|
Odeillo Solar Furnace
The Odeillo solar furnace is the world's largest solar furnace. It is situated in Font-Romeu-Odeillo-Via, in the department of Pyrénées-Orientales, in the south of France. It is high and wide, and includes 63 heliostats. It was built between 1962 and 1968, started operating in 1969, and has a power of one megawatt. It serves as a science research site studying materials at very high temperatures. Geography It is situated in Font-Romeu-Odeillo-Via, in the department of Pyrénées-Orientales, region of Occitania, in south of France. The site was chosen because: * the length and the quality of sunshine with direct light (more than 2,500 h/year); * the purity of its atmosphere (high altitude and low average humidity). The solar power plant of Themis and the Mont-Louis Solar Furnace are situated nearby. Working principle The principle used is the concentration of rays by reflecting mirrors (9,600 of them). The solar rays are picked up by a first set of steerable mirrors l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Odeillo
Font-Romeu-Odeillo-Via (; ca, Font-romeu, Odelló i Vià), or simply Odeillo, is a commune in the Pyrénées-Orientales and Cerdagne near the Spanish border in the south of France. It comprises the villages of Odeillo and Via, as well as Font-Romeu, one of the oldest ski resorts in France and the oldest in the Pyrenees. Geography Localization Font-Romeu-Odeillo-Via is located in the canton of Les Pyrénées catalanes and in the arrondissement of Prades. It is bordered by the communes of Angoustrine-Villeneuve-des-Escaldes, Targasonne, Égat, Estavar, Saillagouse, Eyne and Bolquère. Transportation Font-Romeu-Odeillo-Via station is served by the Yellow Train line, a railway which runs from Villefranche-de-Conflent through to Latour-de-Carol. Toponymy The names of Odeillo and Via appear in 839 as ''parrochia Hodellone et parrochia Avizano''. Jean Sagnes (dir.), Le pays catalan, t. 2, Pau, Société nouvelle d'éditions régionales, 1985 The name ''Font-Romeu'' means ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Four En
4 (four) is a number, numeral and digit. It is the natural number following 3 and preceding 5. It is the smallest semiprime and composite number, and is considered unlucky in many East Asian cultures. In mathematics Four is the smallest composite number, its proper divisors being and . Four is the sum and product of two with itself: 2 + 2 = 4 = 2 x 2, the only number b such that a + a = b = a x a, which also makes four the smallest squared prime number p^. In Knuth's up-arrow notation, , and so forth, for any number of up arrows. By consequence, four is the only square one more than a prime number, specifically three. The sum of the first four prime numbers two + three + five + seven is the only sum of four consecutive prime numbers that yields an odd prime number, seventeen, which is the fourth super-prime. Four lies between the first proper pair of twin primes, three and five, which are the first two Fermat primes, like seventeen, which is the third. On the other hand, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Felix Trombe
Felix may refer to: * Felix (name), people and fictional characters with the name Places * Arabia Felix is the ancient Latin name of Yemen * Felix, Spain, a municipality of the province Almería, in the autonomous community of Andalusia, Spain * St. Felix, Prince Edward Island, a rural community in Prince County, Prince Edward Island, Canada. * Felix, Ontario, an unincorporated place and railway point in Northeastern Ontario, Canada * St. Felix, South Tyrol, a village in South Tyrol, in northern Italy. * Felix, California, an unincorporated community in Calaveras County Music * Felix (band), a British band * Felix (musician), British DJ * Félix Award, a Quebec music award named after Félix Leclerc Business * Felix (pet food), a brand of cat food sold in most European countries * AB Felix, a Swedish food company * Felix Bus Services of Derbyshire, England * Felix Airways, an airline based in Yemen Science and technology * Apache Felix, an open source OSGi framewo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Explosion
A nuclear explosion is an explosion that occurs as a result of the rapid release of energy from a high-speed nuclear reaction. The driving reaction may be nuclear fission or nuclear fusion or a multi-stage cascading combination of the two, though to date all fusion-based weapons have used a fission device to initiate fusion, and a pure fusion weapon remains a hypothetical device. Nuclear explosions are used in nuclear weapons and nuclear testing. Atmospheric nuclear explosions are associated with mushroom clouds, although mushroom clouds can occur with large chemical explosions. It is possible to have an air-burst nuclear explosion without those clouds. Nuclear explosions produce radiation and radioactive debris that is harmful to humans and can cause moderate to severe skin burns, eye damage, radiation sickness, radiation-induced cancer and possible death depending on how far from the blast radius a person is. Nuclear explosions can also have detrimental effects on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermal Radiation
Thermal radiation is electromagnetic radiation generated by the thermal motion of particles in matter. Thermal radiation is generated when heat from the movement of charges in the material (electrons and protons in common forms of matter) is converted to electromagnetic radiation. All matter with a temperature greater than absolute zero emits thermal radiation. At room temperature, most of the emission is in the infrared (IR) spectrum. Particle motion results in charge-acceleration or dipole oscillation which produces electromagnetic radiation. Infrared radiation emitted by animals (detectable with an infrared camera) and cosmic microwave background radiation are examples of thermal radiation. If a radiation object meets the physical characteristics of a black body in thermodynamic equilibrium, the radiation is called blackbody radiation. Planck's law describes the spectrum of blackbody radiation, which depends solely on the object's temperature. Wien's displacement law de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MIRV
A multiple independently targetable reentry vehicle (MIRV) is an exoatmospheric ballistic missile payload containing several warheads, each capable of being aimed to hit a different target. The concept is almost invariably associated with intercontinental ballistic missiles carrying thermonuclear warheads, even if not strictly being limited to them. By contrast, a unitary warhead is a single warhead on a single missile. An intermediate case is the multiple reentry vehicle (MRV) missile which carries several warheads which are dispersed but not individually aimed. Only the United States, the United Kingdom, France, Russia, China and India are currently confirmed to have deployed MIRV missile systems. Pakistan is developing MIRV missile systems. Israel is suspected to possess or be in the process of developing MIRVs. The first true MIRV design was the Minuteman III, first successfully tested in 1968 and introduced into actual use in 1970. The Minuteman III held three small ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radome
A radome (a portmanteau of radar and dome) is a structural, weatherproof enclosure that protects a radar antenna (radio), antenna. The radome is constructed of material transparent to radio waves. Radomes protect the antenna from weather and conceal antenna electronic equipment from view. They also protect nearby personnel from being accidentally struck by quickly rotating antennas. Radomes can be constructed in several shapes spherical, geodesic dome, geodesic, planar, etc. depending on the particular application, using various construction materials such as fiberglass, polytetrafluoroethylene, polytetrafluoroethylene (PTFE)-coated fabric, and others. When found on fixed-wing aircraft with forward-looking radar, as are commonly used for object or weather detection, the nose cones often additionally serve as radomes. On aircraft used for airborne early warning and control (AEW&C), a rotating radome, often called a "rotodome", is mounted on the top of the fuselage for 360-degr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parabole
{{Disambiguation ...
