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Amedeo Avogadro
Lorenzo Romano Amedeo Carlo Avogadro, Count of Quaregna and Cerreto (, also , ; 9 August 17769 July 1856) was an Italian scientist, most noted for his contribution to molecular theory now known as Avogadro's law, which states that equal volumes of gases under the same conditions of temperature and pressure will contain equal numbers of molecules. In tribute to him, the ratio of the number of elementary entities ( atoms, molecules, ions or other particles) in a substance to its amount of substance (the latter having the unit mole), , is known as the Avogadro constant. This constant is denoted ''N''A, and is one of the seven defining constants of the SI. Biography Amedeo Avogadro was born in Turin to a noble family of the Kingdom of Sardinia (now part of Italy) in the year 1776. He graduated in ecclesiastical law at the late age of 20 and began to practice. Soon after, he dedicated himself to physics and mathematics (then called ''positive philosophy''), and in 1809 sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turin
Turin ( , Piedmontese: ; it, Torino ) is a city and an important business and cultural centre in Northern Italy. It is the capital city of Piedmont and of the Metropolitan City of Turin, and was the first Italian capital from 1861 to 1865. The city is mainly on the western bank of the Po River, below its Susa Valley, and is surrounded by the western Alpine arch and Superga Hill. The population of the city proper is 847,287 (31 January 2022) while the population of the urban area is estimated by Eurostat to be 1.7 million inhabitants. The Turin metropolitan area is estimated by the OECD to have a population of 2.2 million. The city used to be a major European political centre. From 1563, it was the capital of the Duchy of Savoy, then of the Kingdom of Sardinia ruled by the House of Savoy, and the first capital of the Kingdom of Italy from 1861 to 1865. Turin is sometimes called "the cradle of Italian liberty" for having been the political and intellectual centre of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amount Of Substance
In chemistry, the amount of substance ''n'' in a given sample of matter is defined as the quantity or number of discrete atomic-scale particles in it divided by the Avogadro constant ''N''A. The particles or entities may be molecules, atoms, ions, electrons, or other, depending on the context, and should be specified (e.g. amount of sodium chloride ''n''NaCl). The value of the Avogadro constant ''N''A has been defined as . The mole (symbol: mol) is a unit of amount of substance in the International System of Units, defined (since 2019) by fixing the Avogadro constant at the given value.Bureau International des Poids et Mesures (2019): The International System of Units (SI)', 9th edition, English version, p. 134. Available at thBIPM website Sometimes, the amount of substance is referred to as the chemical amount. Role of amount of substance and its unit mole in chemistry Historically, the mole was defined as the amount of substance in 12 grams of the carbon-12 isotope. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metric System
The metric system is a system of measurement that succeeded the decimalised system based on the metre that had been introduced in France in the 1790s. The historical development of these systems culminated in the definition of the International System of Units (SI) in the mid-20th century, under the oversight of an international standards body. Adopting the metric system is known as ''metrication''. The historical evolution of metric systems has resulted in the recognition of several principles. Each of the fundamental dimensions of nature is expressed by a single base unit of measure. The definition of base units has increasingly been realised from natural principles, rather than by copies of physical artefacts. For quantities derived from the fundamental base units of the system, units derived from the base units are used—e.g., the square metre is the derived unit for area, a quantity derived from length. These derived units are coherent, which means that they inv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Statuto Albertino
The Statuto Albertino (English: ''Albertine Statute'') was the constitution granted by King Charles Albert of Sardinia to the Kingdom of Sardinia on 4 March 1848 and written in Italian and French. The Statute later became the constitution of the unified Kingdom of Italy and remained in force, with changes, until 1948. Charles Albert did not want to grant a Constitutional Charter so he attempted to maintain as much power as he could although the Statute marked the end of his absolute monarchy. Background The Statute was proclaimed only because of concern at the revolutionary insurrection agitating Italy in 1848. At the time, Charles Albert was only following the example of other Italian rulers, but his Statute was the only constitution to survive the repression that followed the First War of Independence (1848–49). The Statute remained the basis of the legal system after Italian unification was achieved in 1860 and the Kingdom of Sardinia became the Kingdom of Italy. Even th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Albert Of Savoy
Charles Albert (; 2 October 1798 – 28 July 1849) was the King of Sardinia from 27 April 1831 until 23 March 1849. His name is bound up with the first Italian constitution, the Albertine Statute, and with the First Italian War of Independence (1848–1849). During the Napoleonic period, he resided in France, where he received a liberal education. As Prince of Carignano in 1821, he granted and then withdrew his support for a rebellion which sought to force Victor Emmanuel I to institute a constitutional monarchy. He became a conservative and participated in the legitimist expedition against the Spanish liberals in 1823. He became king of Sardinia in 1831 on the death of his distant cousin Charles Felix, who had no heir. As king, after an initial conservative period during which he supported various European legitimist movements, he adopted the idea of a federal Italy, led by the Pope and freed from the House of Habsburg in 1848. In the same year he granted the Albertine S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piedmont Insurrection
