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2009 Norwegian Spiral Anomaly
The Norwegian spiral anomaly of 2009 (, "the spiral-form light pattern", ''det spiralformede lysfenomenet'', "the spiral-form light phenomenon") was a light phenomenon that appeared in the night sky over Norway in the morning of 9 December 2009. It was visible from, and photographed from, northern Norway and Sweden. The spiral consisted of a blue beam of light with a greyish spiral emanating from one end of it. The light could be seen in all of Trøndelag to the south (the two red counties on the map to the right) and all across the three northern counties which compose Northern Norway, as well as from Northern Sweden and it lasted for 10 minutes. According to sources, it looked like a blue light coming from behind a mountain, stopping in mid-air, and starting to spiral outwards. A similar, though less spectacular event had also occurred in Norway the month before. Both events had visual features of failed flights of Russian RSM-56 Bulava SLBMs, and the Russian Defence Ministry sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aurora (astronomy)
An aurora ( aurorae or auroras), also commonly known as the northern lights (aurora borealis) or southern lights (aurora australis), is a natural light display in Earth's sky, predominantly observed in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of radiant lights that appear as curtains, rays, spirals or dynamic flickers covering the entire sky. Auroras are the result of disturbances in the Earth's magnetosphere caused by enhanced speeds of solar wind from coronal holes and coronal mass ejections. These disturbances alter the trajectories of charged particles in the magnetospheric plasma. These particles, mainly electrons and protons, precipitate into the upper atmosphere ( thermosphere/exosphere). The resulting ionization and excitation of atmospheric constituents emit light of varying color and complexity. The form of the aurora, occurring within bands around both polar regions, is also dependent on the amount of accelera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harvard–Smithsonian Center For Astrophysics
The Center for Astrophysics , Harvard & Smithsonian (CfA), previously known as the Harvard–Smithsonian Center for Astrophysics, is an astrophysics research institute jointly operated by the Harvard College Observatory and Smithsonian Astrophysical Observatory. Founded in 1973 and headquartered in Cambridge, Massachusetts, United States, the CfA leads a broad program of research in astronomy, astrophysics, Earth and space sciences, as well as science education. The CfA either leads or participates in the development and operations of more than fifteen ground- and space-based astronomical research observatories across the electromagnetic spectrum, including the forthcoming Giant Magellan Telescope (GMT) and the Chandra X-ray Observatory, one of NASA's Great Observatories. Hosting more than 850 scientists, engineers, and support staff, the CfA is among the largest astronomical research institutes in the world. Its projects have included Nobel Prize-winning advances in cosmolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jonathan McDowell
Jonathan Christopher McDowell (born 1960) is a British-American astronomer and astrophysicist who works at the Harvard–Smithsonian Center for Astrophysics's Chandra X-ray Center. McDowell is the author and editor of Jonathan's Space Report, an e-mail-distributed newsletter documenting satellite launches. Education and career McDowell has a BA in Mathematics (1981) from Churchill College and a PhD in Astrophysics (1986) from the Institute of Astronomy, both at the University of Cambridge, England. After high school, McDowell worked for six months at the Royal Observatory, Greenwich and held a summer job at the Royal Observatory, Edinburgh before he began his PhD studies. His first post-doctoral position was at Jodrell Bank Observatory followed by another at the Center for Astrophysics Harvard & Smithsonian in Cambridge, Massachusetts. McDowell then moved to Huntsville, Alabama, where he spent a year at NASA's Marshall Space Flight Center. In 1992, McDowell returned to Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pavel Felgenhauer
Pavel Eugenievich Felgenhauer (; born 6 December 1951) is a Russian military analyst known for his publications about Russia's political and military leadership. Biography Felgenhauer was born in 1951 in Moscow, the Soviet Union and graduated from Moscow State University as a biologist in 1975. He served as a researcher and senior research officer in the Soviet Academy of Sciences (Moscow) and received his Candidate of Sciences degree in biology from the Academy in 1988. He is based in Moscow. His stepdaughter, Tatyana Felgenhauer, is a journalist and presenter at the Echo of Moscow (defunct as of 2022). Felgenhauer published numerous articles on topics dealing with Russian foreign and defense policies, military doctrine, arms trade, military-industrial complex and so on. From January 1991 until January 1993, he was associated with the ''Nezavisimaya Gazeta'' (Moscow) as defense analyst and defense correspondent. From February 1993 till September 1999, Felgenhauer was a membe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clara Moskowitz
