|
Emanoil Bacaloglu
Emanoil Bacaloglu (; – 30 August 1891) was a Wallachian and Romanian mathematician, physicist and chemist. Born in Bucharest and of Greek origin, he studied physics and mathematics in Paris and Leipzig, later becoming a professor at the University of Bucharest and, in 1879, a member of the Romanian Academy. Considered to be the founder of many scientific and technological fields in Romania (and aiding in the creation of the Romanian Athenaeum), Bacaloglu was also an accomplished scientist. He helped create Romanian-language terminology in his fields and was one of the principal founders of the Society of Physical Sciences in 1890. He was also a participant in the 1848 Wallachian revolution. He is known for the "Bacaloglu pseudosphere". This is a surface of revolution for which the "Bacaloglu curvature" is constant. Main works * ''Elemente de fizică'', 2nd ed., București, (1888). * ''Elemente de algebră'', 2nd ed., București, (1870). References * Florica Câmpan, "La p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emanoil Bacaloglu
Emanoil Bacaloglu (; – 30 August 1891) was a Wallachian and Romanian mathematician, physicist and chemist. Born in Bucharest and of Greek origin, he studied physics and mathematics in Paris and Leipzig, later becoming a professor at the University of Bucharest and, in 1879, a member of the Romanian Academy. Considered to be the founder of many scientific and technological fields in Romania (and aiding in the creation of the Romanian Athenaeum), Bacaloglu was also an accomplished scientist. He helped create Romanian-language terminology in his fields and was one of the principal founders of the Society of Physical Sciences in 1890. He was also a participant in the 1848 Wallachian revolution. He is known for the "Bacaloglu pseudosphere". This is a surface of revolution for which the "Bacaloglu curvature" is constant. Main works * ''Elemente de fizică'', 2nd ed., București, (1888). * ''Elemente de algebră'', 2nd ed., București, (1870). References * Florica Câmpan, "La p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudosphere
In geometry, a pseudosphere is a surface with constant negative Gaussian curvature. A pseudosphere of radius is a surface in \mathbb^3 having curvature in each point. Its name comes from the analogy with the sphere of radius , which is a surface of curvature . The term was introduced by Eugenio Beltrami in his 1868 paper on models of hyperbolic geometry. __TOC__ Tractroid The same surface can be also described as the result of revolving a tractrix about its asymptote. For this reason the pseudosphere is also called tractroid. As an example, the (half) pseudosphere (with radius 1) is the surface of revolution of the tractrix parametrized by :t \mapsto \left( t - \tanh, \operatorname\, \right), \quad \quad 0 \le t < \infty. It is a singular space (the equator is a singularity), but away from the singularities, it has constant negative |
1830 Births
Year 183 ( CLXXXIII) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Aurelius and Victorinus (or, less frequently, year 936 ''Ab urbe condita''). The denomination 183 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * An assassination attempt on Emperor Commodus by members of the Senate fails. Births * January 26 – Lady Zhen, wife of the Cao Wei state Emperor Cao Pi (d. 221) * Hu Zong, Chinese general, official and poet of the Eastern Wu state (d. 242) * Liu Zan (Zhengming), Chinese general of the Eastern Wu state (d. 255) * Lu Xun Zhou Shuren (25 September 1881 – 19 October 1936), better known by his pen name Lu Xun (or Lu Sun; ; Wade–Giles: Lu Hsün), was a Chinese writer, essayist, poet, and literary critic. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientists From Bucharest
A scientist is a person who conducts scientific research to advance knowledge in an area of the natural sciences. In classical antiquity, there was no real ancient analog of a modern scientist. Instead, philosophers engaged in the philosophical study of nature called natural philosophy, a precursor of natural science. Though Thales (circa 624-545 BC) was arguably the first scientist for describing how cosmic events may be seen as natural, not necessarily caused by gods,Frank N. Magill''The Ancient World: Dictionary of World Biography'', Volume 1 Routledge, 2003 it was not until the 19th century that the term ''scientist'' came into regular use after it was coined by the theologian, philosopher, and historian of science William Whewell in 1833. In modern times, many scientists have advanced degrees in an area of science and pursue careers in various sectors of the economy such as academia, industry, government, and nonprofit environments.'''' History The roles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Bucharest Faculty
A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. Universities typically offer both undergraduate and postgraduate programs. In the United States, the designation is reserved for colleges that have a graduate school. The word ''university'' is derived from the Latin ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". The first universities were created in Europe by Catholic Church monks. The University of Bologna (''Università di Bologna''), founded in 1088, is the first university in the sense of: *Being a high degree-awarding institute. *Having independence from the ecclesiastic schools, although conducted by both clergy and non-clergy. *Using the word ''universitas'' (which was coined at its foundation). *Issuing secular and non-secular degrees: grammar, rhetoric, logic, theology, canon law, notarial law.Hunt Janin: "The university in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People Of The Revolutions Of 1848
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] |
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] |
Romanian Chemists
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 The folklore of Romania is the collection of traditions of the Romanians. A feature of Romanian culture is the special relationship between folklore and the learned culture, determined by two factors. First, the rural character of the Romanian ... * Romanian (stage), a stage in the Paratethys 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 Physicists
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 The folklore of Romania is the collection of traditions of the Romanians. A feature of Romanian culture is the special relationship between folklore and the learned culture, determined by two factors. First, the rural character of the Romanian ... * Romanian (stage), a stage in the Paratethys 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] |
19th-century Romanian Mathematicians
The 19th (nineteenth) century began on 1 January 1801 ( MDCCCI), and ended on 31 December 1900 ( MCM). The 19th century was the ninth century of the 2nd millennium. The 19th century was characterized by vast social upheaval. Slavery was abolished in much of Europe and the Americas. The First Industrial Revolution, though it began in the late 18th century, expanding beyond its British homeland for the first time during this century, particularly remaking the economies and societies of the Low Countries, the Rhineland, Northern Italy, and the Northeastern United States. A few decades later, the Second Industrial Revolution led to ever more massive urbanization and much higher levels of productivity, profit, and prosperity, a pattern that continued into the 20th century. The Islamic gunpowder empires fell into decline and European imperialism brought much of South Asia, Southeast Asia, and almost all of Africa under colonial rule. It was also marked by the collapse of the large S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_-_09.JPG "Click for more on -> University Of Bucharest Faculty")
_1938.jpg "Click for more on -> People Of The Revolutions Of 1848")
