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Johan Patrik Ljungström
Johan Patrik Ljungström (1784–1859) was a Swedish jeweler, inventor, and underwater diving pioneer. He is credited as the first private underwater diver in Sweden, and possibly beyond. His works, sometimes abbreviated as ''J. P. Ljungström'' (J.P.L.) are represented inter alia by the Nordic Museum in Stockholm, and the Museum of Bohuslän. Biography Johan Patrik Ljungström was born in Stockholm, Sweden, Christian Fredrik Ljungström, a länsman, and Anna Elisabeth (née Tengman). He married three times: to Fredrika Charlotte (née Skarstedt), Maria Christina (née Spaak), and Britta Catharina (née Bagge). He had children in all three marriages, including Jonas Patrik Ljungström. Active as a jeweler and burgher in Stockholm, Uddevalla, and Saint Petersburg, Russian Empire, works surviving from his ateliers include ranging from ciboriums preserved by the Church of Sweden, to jewelry for personal adornment represented by the Nordic Museum, as well as regional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stockholm
Stockholm () is the Capital city, capital and List of urban areas in Sweden by population, largest city of Sweden as well as the List of urban areas in the Nordic countries, largest urban area in Scandinavia. Approximately 980,000 people live in the Stockholm Municipality, municipality, with 1.6 million in the Stockholm urban area, urban area, and 2.4 million in the Metropolitan Stockholm, metropolitan area. The city stretches across fourteen islands where Mälaren, Lake Mälaren flows into the Baltic Sea. Outside the city to the east, and along the coast, is the island chain of the Stockholm archipelago. The area has been settled since the Stone Age, in the 6th millennium BC, and was founded as a city in 1252 by Swedish statesman Birger Jarl. It is also the county seat of Stockholm County. For several hundred years, Stockholm was the capital of Finland as well (), which then was a part of Sweden. The population of the municipality of Stockholm is expected to reach o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russian Empire
The Russian Empire was an empire and the final period of the Russian monarchy from 1721 to 1917, ruling across large parts of Eurasia. It succeeded the Tsardom of Russia following the Treaty of Nystad, which ended the Great Northern War. The rise of the Russian Empire coincided with the decline of neighbouring rival powers: the Swedish Empire, the Polish–Lithuanian Commonwealth, Qajar Iran, the Ottoman Empire, and Qing China. It also held colonies in North America between 1799 and 1867. Covering an area of approximately , it remains the third-largest empire in history, surpassed only by the British Empire and the Mongol Empire; it ruled over a population of 125.6 million people per the 1897 Russian census, which was the only census carried out during the entire imperial period. Owing to its geographic extent across three continents at its peak, it featured great ethnic, linguistic, religious, and economic diversity. From the 10th–17th centuries, the land ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diving Bell
A diving bell is a rigid chamber used to transport divers from the surface to depth and back in open water, usually for the purpose of performing underwater work. The most common types are the open-bottomed wet bell and the closed bell, which can maintain an internal pressure greater than the external ambient. Diving bells are usually suspended by a cable, and lifted and lowered by a winch from a surface support platform. Unlike a submersible, the diving bell is not designed to move under the control of its occupants, nor to operate independently of its launch and recovery system. The wet bell is a structure with an airtight chamber which is open to the water at the bottom, that is lowered underwater to operate as a base or a means of transport for a small number of divers. Air is trapped inside the bell by pressure of the water at the interface. These were the first type of diving chamber, and are still in use in modified form. The closed bell is a pressure vessel for human ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles XIV John Of Sweden
sv, Karl Johan Baptist Julius , spouse = , issue = Oscar I of Sweden , house = Bernadotte , father = Henri Bernadotte , mother = Jeanne de Saint-Jean , birth_date = , birth_place = Pau, France , death_date = , death_place = Stockholm, Sweden , date of burial = 26 April 1844 , place of burial = Riddarholm Church , religion = Lutheran''prev.'' Roman Catholic , signature = Autograf, Carl Johan, Nordisk familjebok.svg , module = Charles XIV John ( sv, Karl XIV Johan; born Jean Bernadotte; 26 January 1763 – 8 March 1844) was King of Sweden and Norway from 1818 until his death in 1844. Before his reign he was a Marshal of France during the Napoleonic Wars and participated in several battles. In modern Norwegian lists of kings he is called Charles III John ( no, Karl III Johan). He was the first monarch of the Bernadotte dynasty. Born in Pau in southern France, Bernadotte joined the Frenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Visit
A state visit is a formal visit by a head of state to a foreign country, at the invitation of the head of state of that foreign country, with the latter also acting as the official host for the duration of the state visit. Speaking for the host, it is generally called a state reception. State visits are considered to be the highest expression of friendly bilateral relations between two sovereign states, and are in general characterised by an emphasis on official public ceremonies. Less formal visits than a state visit to another country with a lesser emphasis on ceremonial events, by either a head of state or a head of government, can be classified (in descending order of magnitude) as either an official visit, an official working visit, a working visit, a guest-of-government visit, or a private visit. In parliamentary democracies, while heads of state in such systems of government may formally issue and accept invitations, they do so on the advice of their heads of government, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
City Gate
