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Nicolae Teclu
Nicolae Teclu (); (11 October 1839, Kronstadt, Austrian Empire (today Brașov, Romania) – 13 July 1916, Vienna, Austria-Hungary) was a Romanian chemist, who gave his name to the worldwide-used "Teclu burner". He studied engineering and architecture, and then chemistry, continuing his career by becoming professor for general and analytical chemistry in Vienna. He also contributed substantially to the worldwide development of chemistry. Biography He studied chemistry at the Vienna Polytechnic Institute and later changed to architecture at the Academy of Fine Arts in Munich. After a short time in Romania he went back to Vienna becoming a professor for general and analytical chemistry in Vienna. In 1892 he published his invention of the gas burner with a mechanism to control the respective amounts of methane gas and air. His burner produces a hotter flame than the Bunsen Burner, thus making it superior. The usage of Teclu burners is very common not only in Romania, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alkanes
In organic chemistry, an alkane, or paraffin (a historical trivial name that also has other meanings), is an acyclic saturated hydrocarbon. In other words, an alkane consists of hydrogen and carbon atoms arranged in a tree structure in which all the carbon–carbon bonds are single. Alkanes have the general chemical formula . The alkanes range in complexity from the simplest case of methane (), where ''n'' = 1 (sometimes called the parent molecule), to arbitrarily large and complex molecules, like pentacontane () or 6-ethyl-2-methyl-5-(1-methylethyl) octane, an isomer of tetradecane (). The International Union of Pure and Applied Chemistry (IUPAC) defines alkanes as "acyclic branched or unbranched hydrocarbons having the general formula , and therefore consisting entirely of hydrogen atoms and saturated carbon atoms". However, some sources use the term to denote ''any'' saturated hydrocarbon, including those that are either monocyclic (i.e. the cycloalkanes) or po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romanian Austro-Hungarians
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 pa ... 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] |
Chemists From Austria-Hungary
A chemist (from Greek ''chēm(ía)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties. Chemists carefully describe the properties they study in terms of quantities, with detail on the level of molecules and their component atoms. Chemists carefully measure substance proportions, chemical reaction rates, and other chemical properties. In Commonwealth English, pharmacists are often called chemists. Chemists use their knowledge to learn the composition and properties of unfamiliar substances, as well as to reproduce and synthesize large quantities of useful naturally occurring substances and create new artificial substances and useful processes. Chemists may specialize in any number of subdisciplines of chemistry. Materials scientists and metallurgists share much of the same education and skills with chemists. The work of chemists is often related to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Titular Members Of The Romanian Academy
Titular may refer to: Arts, entertainment, and media * Title character in a narrative work, the character referred to in its title Religion * Titular (Catholicism), a cardinal who holds a titulus, one of the main churches of Rome ** Titular bishop, a bishop who is not in charge of a diocese ** Titular church, a church in Rome assigned or assignable to one of the cardinals ** Titular see, an episcopal see of a former diocese that no longer functions Other uses * Titular nation, the single dominant ethnic group in the state, typically after which the state was named * Titular ruler, a person in an official position of leadership who possesses few, if any, actual powers * Pretender See also * *Nominal (other) *Titulus (other) Titulus, the Latin word for "title", "label" or "inscription" (plural ''tituli'', normally italicized), may or may not be italicized as a foreign word, and may refer to: * ''Titulus'', or Titular church, one of a group of Early Christian chu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People From Brașov
A person ( : people) is a being that has certain capacities or attributes such as reason, morality, consciousness or self-consciousness, and being a part of a culturally established form of social relations such as kinship, ownership of property, or legal responsibility. The defining features of personhood and, consequently, what makes a person count as a person, differ widely among cultures and contexts. In addition to the question of personhood, of what makes a being count as a person to begin with, there are further questions about personal identity and self: both about what makes any particular person that particular person instead of another, and about what makes a person at one time the same person as they were or will be at another time despite any intervening changes. The plural form "people" is often used to refer to an entire nation or ethnic group (as in "a people"), and this was the original meaning of the word; it subsequently acquired its use as a plural form of per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1916 Deaths
