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Georg Ernst Stahl
Georg Ernst Stahl (22 October 1659Stahl's date of birth is often given erroneously as 1660. The correct date is recorded in the parish register of St. John's church, Ansbach. See – 24 May 1734) was a German chemist, physician and philosopher. He was a supporter of vitalism, and until the late 18th century his works on phlogiston were accepted as an explanation for chemical processes.Ku-ming Chang (2008)"Stahl, Georg Ernst", ''Complete Dictionary of Scientific Biography'', Vol. 24, from Cengage Learning Raised as a son to a Lutheran pastor, he was brought up in a very pious and religious household. From an early age he expressed profound interest in chemistry, by age 15 mastering a set of university lecture notes on chemistry and eventually a difficult treatise by Johann von Löwenstern-Kunckel, Johann Kunckel. He had two wives, who both died from puerperal fever in 1696 and 1706. He also had a son Johnathan and a daughter who died in 1708. He continued to work and publish foll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ansbach
Ansbach ( , ; ) is a city in the Germany, German state of Bavaria. It is the capital of the Regierungsbezirk, administrative region of Mittelfranken, Middle Franconia. Ansbach is southwest of Nuremberg and north of Munich, on the river Fränkische Rezat, a tributary of the river Main (river), Main. In 2020, its population was 41,681. Developed in the 8th century as a Benedictine monastery, it became the seat of the House of Hohenzollern, Hohenzollern family in 1331. In 1460, the Margraves of Fürst und Markgraf von Ansbach, Brandenburg-Ansbach lived here. The city has a castle known as Markgrafenschloß, Margrafen–Schloss, built between 1704 and 1738. It was not badly damaged during the World Wars and hence retains its original historical baroque sheen. Ansbach is now home to a US military base and to the Ansbach University of Applied Sciences. The city has connections via autobahn Bundesautobahn 6, A6 and highways Bundesstraße 13, B13 and Bundesstraße 14, B14. Ansbach st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pietism
Pietism (), also known as Pietistic Lutheranism, is a movement within Lutheranism that combines its emphasis on biblical doctrine with an emphasis on individual piety and living a holy Christianity, Christian life. Although the movement is aligned with Lutheranism, it has had a tremendous impact on Protestantism worldwide, particularly in North America and Europe. Pietism originated in modern Germany in the late 17th century with the work of Philipp Spener, a Lutheran theologian whose emphasis on personal transformation through spiritual rebirth and renewal, individual devotion, and piety laid the foundations for the movement. Although Spener did not directly advocate the Quietism (Christian contemplation), quietistic, legalistic, and semi-separatist practices of Pietism, they were more or less involved in the positions he assumed or the practices which he encouraged. Pietism spread from Germany to Switzerland, the rest of German-speaking Europe, and to Scandinavia and the Balt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fever
Fever or pyrexia in humans is a symptom of an anti-infection defense mechanism that appears with Human body temperature, body temperature exceeding the normal range caused by an increase in the body's temperature Human body temperature#Fever, set point in the hypothalamus. There is no single agreed-upon upper limit for normal temperature: sources use values ranging between in humans. The increase in set point triggers increased muscle tone, muscle contractions and causes a feeling of cold or chills. This results in greater heat production and efforts to conserve heat. When the set point temperature returns to normal, a person feels hot, becomes Flushing (physiology), flushed, and may begin to Perspiration, sweat. Rarely a fever may trigger a febrile seizure, with this being more common in young children. Fevers do not typically go higher than . A fever can be caused by many medical conditions ranging from non-serious to life-threatening. This includes viral infection, viral, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heat
In thermodynamics, heat is energy in transfer between a thermodynamic system and its surroundings by such mechanisms as thermal conduction, electromagnetic radiation, and friction, which are microscopic in nature, involving sub-atomic, atomic, or molecular particles, or small surface irregularities, as distinct from the macroscopic modes of energy transfer, which are thermodynamic work and transfer of matter. For a closed system (transfer of matter excluded), the heat involved in a process is the difference in internal energy between the final and initial states of a system, after subtracting the work done in the process. For a closed system, this is the formulation of the first law of thermodynamics. Calorimetry is measurement of quantity of energy transferred as heat by its effect on the states of interacting bodies, for example, by the amount of ice melted or by change in temperature of a body. In the International System of Units (SI), the unit of measurement for he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gottfried Leibniz
Gottfried Wilhelm Leibniz (or Leibnitz; – 14 November 1716) was a German polymath active as a mathematician, philosopher, scientist and diplomat who is credited, alongside Isaac Newton, Sir Isaac Newton, with the creation of calculus in addition to many other branches of mathematics, such as binary arithmetic and statistics. Leibniz has been called the "last universal genius" due to his vast expertise across fields, which became a rarity after his lifetime with the coming of the Industrial Revolution and the spread of specialized labor. He is a prominent figure in both the history of philosophy and the history of mathematics. He wrote works on philosophy, theology, ethics, politics, law, history, philology, games, music, and other studies. Leibniz also made major contributions to physics and technology, and anticipated notions that surfaced much later in probability theory, biology, medicine, geology, psychology, linguistics and computer science. Leibniz contributed to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Secretion
