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1756 In Science
The year 1756 in science and technology involved some significant events. Chemistry * Joseph Black describes how carbonates become more alkaline when they lose carbon dioxide, whereas the taking-up of carbon dioxide reconverts them. * Scottish physician Francis Home publishes ''Experiments on Bleaching'' in Edinburgh. * Mikhail Lomonosov disproves the phlogiston theory of combustion and pioneers the study of oxidation by converting tin to stannic oxide. History of science * Thomas Birch begins publication of ''The History of the Royal Society of London''. Technology * John Smeaton produces the first high-quality cement using hydraulic lime since Roman times for construction of the third Eddystone Lighthouse (completed 1759, following burning down of the second in 1755). * The recipe for mayonnaise (originally "salsa mahonesa" or "maonesa") is probably brought back to France by his chef after Louis François Armand du Plessis, duc de Richelieu's military success on Menorca. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cement
A cement is a binder, a chemical substance used for construction that sets, hardens, and adheres to other materials to bind them together. Cement is seldom used on its own, but rather to bind sand and gravel ( aggregate) together. Cement mixed with fine aggregate produces mortar for masonry, or with sand and gravel, produces concrete. Concrete is the most widely used material in existence and is behind only water as the planet's most-consumed resource. Cements used in construction are usually inorganic, often lime- or calcium silicate-based, and are either hydraulic or less commonly non-hydraulic, depending on the ability of the cement to set in the presence of water (see hydraulic and non-hydraulic lime plaster). Hydraulic cements (e.g., Portland cement) set and become adhesive through a chemical reaction between the dry ingredients and water. The chemical reaction results in mineral hydrates that are not very water-soluble. This allows setting in wet conditions or u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrogen
Nitrogen is a chemical element; it has Symbol (chemistry), symbol N and atomic number 7. Nitrogen is a Nonmetal (chemistry), nonmetal and the lightest member of pnictogen, group 15 of the periodic table, often called the Pnictogen, pnictogens. It is a common element in the universe, estimated at Abundance of the chemical elements, seventh in total abundance in the Milky Way and the Solar System. At standard temperature and pressure, two atoms of the element chemical bond, bond to form N2, a colourless and odourless diatomic molecule, diatomic gas. N2 forms about 78% of Atmosphere of Earth, Earth's atmosphere, making it the most abundant chemical species in air. Because of the volatility of nitrogen compounds, nitrogen is relatively rare in the solid parts of the Earth. It was first discovered and isolated by Scottish physician Daniel Rutherford in 1772 and independently by Carl Wilhelm Scheele and Henry Cavendish at about the same time. The name was suggested by French chemist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemist
A chemist (from Greek ''chēm(ía)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a graduated scientist trained in the study of chemistry, or an officially enrolled student in the field. 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 Chemistry#Subdisciplines, subdisciplines of chemistry. Materials science, Materials scientists and metallurgists sha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-Antoine Chaptal
Jean-Antoine Chaptal, comte de Chanteloup (; 5 June 1756 – 29 July 1832) was a French chemist, physician, agronomist, industrialist, statesman, educator and philanthropist. Chaptal was involved in early industrialization in France under Napoleon and during the Bourbon Restoration in France, Bourbon Restoration. He was a founder and the first president of the Society for the Encouragement of National Industry. He was an organizer of Exposition des produits de l'industrie française, industrial expositions held in Paris. He compiled a study surveying the condition and needs of French industry in the early 1800s. Chaptal published practical essays on the uses of chemistry. He was an industrial producer of hydrochloric, nitric and sulfuric acids, and was sought after as a technical consultant for the manufacture of gunpowder. Chaptal published works which drew on Antoine Lavoisier's theoretical chemistry to make advances in wine-making.Chaptal, Jean-Antoine. 1801. ''L'Art de faire, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copley Medal
The Copley Medal is the most prestigious award of the Royal Society of the United Kingdom, conferred "for sustained, outstanding achievements in any field of science". The award alternates between the physical sciences or mathematics and the biological sciences. It is arguably the highest United Kingdom, British and Commonwealth of Nations, Commonwealth award for scientific achievement, and has often been included among the most distinguished international scientific awards. Given annually, the medal is the oldest Royal Society medal awarded and the oldest surviving scientific award in the world, having first been given in 1731 to Stephen Gray (scientist), Stephen Gray, for "his new Electrical Experiments: – as an encouragement to him for the readiness he has always shown in obliging the Society with his discoveries and improvements in this part of Natural Knowledge". The medal is made of silver-gilt and awarded with a £25,000 prize. It is awarded to "senior scientists" irres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Menorca