Events Below, the events of the First World War have the "WWI" prefix. January * January 1 – The British Royal Army Medical Corps carries out the first successful blood transfusion, using blood that had been stored and cooled. * January 9 – WWI: Gallipoli Campaign: The last British troops are evacuated from Gallipoli, as the Ottoman Empire prevails over a joint British and French operation to capture Constantinople. * January 10 – WWI: Erzurum Offensive: Russia defeats the Ottoman Empire. * January 12 – The Gilbert and Ellice Islands Colony, part of the British Empire, is established in present-day Tuvalu and Kiribati. * January 13 – WWI: Battle of Wadi: Ottoman Empire forces defeat the British, during the Mesopotamian campaign in modern-day Iraq. * January 29 – WWI: Paris is bombed by German zeppelins. * January 31 – WWI: An attack is planned on Verdun, France. February * February 9 – 6.00 p.m. – Tristan Tz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1839 Births
Events January–March * January 2 – The first photograph of the Moon is taken, by French photographer Louis Daguerre. * January 6 – Night of the Big Wind: Ireland is struck by the most damaging cyclone in 300 years. * January 9 – The French Academy of Sciences announces the daguerreotype photography process. * January 19 – British forces capture Aden. * January 20 – Battle of Yungay: Chile defeats the Peru–Bolivian Confederation, leading to the restoration of an independent Peru. * January – The first parallax measurement of the distance to Alpha Centauri is published by Thomas Henderson. * February 11 – The University of Missouri is established, becoming the first public university west of the Mississippi River. * February 24 – William Otis receives a patent for the steam shovel. * March 5 – Longwood University is founded in Farmville, Virginia. * March 7 – Baltimore City College, the third public high school in the United States, is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romanian Academy
The Romanian Academy ( ro, Academia Română ) is a cultural forum founded in Bucharest, Romania, in 1866. It covers the scientific, artistic and literary domains. The academy has 181 active members who are elected for life. According to its bylaws, the academy's main goals are the cultivation of Romanian language and Romanian literature, the study of the national history of Romania and research into major scientific domains. Some of the academy's fundamental projects are the Romanian language dictionary (''Dicționarul explicativ al limbii române''), the dictionary of Romanian literature, and the treatise on the history of the Romanian people. History On the initiative of C. A. Rosetti, the Academy was founded on April 1, 1866, as ''Societatea Literară Română''. The founding members were illustrious members of the Romanian society of the age. The name changed to ''Societatea Academică Romînă'' in 1867, and finally to ''Academia Română'' in 1879, during the reign of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ozone
Ozone (), or trioxygen, is an inorganic molecule with the chemical formula . It is a pale blue gas with a distinctively pungent smell. It is an allotrope of oxygen that is much less stable than the diatomic allotrope , breaking down in the lower atmosphere to (dioxygen). Ozone is formed from dioxygen by the action of ultraviolet (UV) light and electrical discharges within the Earth's atmosphere. It is present in very low concentrations throughout the latter, with its highest concentration high in the ozone layer of the stratosphere, which absorbs most of the Sun's ultraviolet (UV) radiation. Ozone's odour is reminiscent of chlorine, and detectable by many people at concentrations of as little as in air. Ozone's O3 structure was determined in 1865. The molecule was later proven to have a bent structure and to be weakly diamagnetic. In standard conditions, ozone is a pale blue gas that condenses at cryogenic temperatures to a dark blue liquid and finally a violet-black soli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methane
Methane ( , ) is a chemical compound with the chemical formula (one carbon atom bonded to four hydrogen atoms). It is a group-14 hydride, the simplest alkane, and the main constituent of natural gas. The relative abundance of methane on Earth makes it an economically attractive fuel, although capturing and storing it poses technical challenges due to its gaseous state under normal conditions for temperature and pressure. Naturally occurring methane is found both below ground and under the seafloor and is formed by both geological and biological processes. The largest reservoir of methane is under the seafloor in the form of methane clathrates. When methane reaches the surface and the atmosphere, it is known as atmospheric methane. The Earth's atmospheric methane concentration has increased by about 150% since 1750, and it accounts for 20% of the total radiative forcing from all of the long-lived and globally mixed greenhouse gases. It has also been detected on other plane ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Bucharest
The University of Bucharest ( ro, Universitatea din București), commonly known after its abbreviation UB in Romania, is a public university founded in its current form on by a decree of Prince Alexandru Ioan Cuza to convert the former Princely Academy into the current University of Bucharest, making one of the oldest modern Romanian universities. It is one of the five members of the ''Universitaria Consortium'' (the group of elite Romanian universities). The University of Bucharest offers study programmes in Romanian and English and is classified as an ''advanced research and education university'' by the Ministry of Education. In the 2012 QS World University Rankings, it was included in the top 700 universities of the world, together with three other Romanian universities. History The University of Bucharest was founded by the Decree no. 765 of 4 July 1864 by Alexandru Ioan Cuza and is a leading academic centre and a significant point of reference in society. The Unive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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