A city gate is a gate which is, or was, set within a city wall. It is a type of fortified gateway. Uses City gates were traditionally built to provide a point of controlled access to and departure from a walled city for people, vehicles, goods and animals. Depending on their historical context they filled functions relating to defense, security, health, trade, taxation, and representation, and were correspondingly staffed by military or municipal authorities. The city gate was also commonly used to display diverse kinds of public information such as announcements, tax and toll schedules, standards of local measures, and legal texts. It could be heavily fortified, ornamented with heraldic shields, sculpture or inscriptions, or used as a location for warning or intimidation, for example by displaying the heads of beheaded criminals or public enemies. Notably in Denmark, many market towns used to have at least one city gate mostly as part of the city's fortifications, but during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triumphal Arch
A triumphal arch is a free-standing monumental structure in the shape of an archway with one or more arched passageways, often designed to span a road. In its simplest form a triumphal arch consists of two massive piers connected by an arch, crowned with a flat entablature or attic on which a statue might be mounted or which bears commemorative inscriptions. The main structure is often decorated with carvings, sculpted reliefs, and dedications. More elaborate triumphal arches may have multiple archways. Triumphal arches are one of the most influential and distinctive types of architecture associated with ancient Rome. Thought to have been invented by the Romans, the Roman triumphal arch was used to commemorate victorious generals or significant public events such as the founding of new colonies, the construction of a road or bridge, the death of a member of the imperial family or the ascension of a new emperor. The survival of great Roman triumphal arches such as the Arch of Ti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crystal
A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macroscopic single crystals are usually identifiable by their geometrical shape, consisting of flat faces with specific, characteristic orientations. The scientific study of crystals and crystal formation is known as crystallography. The process of crystal formation via mechanisms of crystal growth is called crystallization or solidification. The word ''crystal'' derives from the Ancient Greek word (), meaning both "ice" and "rock crystal", from (), "icy cold, frost". Examples of large crystals include snowflakes, diamonds, and table salt. Most inorganic solids are not crystals but polycrystals, i.e. many microscopic crystals fused together into a single solid. Polycrystals include most metals, rocks, ceramics, and ice. A third category of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brass
Brass is an alloy of copper (Cu) and zinc (Zn), in proportions which can be varied to achieve different mechanical, electrical, and chemical properties. It is a substitutional alloy: atoms of the two constituents may replace each other within the same crystal structure. Brass is similar to bronze, another copper alloy, that uses tin instead of zinc. Both bronze and brass may include small proportions of a range of other elements including arsenic (As), lead (Pb), phosphorus (P), aluminium (Al), manganese (Mn), and silicon (Si). Historically, the distinction between the two alloys has been less consistent and clear, and modern practice in museums and archaeology increasingly avoids both terms for historical objects in favor of the more general "copper alloy". Brass has long been a popular material for decoration due to its bright, gold-like appearance; being used for drawer pulls and doorknobs. It has also been widely used to make utensils because of its low melting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chandelier
A chandelier (; also known as girandole, candelabra lamp, or least commonly suspended lights) is a branched ornamental light fixture designed to be mounted on ceilings or walls. Chandeliers are often ornate, and normally use incandescent light bulbs, though some modern designs also use fluorescent lamps and recently LEDs. Classic chandeliers have arrays of hanging crystal prisms to illuminate a room with refracted light, while contemporary chandeliers assume a more minimalist design that does not contain prisms and illuminate a room with direct light from the lamps, sometimes also equipped with translucent glass covering each lamp. Modern chandeliers have a more modernized design that uses LEDs, and combines the elements of both classic and contemporary designs; some are also equipped with refractive crystal prisms or small mirrors. Chandeliers are distinct from pendant lights, as they usually consist of multiple lamps and hang in branched frames, whereas pendant lights h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper
Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement. Copper is one of the few metals that can occur in nature in a directly usable metallic form ( native metals). This led to very early human use in several regions, from circa 8000 BC. Thousands of years later, it was the first metal to be smelted from sulfide ores, circa 5000 BC; the first metal to be cast into a shape in a mold, c. 4000 BC; and the first metal to be purposely alloyed with another metal, tin, to create ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas Lighting
Gas lighting is the production of artificial light from combustion of a gaseous fuel, such as hydrogen, methane, carbon monoxide, propane, butane, acetylene, ethylene, coal gas (town gas) or natural gas. The light is produced either directly by the flame, generally by using special mixes (typically propane or butane) of illuminating gas to increase brightness, or indirectly with other components such as the gas mantle or the limelight, with the gas primarily functioning as a heat source for the incandescence of the gas mantle or lime. Before electricity became sufficiently widespread and economical to allow for general public use, gas was the most prevalent method of outdoor and indoor lighting in cities and suburbs, areas where the infrastructure for distribution of the gaseous fuel was practical. When gas lighting was prevalent, the most common fuels for gas lighting were wood gas, coal gas and, in limited cases, water gas. Early gas lights were ignited manually by lampl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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