuel cycle, once-through fuel cycle. Fuel is removed when the percentage of neutron poison, neutron absorbing atoms becomes so large that a nuclear chain reaction, chain reaction can no longer be sustained, typically three years. It is then cooled for several years in on-site spent fuel pools before being tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Weapons
A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion reactions (thermonuclear bomb), producing a nuclear explosion. Both bomb types release large quantities of energy from relatively small amounts of matter. The first test of a fission ("atomic") bomb released an amount of energy approximately equal to . The first thermonuclear ("hydrogen") bomb test released energy approximately equal to . Nuclear bombs have had yields between 10 tons TNT (the W54) and 50 megatons for the Tsar Bomba (see TNT equivalent). A thermonuclear weapon weighing as little as can release energy equal to more than . A nuclear device no larger than a conventional bomb can devastate an entire city by blast, fire, and radiation. Since they are weapons of mass destruction, the proliferation of nuclear weapons is a focus of international relations policy. Nuclear weapons have been deployed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Engineering
Nuclear engineering is the branch of engineering concerned with the application of breaking down atomic nuclei ( fission) or of combining atomic nuclei (fusion), or with the application of other sub-atomic processes based on the principles of nuclear physics. In the sub-field of nuclear fission, it particularly includes the design, interaction, and maintenance of systems and components like reactors, power plants, or weaponry. The field also includes the study of medical and other applications of radiation, particularly Ionizing radiation, nuclear safety, heat/thermodynamics transport, nuclear fuel, or other related technology (e.g., radioactive waste disposal) and the problems of nuclear proliferation. This field also includes chemical engineering and electrical engineering. Professional areas The United States currently generates about 20% of its electricity from nuclear power plants. Nuclear engineers in this field generally work, directly or indirectly, in the nuclea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Physics
Nuclear physics is the field of physics that studies atomic nuclei and their constituents and interactions, in addition to the study of other forms of nuclear matter. Nuclear physics should not be confused with atomic physics, which studies the atom as a whole, including its electrons. Discoveries in nuclear physics have led to applications in many fields. This includes nuclear power, nuclear weapons, nuclear medicine and magnetic resonance imaging, industrial and agricultural isotopes, ion implantation in materials engineering, and radiocarbon dating in geology and archaeology. Such applications are studied in the field of nuclear engineering. Particle physics evolved out of nuclear physics and the two fields are typically taught in close association. Nuclear astrophysics, the application of nuclear physics to astrophysics, is crucial in explaining the inner workings of stars and the origin of the chemical elements. History The history of nuclear physics as a discipl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
String Theory
In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings. String theory describes how these strings propagate through space and interact with each other. On distance scales larger than the string scale, a string looks just like an ordinary particle, with its mass, charge, and other properties determined by the vibrational state of the string. In string theory, one of the many vibrational states of the string corresponds to the graviton, a quantum mechanical particle that carries the gravitational force. Thus, string theory is a theory of quantum gravity. String theory is a broad and varied subject that attempts to address a number of deep questions of fundamental physics. String theory has contributed a number of advances to mathematical physics, which have been applied to a variety of problems in black hole physics, early universe cosmology, nuclear physics, and conde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dark Energy
In physical cosmology and astronomy, dark energy is an unknown form of energy that affects the universe on the largest scales. The first observational evidence for its existence came from measurements of supernovas, which showed that the universe does not expand at a constant rate; rather, the universe's expansion is accelerating. Understanding the universe's evolution requires knowledge of its starting conditions and composition. Before these observations, scientists thought that all forms of matter and energy in the universe would only cause the expansion to slow down over time. Measurements of the cosmic microwave background (CMB) suggest the universe began in a hot Big Bang, from which general relativity explains its evolution and the subsequent large-scale motion. Without introducing a new form of energy, there was no way to explain how scientists could measure an accelerating universe. Since the 1990s, dark energy has been the most accepted premise to account for the acce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmology
Cosmology () is a branch of physics and metaphysics dealing with the nature of the universe. The term ''cosmology'' was first used in English in 1656 in Thomas Blount (lexicographer), Thomas Blount's ''Glossographia'', and in 1731 taken up in Latin by German philosophy, German philosopher Christian Wolff (philosopher), Christian Wolff, in ''Cosmologia Generalis''. Religious cosmology, Religious or mythological cosmology is a body of beliefs based on Mythology, mythological, Religion, religious, and Esotericism, esoteric literature and traditions of Cosmogony, creation myths and eschatology. In the science of astronomy it is concerned with the study of the chronology of the universe. Physical cosmology is the study of the observable universe's origin, its large-scale structures and dynamics, and the ultimate fate of the universe, including the laws of science that govern these areas. It is investigated by scientists, such as astronomers and physicists, as well as Philosophy, ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