Secretion is the movement of material from one point to another, such as a secreted chemical substance from a cell or gland. In contrast, excretion is the removal of certain substances or waste products from a cell or organism. The classical mechanism of cell secretion is via secretory portals at the plasma membrane called porosomes. Porosomes are permanent cup-shaped lipoprotein structures embedded in the cell membrane, where secretory vesicles transiently dock and fuse to release intra-vesicular contents from the cell. Secretion in bacterial species means the transport or translocation of effector molecules. For example: proteins, enzymes or toxins (such as cholera toxin in pathogenic bacteria e.g. '' Vibrio cholerae'') from across the interior (cytoplasm or cytosol) of a bacterial cell to its exterior. Secretion is a very important mechanism in bacterial functioning and operation in their natural surrounding environment for adaptation and survival. In eukaryotic cells ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Excretion
Excretion is elimination of metabolic waste, which is an essential process in all organisms. In vertebrates, this is primarily carried out by the lungs, Kidney (vertebrates), kidneys, and skin. This is in contrast with secretion, where the substance may have specific tasks after leaving the Cell (biology), cell. For example, placental mammals expel urine from the bladder through the urethra, which is part of the excretory system. Unicellular organisms discharge waste products directly through the surface of the cell. During life activities such as cellular respiration, several chemical reactions take place in the body. These are known as metabolism. These chemical reactions produce waste products such as carbon dioxide, water, Salt (chemistry), salts, urea and uric acid. Accumulation of these wastes beyond a level inside the body is harmful to the body. The excretory organs remove these wastes. This process of removal of metabolic waste from the body is known as excretion. Proce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circulation Of Blood
In vertebrates, the circulatory system is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the body. It includes the cardiovascular system, or vascular system, that consists of the heart and blood vessels (from Greek meaning ''heart'', and Latin meaning ''vessels''). The circulatory system has two divisions, a systemic circulation or circuit, and a pulmonary circulation or circuit. Some sources use the terms ''cardiovascular system'' and ''vascular system'' interchangeably with ''circulatory system''. The network of blood vessels are the great vessels of the heart including large elastic arteries, and large veins; other arteries, smaller arterioles, capillaries that join with venules (small veins), and other veins. The circulatory system is closed in vertebrates, which means that the blood never leaves the network of blood vessels. Many invertebrates such as arthropods have an open circulatory system with a heart that p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann Boerhaave
Herman Boerhaave (, 31 December 1668 – 23 September 1738Underwood, E. Ashworth. "Boerhaave After Three Hundred Years." ''The British Medical Journal'' 4, no. 5634 (1968): 820–25. .) was a Dutch chemist, botanist, Christian humanist, and physician. He is sometimes regarded as the founder of clinical teaching and of the modern academic hospital along with Venetian physician Santorio Santorio (1561–1636). Boerhaave introduced the quantitative approach into medicine, along with his pupil Albrecht von Haller (1708–1777). He was the first to isolate the chemical urea from urine. He was the first physician to put thermometer measurements to clinical practice. His motto was ''Simplex veri sigillum'': 'Simplicity is the sign of the truth'. He is often hailed as the "Dutch Hippocrates". Biography Boerhaave was born at Voorhout near Leiden. The son of a Protestant pastor, in his youth Boerhaave studied for a divinity degree and wanted to become a preacher.Mendelsohn, p. 287 Aft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Materialism
Materialism is a form of monism, philosophical monism according to which matter is the fundamental Substance theory, substance in nature, and all things, including mind, mental states and consciousness, are results of material interactions. According to philosophical materialism, mind and consciousness are caused by physical processes, such as the neurochemistry of the human brain and nervous system, without which they cannot exist. Materialism directly contrasts with monistic idealism, according to which consciousness is the fundamental substance of nature. Materialism is closely related to physicalism—the view that all that exists is ultimately physical. Philosophical physicalism has evolved from materialism with the theories of the physical sciences to incorporate forms of physicality in addition to ordinary matter (e.g. spacetime, energy, physical energies and forces, and exotic matter). Thus, some prefer the term ''physicalism'' to ''materialism'', while others use them as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animism
Animism (from meaning 'breath, spirit, life') is the belief that objects, places, and creatures all possess a distinct spiritual essence. Animism perceives all things—animals, plants, rocks, rivers, weather systems, human handiwork, and in some cases words—as being animated, having agency and free will. Animism is used in anthropology of religion as a term for the belief system of many Indigenous peoples in contrast to the relatively more recent development of organized religions. Animism is a metaphysical belief which focuses on the supernatural universe: specifically, on the concept of the immaterial soul. Although each culture has its own mythologies and rituals, animism is said to describe the most common, foundational thread of indigenous peoples' "spiritual" or "supernatural" perspectives. The animistic perspective is so widely held and inherent to most indigenous peoples that they often do not even have a word in their languages that corresponds to "animism" (o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friedrich Wilhelm I Of Prussia
Frederick William I (; 14 August 1688 – 31 May 1740), known as the Soldier King (), was King in Prussia and Elector of Brandenburg from 1713 until his death in 1740, as well as Prince of Neuchâtel. Born in Berlin, he was raised by the Huguenot governess Marthe de Roucoulle. His political awakening occurred during the Great Northern War's plague outbreak in Prussia, leading to his challenge against corruption and inefficiency in government. He initiated reforms, especially in the military, doubling the Prussian Army and increased the officer corps to 3,000. A believer in absolute monarchy, he focused on state development and financial reorganization, imposing taxes and stringent regulations on public servants. He made efforts to reduce crime and centralized his authority during his 27 years' reign, cementing Prussia as a regional power. Despite his effective rule, he had a harsh nature, exacerbated by his health issues. He engaged in colonial affairs, but prioritized mili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
