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Liebig Condenser
The Liebig condenser (, ) or straight condenser is a piece of laboratory equipment, specifically a condenser (laboratory), condenser consisting of a straight glass tube surrounded by a water jacket. In typical laboratory operation, such as distillation, the condenser is clamp (tool), clamped to a retort stand in vertical or oblique orientation. The hot vapor of some liquid is introduced at the upper end of the inner tube, and condensation, condenses in contact with its colder walls. Water (or some other fluid) is constantly circulated in the jacket to carry away the heat of vaporization released by the condensing vapor, keeping the tube below the liquid's boiling point. The condensed liquid drips out of the lower end of the inner tube. The Liebig condenser can also be used in reflux or Soxhlet extraction operations, although other condenser types are better suited to those tasks. In this usage, the condenser is held vertically above the recipient with the boiling liquid. The v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German People
Germans (, ) are the natives or inhabitants of Germany, or sometimes more broadly any people who are of German descent or native speakers of the German language. The Basic Law for the Federal Republic of Germany, constitution of Germany, implemented in 1949 following the end of World War II, defines a German as a German nationality law, German citizen. During the 19th and much of the 20th century, discussions on German identity were dominated by concepts of a common language, culture, descent, and history.. "German identity developed through a long historical process that led, in the late 19th and early 20th centuries, to the definition of the German nation as both a community of descent (Volksgemeinschaft) and shared culture and experience. Today, the German language is the primary though not exclusive criterion of German identity." Today, the German language is widely seen as the primary, though not exclusive, criterion of German identity. Estimates on the total number of Germ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris
Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of cities in the European Union by population within city limits, fourth-most populous city in the European Union and the List of cities proper by population density, 30th most densely populated city in the world in 2022. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, culture, Fashion capital, fashion, and gastronomy. Because of its leading role in the French art, arts and Science and technology in France, sciences and its early adoption of extensive street lighting, Paris became known as the City of Light in the 19th century. The City of Paris is the centre of the Île-de-France region, or Paris Region, with an official estimated population of 12,271,794 inhabitants in January 2023, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis XV Of France
Louis XV (15 February 1710 – 10 May 1774), known as Louis the Beloved (), was King of France from 1 September 1715 until his death in 1774. He succeeded his great-grandfather Louis XIV at the age of five. Until he reached maturity (then defined as his 13th birthday) in 1723, the kingdom was ruled by his grand-uncle Philippe II, Duke of Orléans, as Régence, Regent of France. André-Hercule de Fleury, Cardinal Fleury was chief minister from 1726 until his death in 1743, at which time the king took sole control of the kingdom. His reign of almost 59 years (from 1715 to 1774) was the second longest in the history of France, exceeded only by his predecessor, Louis XIV, who had ruled for 72 years (from 1643 to 1715). In 1748, Louis returned the Austrian Netherlands, won at the Battle of Fontenoy of 1745. He ceded New France in North America to Great Britain and Spain at the conclusion of the disastrous Seven Years' War in 1763. He incorporated the territories of the Duchy of Lorr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jakob Gadolin
Jakob Gadolin (24 October 1719 – 26 September 1802) was a Swedish Lutheran bishop, professor of physics and theology, politician and statesman. Gadolin was born in Strängnäs, Sweden. In 1736, he studied at The Royal Academy of Turku (which later became the University of Turku). In 1745 he became Master of Philosophy and Professor of Mathematics. He became accomplished in numerous fields such as philosophy and mathematics and from 1753 was a Professor of Physics and in 1762 Professor of Theology. In 1788, he succeeded Jakob Haartman as the Bishop of the Archdiocese of Turku which was then a diocese of the Church of Sweden. He held this position until his death in 1802. He served as a representative of the clergy in the Diocese of Turku in the Swedish Riksdag of the Estates 1755–56, 1760–62 and 1771–72. In 1751, Gadolin was elected a member of the Royal Swedish Academy of Sciences. He was a member of Pro Fide et Christianismo, a Christian education society. Jakob Ga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finnish People
