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Alexandru Ciurcu
Alexandru N. Ciurcu (29 January 1854, Şercaia – 22 January 1922, Bucharest) was a Romanian inventor and publisher, known for his invention with the French journalist of a reaction engine. It used rocket propulsion and was briefly used to power a boat, demonstrated on 13 August 1886. The two men envisioned that such motors would later be used for air travel. On 16 December 1886, during a test with a new second engine for the boat at Asnières, the engine exploded. Just Buisson and an assistant at the helm were killed. Ciurcu survived by swimming ashore, but at first was accused of murder. Origin One of his cousins was the doctor Sterie N. Ciurcu, who obtained his doctorate in 1877 in Vienna and who worked in Vienna since 1886. A recognized militant for the national cause of the Romanians in the empire and editor of some Romanian magazines , was imprisoned by the Habsburg authorities in 1916, when Romania entered the war, and died in prison. He was decorated with the Order ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexandru Ciurcu Postcard 1911
Alexandru is the Romanian form of the name Alexander. Common diminutives are Alecu, Alex, and Sandu. Origin Etymologically, the name is derived from the Greek "Αλέξανδρος" (Aléxandros), meaning "defending men" or "protector of men", a compound of the verb "ἀλέξω" (alexō), "to ward off, to avert, to defend" and the noun "ἀνδρός" (andros), genitive of "ἀνήρ" (anēr), "man". It is an example of the widespread motif of Greek (or Indo-European more generally) names expressing "battle-prowess", in this case the ability to withstand or push back an enemy battle line. The earliest attested form of the name is the Mycenaean Greek feminine noun ''a-re-ka-sa-da-ra'', (transliterated as '' Alexandra''), written in Linear B syllabic script. The name was one of the titles ("epithets") given to the Greek goddess Hera and as such is usually taken to mean "one who comes to save warriors". In the Iliad, the character Paris is known also as Alexander. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romanian Scientists
Romanian may refer to: *anything of, from, or related to the country and nation of Romania **Romanians, an ethnic group **Romanian language, a Romance language ***Romanian dialects, variants of the Romanian language **Romanian cuisine, traditional foods ** Romanian folklore *Romanian (stage), a stage in the Paratethys The Paratethys sea, Paratethys ocean, Paratethys realm or just Paratethys was a large shallow inland sea that stretched from the region north of the Alps over Central Europe to the Aral Sea in Central Asia. Paratethys was peculiar due to its p ... stratigraphy of Central and Eastern Europe *'' The Romanian'' newspaper *'' The Romanian: Story of an Obsession'', a 2004 novel by Bruce Benderson * * {{disambiguation Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romanian Inventors
Romanian may refer to: *anything of, from, or related to the country and nation of Romania **Romanians, an ethnic group **Romanian language, a Romance language ***Romanian dialects, variants of the Romanian language **Romanian cuisine, traditional foods ** Romanian folklore *Romanian (stage), a stage in the Paratethys The Paratethys sea, Paratethys ocean, Paratethys realm or just Paratethys was a large shallow inland sea that stretched from the region north of the Alps over Central Europe to the Aral Sea in Central Asia. Paratethys was peculiar due to its p ... stratigraphy of Central and Eastern Europe *'' The Romanian'' newspaper *'' The Romanian: Story of an Obsession'', a 2004 novel by Bruce Benderson * * {{disambiguation Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Vienna
The University of Vienna (german: Universität Wien) is a public research university located in Vienna, Austria. It was founded by Duke Rudolph IV in 1365 and is the oldest university in the German-speaking world. With its long and rich history, the university has developed into one of the largest universities in Europe, and also one of the most renowned, especially in the Humanities. It is associated with 21 Nobel prize winners and has been the academic home to many scholars of historical as well as of academic importance. History From the Middle Ages to the Enlightenment The university was founded on March 12, 1365, by Rudolf IV, Duke of Austria, hence the name "Alma Mater Rudolphina". After the Charles University in Prague and Jagiellonian University in Kraków, the University of Vienna is the third oldest university in Central Europe and the oldest university in the contemporary German-speaking world; it remains a question of definition as the Charles University in Pra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order Of The Crown (Romania)
The Order of the Crown of Romania is a chivalric order set up on 14 March 1881 by King Carol I of Romania to commemorate the establishment of the Kingdom of Romania. It was awarded as a state order until the end of the Romanian monarchy in 1947. It was revived on 30 December 2011 as a dynastic order. Classes The order had five classes, most of them with limited numbers: * Grand Cross (limited to 25) * Grand Officer (limited to 80) * Commander (limited to 150) * Officer (limited to 300) * Knight (unlimited numbers) Insignia Decoration The religious character of the model of 1881 is a red-enamelled, eight-pointed Maltese Cross with wider margin of gold and white. In the angles of the cross were "C"s, the initials of the founder. The medallion in the middle of the cross shows a royal crown on dark red background. The medallion is surrounded by a white-frost edge surrounded the inscription PRIN NOI INSINE (by ourselves) and the order's foundation date of 14 March 1881. On the ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Nature