Menorca or Minorca (from , later ''Minorica'') is one of the Balearic Islands located in the Mediterranean Sea belonging to Spain. Its name derives from its size, contrasting it with nearby Mallorca. Its capital is Maó, situated on the island's eastern end, although Menorca is not a province and forms a political union with the other islands in the archipelago. Ciutadella de Menorca, Ciutadella and Maó are the main ports and largest towns. Menorca had a population of 102,477 at the Census of 1 January 2025, Its highest point, called El Toro (Minorca), El Toro (from Catalan "''turó''" meaning ''hill''), roughly in the middle of the island, is Above mean sea level, above sea level. History The island is known for its collection of European megalithic culture, megalithic stone monuments: naveta, ''navetes'', taula, ''taules'' and ''talaiots'', which indicate very early prehistoric human activity. Some of the earliest culture on Menorca was influenced by other Mediterran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis François Armand Du Plessis, Duc De Richelieu
Louis may refer to: People * Louis (given name), origin and several individuals with this name * Louis (surname) * Louis (singer), Serbian singer Other uses * Louis (coin), a French coin * HMS ''Louis'', two ships of the Royal Navy See also * Derived terms * King Louis (other) * Saint Louis (other) * Louis Cruise Lines * Louis dressing, for salad * Louis Quinze, design style Associated terms * Lewis (other) * Louie (other) * Luis (other) * Louise (other) * Louisville (other) Associated names * * Chlodwig, the origin of the name Ludwig, which is translated to English as "Louis" * Ladislav and László - names sometimes erroneously associated with "Louis" * Ludovic, Ludwig, Ludwick, Ludwik Ludwik () is a Polish given name. Notable people with the name include: * Ludwik Czyżewski, Polish WWII general * Ludwik Fleck (1896–1961), Polish medical doctor and biologist * Ludwik Gintel (1899–1973), Polish-Israeli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
France
France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlantic, North Atlantic, the French West Indies, and List of islands of France, many islands in Oceania and the Indian Ocean, giving it Exclusive economic zone of France, one of the largest discontiguous exclusive economic zones in the world. Metropolitan France shares borders with Belgium and Luxembourg to the north; Germany to the northeast; Switzerland to the east; Italy and Monaco to the southeast; Andorra and Spain to the south; and a maritime border with the United Kingdom to the northwest. Its metropolitan area extends from the Rhine to the Atlantic Ocean and from the Mediterranean Sea to the English Channel and the North Sea. Its Regions of France, eighteen integral regions—five of which are overseas—span a combined area of and hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mayonnaise
Mayonnaise (), colloquially referred to as "mayo" (), is a thick, creamy sauce with a rich and tangy taste that is commonly used on sandwiches, hamburgers, Salad#Bound salads, bound salads, and French fries. It also forms the base for various other sauces, such as tartar sauce, fry sauce, remoulade, salsa golf, ranch dressing, and rouille. Mayonnaise is an emulsion of Edible oil, oil, egg yolk, and an acid, either vinegar or lemon juice; there are many variants using additional flavorings. The color varies from near-white to pale yellow, and its texture from a light cream to a thick gel. Commercial eggless versions are made for those who avoid chicken eggs because of egg allergies, to limit cholesterol, dietary cholesterol, or because they are vegetarian or Veganism, vegan. History ''Mayonnaise'' is a French cuisine appellation that seems to have appeared for the first time in 1806. The hypotheses invoked over time as to the origin(s) of mayonnaise have been numerous and c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1755 In Science
The year 1755 in science and technology involved some significant events. Astronomy * Immanuel Kant develops the nebular hypothesis in his ''Universal Natural History and Theory of Heaven'' (''Allgemeine Naturgeschichte und Theorie des Himmels''). Chemistry * June – Joseph Black's discovery of carbon dioxide ("fixed air") and magnesium is communicated in a paper to the Royal Society of Edinburgh, Philosophical Society of Edinburgh. Earth sciences * November 1 – An 1755 Lisbon earthquake, earthquake in Lisbon kills 30,000 inhabitants. * Publication of ''De Litteraria expeditione per pontificiam ditionem ad dimetiendos duos meridiani gradus a PP'', a description of the measurement of a meridian arc carried out in the Papal States by Ruđer Bošković with Christopher Maire in 1750–52. Life sciences * August Johann Rösel von Rosenhof publishes the first record of an amoeba; he names it "der kleine Proteus" ("the little Proteus"). Mathematics * Leonhard Euler's ''Institut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1759 In Science
The year 1759 in science and technology involved several significant events. Astronomy * Halley's Comet returns; a team of three mathematicians, Alexis Clairaut, Jérome Lalande and Nicole Reine Lepaute, have – for the first time – predicted the date. Biology * Caspar Friedrich Wolff's dissertation at the University of Halle ''Theoria Generationis'' supports the theory of epigenesis. Botany * Kew Gardens established in England by Augusta of Saxe-Coburg, the mother of George III. Geology * Giovanni Arduino proposes dividing the geological history of Earth into four periods: Primitive, Secondary, Tertiary and Volcanic, or Quaternary. Medicine * June 15 – The first vascular surgery in history is performed by a Dr. Hallowell at Newcastle upon Tyne in England, who uses suture repair rather than a tying off with a ligature to repair an aneurysm on a patient's brachial artery. The new procedure of reconstructing a damaged artery replaces the practice of ligation that had r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