Finns or Finnish people (, ) are a Baltic Finns, Baltic Finnic ethnic group native to Finland. Finns are traditionally divided into smaller regional groups that span several countries adjacent to Finland, both those who are native to these countries as well as those who have resettled. Some of these may be classified as separate ethnic groups, rather than subgroups of Finns. These include the Kvens and Forest Finns in Norway, the Tornedalians in Sweden, and the Ingrian Finns in Russia. Finnish language, Finnish, the language spoken by Finns, is closely related to other Balto-Finnic languages such as Estonian language, Estonian and Karelian language, Karelian. The Finnic languages are a subgroup of the larger Uralic languages, Uralic family of languages, which also includes Hungarian language, Hungarian. These languages are markedly different from most other languages spoken in Europe, which belong to the Indo-European languages, Indo-European family of languages. Native Finns c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Friedrich August Göttling
Johann Friedrich August Göttling (5 June 1753 – 1 September 1809) was a notable German chemist. Gottling developed and sold chemical assay kits and studied processes for extracting sugar from beetsGöttling, Johann Friedrich August @ NDB/ADB Deutsche Biographie to supplement his meagre university salary. He studied the chemistry of sulphur, , , and mercury. He wrote texts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pharmacist
A pharmacist, also known as a chemist in English in the Commonwealth of Nations, Commonwealth English, is a healthcare professional who is knowledgeable about preparation, mechanism of action, clinical usage and legislation of medications in order to dispense them safely to the public and to provide consultancy services. A pharmacist also often serves as a primary care provider in the community and offers services, such as health screenings and immunizations. Pharmacists undergo university or graduate-level education to understand the biochemical mechanisms and actions of drugs, drug uses, therapeutic roles, side effects, potential drug interactions, and monitoring parameters. In developing countries, a diploma course from approved colleges qualifies one for pharmacist role. This is mated to anatomy, physiology, and pathophysiology. Pharmacists interpret and communicate this specialized knowledge to patients, physicians, and other health care providers. Among other licensing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean Hyacinthe De Magellan
João Jacinto de Magalhães () (1722–1790) was a Portugal, Portuguese Natural philosophy, natural philosopher. Life He was born in Aveiro, Portugal, Aveiro, Portugal, on 4 November 1722. He seems to have been brought up at Lisbon, where he became a monk of the order of St. Augustine, and was pursuing his studies in the Portuguese capital when the city was destroyed by the earthquake of 1755. At age 40 Magellan abandoned the monastic life. About 1764 he appears to have reached England and was in communication with Da Costa of the Royal Society in 1766. For some time he acted as tutor on continental tours, and made the acquaintance of leading scholars of the day, especially in the Netherlands. Magellan was elected a fellow of the Royal Society in 1774, and was a corresponding member of the academies of science in Paris, Madrid, and St. Petersburg. In June 1778 Magellan was at Ermenonville, the seat of the Marquis de Gerardin, and there, with M. du Presle, he visited Jean-Jacques ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germany
Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total population of over 84 million in an area of , making it the most populous member state of the European Union. It borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, and France, Luxembourg, Belgium, and the Netherlands to the west. The Capital of Germany, nation's capital and List of cities in Germany by population, most populous city is Berlin and its main financial centre is Frankfurt; the largest urban area is the Ruhr. Settlement in the territory of modern Germany began in the Lower Paleolithic, with various tribes inhabiting it from the Neolithic onward, chiefly the Celts. Various Germanic peoples, Germanic tribes have inhabited the northern parts of modern Germany since classical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greifswald
Greifswald (), officially the University and Hanseatic City of Greifswald (, Low German: ''Griepswoold'') is the fourth-largest city in the German state of Mecklenburg-Western Pomerania after Rostock, Schwerin and Neubrandenburg. In 2021 it surpassed Stralsund for the first time, and became the largest city in the Pomeranian part of the state. It sits on the River Ryck, at its mouth into the Danish Wiek, a sub-bay of the Bay of Greifswald, which is itself a sub-bay of the Bay of Pomerania of the Baltic Sea. It is the seat of the district of Vorpommern-Greifswald, Western Pomerania-Greifswald, and is located roughly in the middle between the two largest Pomeranian islands of Rügen and Usedom. The closest larger cities are Stralsund, Rostock, Szczecin and Schwerin. It lies west of the River Zarow, the historical cultural and linguistic boundary between West (west of the river) and Central Pomerania (east of the river). The city derives its name from the dukes of Pomerania, the Hous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