''La Nature'' (English: ''Nature'') was a French language magazine aimed at the popularization of science established in 1873 by French scientist and adventurer Gaston Tissandier. The magazine also received an enormous amount of time, effort, and contributions from his brother, Albert Tissandier. Evolution The beginning From 1873 to 1914, each year's volume started at the beginning of December. The second six-month period began with the first issue in June. Starting in 1915, ''La Natures publishing year was brought in sync with the calendar year. A weekly magazine until the 1920s, it became first fortnightly and then monthly in 1948. Second World War During the Second World War, ''La Nature'' was published only erratically. The first interruption in publishing lasted from September 15 to December 15, 1939, with only an additional six issues published during all of 1940. 1941 saw 12 issues published, on the 15th of each month. There were other suspensions in publicatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asnières-sur-Seine
Asnières-sur-Seine () is a commune in the Hauts-de-Seine department and Île-de-France region of north-central France. It lies on the left bank of the river Seine, some eight kilometres from the centre of Paris in the north-western suburbs of the French capital. The inhabitants are called the ''Asniérois'' and the ''Asniéroises'' in French. Name Asnières-sur-Seine was originally known simply as Asnières. The name was recorded for the first time in a papal bull of 1158 – as ''Asnerias'', from Medieval Latin ''asinaria'', meaning "donkey farm". The poor soil of Asnières, where heather grew in medieval times, was probably deemed suitable only for the breeding of donkeys. By the early 20th century it had become a favourite boating centre for Parisians, and its industries included boat building. On 15 February 1968 the commune was officially renamed Asnières-sur-Seine to distinguish it from other French communes also called Asnières. Demographics Immigration Dep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rocket Engine
A rocket engine uses stored rocket propellants as the reaction mass for forming a high-speed propulsive jet of fluid, usually high-temperature gas. Rocket engines are reaction engines, producing thrust by ejecting mass rearward, in accordance with Newton's third law. Most rocket engines use the combustion of reactive chemicals to supply the necessary energy, but non-combusting forms such as cold gas thrusters and nuclear thermal rockets also exist. Vehicles propelled by rocket engines are commonly called rockets. Rocket vehicles carry their own oxidiser, unlike most combustion engines, so rocket engines can be used in a vacuum to propel spacecraft and ballistic missiles. Compared to other types of jet engine, rocket engines are the lightest and have the highest thrust, but are the least propellant-efficient (they have the lowest specific impulse). The ideal exhaust is hydrogen, the lightest of all elements, but chemical rockets produce a mix of heavier species, reducin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reaction Engine
A reaction engine is an engine or motor that produces thrust by expelling reaction mass, in accordance with Newton's third law of motion. This law of motion is commonly paraphrased as: "For every action force there is an equal, but opposite, reaction force." Examples include jet engines, rocket engines, pump-jets, and more uncommon variations such as Hall effect thrusters, ion drives, mass drivers, and nuclear pulse propulsion. Discovery The discovery of the reaction engine has been attributed to the Romanian inventor Alexandru Ciurcu and to the French journalist . Energy use Propulsive efficiency For all reaction engines that carry on-board propellant (such as rocket engines and electric propulsion drives) some energy must go into accelerating the reaction mass. Every engine wastes some energy, but even assuming 100% efficiency, the engine needs energy amounting to :\begin \frac \end MV_e^2 (where M is the mass of propellent expended and V_e is the exhaust velocity) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Publisher
Publishing is the activity of making information, literature, music, software and other content available to the public for sale or for free. Traditionally, the term refers to the creation and distribution of printed works, such as books, newspapers, and magazines. With the advent of digital information systems, the scope has expanded to include electronic publishing such as ebooks, academic journals, micropublishing, websites, blogs, video game publishing, and the like. Publishing may produce private, club, commons or public goods and may be conducted as a commercial, public, social or community activity. The commercial publishing industry ranges from large multinational conglomerates such as Bertelsmann, RELX, Pearson and Thomson Reuters to thousands of small independents. It has various divisions such as trade/retail publishing of fiction and non-fiction, educational publishing (k-12) and academic and scientific publishing. Publishing is also undertaken by governmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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