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Top Of The Mont Blanc
The so-called Top of the Mont Blanc is a collection piece on display in the Oval Room of Teylers Museum. The specimen was cut off from the highest findable piece of exposed rock of the Rocher de la Tournette, high on the snow covered summit ridge of the Mont Blanc on 3 August 1787, during one of the first climbs of the mountain by the Swiss scientific pioneer Horace Bénédict de Saussure.Website of the Teylers Museum on the top of the Mont Blanc The climb The climb was the second known to reach the top of Mont Blanc after and |
Descent From Mont-Blanc In 1787
Descent may refer to: As a noun Genealogy and inheritance * Common descent, concept in evolutionary biology * Kinship, one of the major concepts of cultural anthropology **Pedigree chart or family tree **Ancestry **Lineal descendant **Heritage (other), Heritage **Royal descent - lineal descent from a monarch *Phylogenetics **Tree diagram (other) *Inheritance (law and property) Mathematics * Infinite descent, a method going back to Fermat to solve Diophantine equations * Descent (mathematics), an idea extending the notion of "gluing" in topology * Hadamard's method of descent, a technique for solving partial differential equations * Gradient descent, a first-order optimization algorithm going back to Newton * Descents in permutations, a classical Permutation#Descents, permutation statistic in combinatorics Other uses *Descent (aeronautics), the decrease of an aircraft in altitude during flight *Descent (font), the distance that a typeface descends below the base ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bedrock
In geology, bedrock is solid Rock (geology), rock that lies under loose material (regolith) within the crust (geology), crust of Earth or another terrestrial planet. Definition Bedrock is the solid rock that underlies looser surface material. An exposed portion of bedrock is often called an outcrop. The various kinds of broken and weathered rock material, such as soil and subsoil, that may overlie the bedrock are known as regolith. Engineering geology The surface of the bedrock beneath the soil cover (regolith) is also known as ''rockhead'' in engineering geology, and its identification by digging, drilling or geophysics, geophysical methods is an important task in most civil engineering projects. Superficial deposition (geology), deposits can be very thick, such that the bedrock lies hundreds of meters below the surface. Weathering of bedrock Exposed bedrock experiences weathering, which may be physical or chemical, and which alters the structure of the rock to leave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountains Of The Alps
This page tabulates only the most prominent mountains of the Alps, selected for having a topographic prominence of ''at least'' , and all of them exceeding in height. Although the list contains 537 summits, some significant alpine mountains are necessarily excluded for failing to meet the stringent prominence criterion. The list of these most prominent mountains is continued down to 2500 m elevation at List of prominent mountains of the Alps (2500–2999 m) and down to 2000 m elevation on List of prominent mountains of the Alps (2000–2499 m). All such mountains are located in either France, Italy, Switzerland, Liechtenstein, Austria, Germany or Slovenia, even in some lower regions. Together, these three lists include all 44 ultra-prominent peaks of the Alps, with 19 ultras over 3000m on this page. For a definitive list of all 82 the highest peaks of the Alps, as identified by the International Climbing and Mountaineering Federation (UIAA), and often referred to as the 'Alpi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Geology
The history of geology is concerned with the development of the natural science of geology. Geology is the scientific study of the origin, history, and structure of Earth. Antiquity Some of the first geological thoughts were about the origin of Earth. Ancient Greece developed some primary geological concepts concerning the origin of the earth. Additionally, in the 4th century BC Aristotle made critical observations of the slow rate of geological change. He observed the composition of the land and formulated a theory where the earth changes at a slow rate and that these changes cannot be observed during one person's lifetime. Aristotle developed one of the first evidence-based concepts connected to the geological realm regarding the rate at which the earth physically changes. However, it was his successor at the Lyceum, the philosopher Theophrastus, who made the greatest progress in antiquity in his work ''On Stones''. He described many minerals and ores both from local mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodore De Saussure
Theodore may refer to: Places * Theodore, Alabama, United States * Theodore, Australian Capital Territory * Theodore, Queensland, a town in the Shire of Banana, Australia * Theodore, Saskatchewan, Canada * Theodore Reservoir, a lake in Saskatchewan People * Theodore (given name), includes the etymology of the given name and a list of people * Theodore (surname), a list of people Fictional characters * Theodore "T-Bag" Bagwell, on the television series ''Prison Break'' * Theodore Huxtable, on the television series ''The Cosby Show'' Other uses * Theodore (horse), a British Thoroughbred racehorse * Theodore Racing, a Formula One racing team See also * Principality of Theodoro, a principality in the south-west Crimea from the 13th to 15th centuries * Thoros (other), Armenian for Theodore * James Bass Mullinger James Bass Mullinger (1834 or 1843 – 22 November 1917), sometimes known by his pen name Theodorus, was a British author, historian, lecturer and scholar. A l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chamonix