The unification of Italy ( it, Unità d'Italia ), also known as the ''Risorgimento'' (, ; ), was the 19th-century political and social movement that resulted in the consolidation of different states of the Italian Peninsula into a single state in 1861, the Kingdom of Italy. Inspired by the rebellions in the 1820s and 1830s against the outcome of the Congress of Vienna, the unification process was precipitated by the Revolutions of 1848, and reached completion in 1871 after the Capture of Rome and its designation as the capital of the Kingdom of Italy. Some of the states that had been targeted for unification ('' terre irredente'') did not join the Kingdom of Italy until 1918 after Italy defeated Austria-Hungary in the First World War. For this reason, historians sometimes describe the unification period as continuing past 1871, including activities during the late 19th century and the First World War (1915–1918), and reaching completion only with the Armistice of Villa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victor Emmanuel I Of Sardinia
Victor Emmanuel I (Vittorio Emanuele; 24 July 1759 – 10 January 1824) was the Duke of Savoy and King of Sardinia (1802–1821). Biography Victor Emmanuel was the second son of King Victor Amadeus III of Sardinia and Maria Antonia Ferdinanda of Spain, daughter of King Philip V of Spain and Elisabeth Farnese. Victor Emmanuel was known from birth as the Duke of Aosta. From 1792 to 1796, Aosta's father had taken an active part in the struggle of the old powers against the revolutionary forces in France but was defeated and forced to make peace, signing the Treaty of Paris. The old king died shortly thereafter, and in December 1798, his eldest son and successor, Charles Emmanuel IV, was faced with a French occupation and eventually annexation, of his mainland territories. Charles Emmanuel and his family were forced to withdraw to Sardinia, which was the only part of his domains not conquered by the French. Charles Emmanuel himself took little interest in the rule of Sardinia, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-Claude Delamétherie
Jean-Claude Delamétherie (also ''de La Métherie'', ''de Lamétherie'', 4 September 1743 – 1 July 1817) was a French mineralogist, geologist and paleontologist. Career Delamétherie was born in La Clayette. He edited ''Journal de physique, de chimie, d'histoire naturelle et des arts'' from 1785. He was elected member of Leopoldina in 1792. He was a supporter of the French Revolution, but opposed to the Jacobins, and was forced to leave Paris during the Reign of Terror, interrupting publication of the ''Journal de physique'' until 1797. Numerous minerals were first systematically described by Delamétherie. In 1795, Delamétherie first described the Lherzolite (which he named after the site of its discovery, Étang de Lers in the Pyrenees). Delamétherie was an advocate of transmutation of species.Corbey, Raymond. (2005). ''The Metaphysics of Apes: Negotiating the Animal-Human Boundary''. Cambridge University Press. p. 62. He was an atheist and materialist.Corsi, P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vercelli
Vercelli (; pms, Vërsèj ), is a city and ''comune'' of 46,552 inhabitants (January 1, 2017) in the Province of Vercelli, Piedmont, northern Italy. One of the oldest urban sites in northern Italy, it was founded, according to most historians, around 600 BC. The city is situated on the Sesia River in the plain of the Po River between Milan and Turin. It is an important centre for the cultivation of rice and is surrounded by rice paddies, which are flooded in the summer. The climate is typical of the Po Valley with cold, foggy winters ( in January) and oppressive heat during the summer months ( in July). Rainfall is most prevalent during the spring and autumn; thunderstorms are common in the summer. The languages spoken in Vercelli are Italian and Piedmontese; the variety of Piedmontese native to the city is called ''Varsleis''. The world's first university funded by public money was established in Vercelli in 1228 (the seventh university founded in Italy), but was closed in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematics
Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics with the major subdisciplines of number theory, algebra, geometry, and analysis, respectively. There is no general consensus among mathematicians about a common definition for their academic discipline. Most mathematical activity involves the discovery of properties of abstract objects and the use of pure reason to prove them. These objects consist of either abstractions from nature orin modern mathematicsentities that are stipulated to have certain properties, called axioms. A ''proof'' consists of a succession of applications of deductive rules to already established results. These results include previously proved theorems, axioms, andin case of abstraction from naturesome basic properties that are considered true starting points of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physics
Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which relates to the order of nature, or, in other words, to the regular succession of events." Physics is one of the most fundamental scientific disciplines, with its main goal being to understand how the universe behaves. "Physics is one of the most fundamental of the sciences. Scientists of all disciplines use the ideas of physics, including chemists who study the structure of molecules, paleontologists who try to reconstruct how dinosaurs walked, and climatologists who study how human activities affect the atmosphere and oceans. Physics is also the foundation of all engineering and technology. No engineer could design a flat-screen TV, an interplanetary spacecraft, or even a better mousetrap without first understanding the basic laws of physic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecclesiastical Law
Canon law (from grc, κανών, , a 'straight measuring rod, ruler') is a set of ordinances and regulations made by ecclesiastical authority (church leadership) for the government of a Christian organization or church and its members. It is the internal ecclesiastical law, or operational policy, governing the Catholic Church (both the Latin Church and the Eastern Catholic Churches), the Eastern Orthodox and Oriental Orthodox churches, and the individual national churches within the Anglican Communion. The way that such church law is legislated, interpreted and at times adjudicated varies widely among these four bodies of churches. In all three traditions, a canon was originally a rule adopted by a church council; these canons formed the foundation of canon law. Etymology Greek / grc, κανών, Arabic / , Hebrew / , 'straight'; a rule, code, standard, or measure; the root meaning in all these languages is 'reed'; see also the Romance-language ancestors of the English ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