Clara Moskowitz is an American science journalist who works as a senior editor for ''Scientific American''. Career Moskowitz majored in astronomy and physics at Wesleyan University, graduating in 2005. She went to the University of California, Santa Cruz for a master's degree in science communication, which she completed in 2007 after internships with the American Museum of Natural History and ''Discover'' magazine. After five years covering Space Shuttle missions for Space.com, she moved to her present position at ''Scientific American'' in 2014. Recognition In December 2015, the American Physical Society named her Woman Physicist of the Month. Publications * "Marie Curie's Hidden Network: How she recruited a genration of women scientists", ''Scientific American ''Scientific American'', informally abbreviated ''SciAm'' or sometimes ''SA'', is an American popular science magazine. Many scientists, including Albert Einstein and Nikola Tesla, have contributed articles to i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Missile
A missile is an airborne ranged weapon capable of self-propelled flight aided usually by a propellant, jet engine or rocket motor. Historically, 'missile' referred to any projectile that is thrown, shot or propelled towards a target; this usage is still recognized today with any unguided jet- or rocket-propelled weapons generally described as rocket artillery. Airborne explosive devices without propulsion are referred to as shells if fired by an artillery piece and bombs if dropped by an aircraft. Missiles are also generally guided towards specific targets termed as guided missiles or guided rockets. Missile systems usually have five system components: targeting, guidance system, flight system, engine, and warhead. Missiles are primarily classified into different types based on firing source and target such as surface-to-surface, air-to-surface, surface-to-air and air-to-air missiles. Terminology Missile is derived from Latin "missilis" meaning "that may be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
News
News is information about current events. This may be provided through many different Media (communication), media: word of mouth, printing, Mail, postal systems, broadcasting, Telecommunications, electronic communication, or through the testimony of Witness, observers and witnesses to events. News is sometimes called "hard news" to differentiate it from soft media. Subject matters for news reports include war, government, politics, education, health, economy, business, fashion, sport, entertainment, and the Climate change, environment, as well as quirky or unusual events. Government proclamations, concerning Monarchy, royal ceremonies, laws, taxes, public health, and Crime, criminals, have been dubbed news since ancient times. Technology, Technological and Social change, social developments, often driven by government communication and espionage networks, have increased the speed with which news can spread, as well as influenced its content. Throughout history, people have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Switzerland
Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland is geographically divided among the Swiss Plateau, the Swiss Alps, Alps and the Jura Mountains, Jura; the Alps occupy the greater part of the territory, whereas most of the country's Demographics of Switzerland, 9 million people are concentrated on the plateau, which hosts List of cities in Switzerland, its largest cities and economic centres, including Zurich, Geneva, and Lausanne. Switzerland is a federal republic composed of Cantons of Switzerland, 26 cantons, with federal authorities based in Bern. It has four main linguistic and cultural regions: German, French, Italian and Romansh language, Romansh. Although most Swiss are German-speaking, national identity is fairly cohesive, being rooted in a common historical background, shared ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Large Hadron Collider
The Large Hadron Collider (LHC) is the world's largest and highest-energy particle accelerator. It was built by the CERN, European Organization for Nuclear Research (CERN) between 1998 and 2008, in collaboration with over 10,000 scientists, and hundreds of universities and laboratories across more than 100 countries. It lies in a tunnel in circumference and as deep as beneath the France–Switzerland border near Geneva. The first collisions were achieved in 2010 at an energy of 3.5 tera-electronvolts (TeV) per beam, about four times the previous world record. The discovery of the Higgs boson at the LHC was announced in 2012. Between 2013 and 2015, the LHC was shut down and upgraded; after those upgrades it reached 6.5 TeV per beam (13.0 TeV total collision energy). At the end of 2018, it was shut down for maintenance and further upgrades, and reopened over three years later in April 2022. The collider has four crossing points where the accelerated particles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Particle Physics
Particle physics or high-energy physics is the study of Elementary particle, fundamental particles and fundamental interaction, forces that constitute matter and radiation. The field also studies combinations of elementary particles up to the scale of protons and neutrons, while the study of combinations of protons and neutrons is called nuclear physics. The fundamental particles in the universe are classified in the Standard Model as fermions (matter particles) and bosons (force-carrying particles). There are three Generation (particle physics), generations of fermions, although ordinary matter is made only from the first fermion generation. The first generation consists of Up quark, up and down quarks which form protons and neutrons, and electrons and electron neutrinos. The three fundamental interactions known to be mediated by bosons are electromagnetism, the weak interaction, and the strong interaction. Quark, Quarks cannot exist on their own but form hadrons. Hadrons that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