Chamonix-Mont-Blanc ( frp, Chamôni), more commonly known as Chamonix, is a commune in the Haute-Savoie department in the Auvergne-Rhône-Alpes region of southeastern France. It was the site of the first Winter Olympics in 1924. In 2019, it had a population of 8,640. Situated to the north of Mont Blanc, between the peaks of the Aiguilles Rouges and the notable Aiguille du Midi, Chamonix is one of the oldest ski resorts in France. The Chamonix commune is popular with skiers and mountain enthusiasts. Via the cable car lift to the Aiguille du Midi it is possible to access the off-piste (backcountry) ski run of the ''Vallée Blanche''. Name The name Campum munitum, meaning fortified plain or field, had been used as early as 1091. By 1283 the name had been abbreviated to a similar form to the modern Chamonis. Other forms through the ages include Chamouny in 1581, Chamony in 1652, Chamouni in 1786, and the particular spelling Chamonix from 1793. Status Chamonix is the fourth-largest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles François Exchaquet
Charles-François Exchaquet born 6 December 1746 in Court in the canton of Berne and died in 1792 in Servoz in Savoie, was a Swiss engineer, cartographer and mountaineer. Biography In 1781 he became director of the smelting works of Servoz, responsible for the mineral and metallurgical operations. In 1787, he was the first tourist to cross the Col du Géant, the mountain saddle between the Tour Ronde and the Dent du Géant, from Chamonix in the Arve Valley to Courmayeur in Val d'Aosta. Since the same year he manufactured and sold relief maps of the Mont-Blanc Massif and the Saint-Gotthard Massif The Gotthard Massif or Saint-Gotthard Massif (german: Gotthardmassiv or ; it, Massiccio del San Gottardo; rm, Massiv dal Gottard) is a mountain range in the Alps in Switzerland, located at the border of four cantons: Valais, Ticino, Uri and Grau .... Bibliography * L. Seylaz, « Un émule de H. B. de Saussure: C.-F. Exchaquet rchive», in ''Les Alpes'', 11, 1935, pages 187-195 * L. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maquette
A ''maquette'' (French word for scale model, sometimes referred to by the Italian names ''plastico'' or ''modello'') is a scale model or rough draft of an unfinished sculpture. An equivalent term is ''bozzetto'', from the Italian word for "sketch". Sculpture A maquette is used to visualize and test forms and ideas without incurring the expense and effort of producing a full-scale piece. It is the analogue of the painter's cartoon, ''modello'', oil sketch, or drawn sketch. For commissioned works, especially monumental public sculptures, a maquette may be used to show the client how the finished work will relate to its proposed site. The term may also refer to a prototype for a video game, film, or other media. ''Modello'', unlike the other terms, is also used for sketches for two-dimensional works such as paintings. Like oil sketches, these models by highly regarded artists can become as desirable as their completed works, as they show the process of developing an idea. For exa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martinus Van Marum
Martin(us) van Marum (20 March 1750, Delft – 26 December 1837, Haarlem) was a Dutch physician, inventor, scientist and teacher, who studied medicine and philosophy in Groningen. Van Marum introduced modern chemistry in the Netherlands after the theories of Lavoisier, and several scientific applications for general use. He became famous for his demonstrations with instruments, most notable the '' Large electricity machine'', to show statical electricity and chemical experiments while curator for the Teylers Museum. Biography Early career Born in Delft, Van Marum moved to Haarlem in 1776 ''because the Haarlemmers had more taste in the sciences than anywhere else in the Netherlands.'' After his arrival in Haarlem he began to practise medicine, but devoted himself mainly to lecturing on physical subjects and creating instruments to demonstrate physical theory. He must have made a big impression on Haarlem society, because he became a member of the Dutch Society of Science in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology
Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology, and so is treated as one major aspect of integrated Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface, and the processes that have shaped that structure. It also provides tools to determine the relative and absolute ages of rocks found in a given location, and also to describe the histories of those rocks. By combining these tools, geologists are able to chronicle the geological history of the Earth as a whole, and also to demonstrate the age of the Earth. Geology provides the primary evidence for plate tectonics, the evolutionary history of life, and the Earth's past climates. Geologists broadly study the properties and processes of E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mineral
In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed. (2011): Minerals'; p. 1. In the series ''Geology: Landforms, Minerals, and Rocks''. Rosen Publishing Group. The geological definition of mineral normally excludes compounds that occur only in living organisms. However, some minerals are often biogenic (such as calcite) or are organic compounds in the sense of chemistry (such as mellite). Moreover, living organisms often synthesize inorganic minerals (such as hydroxylapatite) that also occur in rocks. The concept of mineral is distinct from rock, which is any bulk solid geologic material that is relatively homogeneous at a large enough scale. A rock may consist of one type of mineral, or may be an aggregate of two or more different types of minerals, spacially segregated into distinct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermometer
A thermometer is a device that temperature measurement, measures temperature or a temperature gradient (the degree of hotness or coldness of an object). A thermometer has two important elements: (1) a temperature sensor (e.g. the bulb of a mercury-in-glass thermometer or the pyrometric sensor in an infrared thermometer) in which some change occurs with a change in temperature; and (2) some means of converting this change into a numerical value (e.g. the visible scale that is marked on a mercury-in-glass thermometer or the digital readout on an infrared model). Thermometers are widely used in technology and industry to monitor processes, in meteorology, in medicine, and in scientific research. History While an individual thermometer is able to measure degrees of hotness, the readings on two thermometers cannot be compared unless they conform to an agreed scale. Today there is an absolute thermodynamic temperature scale. Internationally agreed temperature scales are designed to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