A parabola is a mathematical curve. Parabola or Parabole may also refer to: Arches * Parabolic arch Music * ''Parabola'' (album), an album by Gil Evans * "Parabola" (song), a song by Tool *"Parabola", a song by Jawbreaker from ''Bivouac'' Other uses * ''Parabola'' (magazine), a magazine published by The Society for the Study of Myth and Tradition * ''Parabola'' (moth), a genus of moth * Parabola (operating system), a GNU/Linux-libre distribution * Parabola Allegory, a Rosicrucian allegory attributed to Hinricus Madathanus See also * Parable * Parabola of safety In classical mechanics and ballistics, the parabola of safety or safety parabola is the envelope of the parabolic trajectories of projectiles shot from a certain point with a given speed at different angles to horizon in a fixed vertical plane. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mont-Louis Solar Furnace
The Mont-Louis Solar Furnace is an experimental solar furnace - a solar thermal energy facility that was built in 1949. It was the first facility of its kind in the world, and was a precursor of the Odeillo Solar Furnace. It provides a thermal power of 50 kW. History The French chemist Félix Trombe and his team made an initial demonstration of a mirror of DCA in Meudon in 1946 to show the possibility of reaching high temperatures very quickly using highly concentrated sunlight. The goal was to melt ore and extract very pure substances to make new and more effective refractory materials. In order to do further experiments, the first solar furnace was built in Mont-Louis in the Pyrénées-Orientales in 1949. Development and cooperation The Mont-Louis Solar Furnace is engaged in a process of technology transfer to the countries of the south; the city of Safi in Morocco is participating in this process. The aim is to install in villages, solar ovens that will cook pots, pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrénées-Orientales
Pyrénées-Orientales (; ca, Pirineus Orientals ; oc, Pirenèus Orientals ; ), also known as Northern Catalonia, is a department of the region of Occitania, Southern France, adjacent to the northern Spanish frontier and the Mediterranean Sea. It also surrounds the tiny Spanish exclave of Llívia, and thus has two distinct borders with Spain. In 2019, it had a population of 479,979.Populations légales 2019: 66 Pyrénées-Orientales INSEE Some parts of the Pyrénées-Orientales (like the ) are part of the . It is na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Themis (solar Power Plant)
The THEMIS solar power tower is a research and development centre focused on solar energy. It is located near the village of Targasonne, in the department of Pyrénées-Orientales, south of France, 3 kilometres from the world's largest solar furnace in Odeillo. Siting of the plant THEMIS solar power tower, owned by the General Council of the Pyrénées-Orientales, was strategically located in the region of Cerdanya, in the Pyrénées-Orientales, because the conditions are excellent for solar energy. First, Cerdanya has almost 2400 hours of sunshine a year; second, there is a very low wind limiting the time of disruption of the plant; third, the site is at a high elevation providing stronger sunlight. The land chosen for the plant is on a slope between 6° and 18°, which is suitable for a power tower. THEMIS research and development centre Research and development is focused on solar energy, and THEMIS is a research facility as well as a photovoltaic power facility ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Occitania (administrative Region)
Occitania ( ; french: Occitanie ; oc, Occitània ; ca, Occitània ) is the southernmost administrative region of metropolitan France excluding Corsica, created on 1 January 2016 from the former regions of Languedoc-Roussillon and Midi-Pyrénées. The Council of State approved Occitania as the new name of the region on 28 September 2016, coming into effect on 30 September 2016. The modern administrative region is named after the larger cultural and historical region of Occitania, which corresponds with the southern third of France. The region of Occitania as it is today covers a territory similar to that ruled by the Counts of Toulouse in the 12th and 13th centuries. The banner of arms of the Counts of Toulouse, known colloquially as the Occitan cross, is used by the modern region and is also a popular cultural symbol. In 2015, Occitania had a population of 5,839,867. Toponymy Enacted in 2014, the territorial reform of French regions had been subject to debate for many years. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
