|
Carl Gassner
Carl Gassner is a German physician (17 November 1855 in Mainz; † 31 January 1942), scientist and inventor, better known to have contributed to improve the Leclanché cell and to have fostered the development of the first dry cell, also known as the zinc–carbon battery, less likely to break or leak and that could be effectively industrially produced at large scale. Life Gassner studied the medicine at the University of Strasbourg and then practiced in Mainz (Germany) as a specialist in diseases of the eyes and ears. He also conducted experiments in physics and chemistry at the Balbach watchmaking industry. Invention of dry cell In 1880, most of the door bells operated with a wet Leclanché cell containing an aqueous electrolyte solution which often dried out, rendering the cell unusable. To remediate this inconvenience, in 1876, Georges Leclanché started to jellify the electrolyte of his cell by adding starch to the ammonium chloride, making also his cell more portabl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gassner Carl2a
Gassner is a surname. Notable people with the surname include: * Alexander Gassner (born 1989), German skeleton racer * Dennis Gassner (born 1948), Canadian production designer * Hermann Gassner (born 1988), German rally driver * Peter Gassner Peter P. Gassner (born 1965) is the CEO and co-founder of Veeva, a company supporting processes in the pharmaceutical industry. With a net worth of US $5.25 billion, he is ranked 494th by ''Bloomberg'' on the list of billionaires worldwide. He i ... (born 1965), American billionaire businessman Surnames of Liechtenstein origin {{DEFAULTSORT:Gassner German-language surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anode
An anode is an electrode of a polarized electrical device through which conventional current enters the device. This contrasts with a cathode, an electrode of the device through which conventional current leaves the device. A common mnemonic is ACID, for "anode current into device". The direction of conventional current (the flow of positive charges) in a circuit is opposite to the direction of electron flow, so (negatively charged) electrons flow out the anode of a galvanic cell, into an outside or external circuit connected to the cell. For example, the end of a household battery marked with a "-" (minus) is the anode. In both a galvanic cell and an electrolytic cell, the anode is the electrode at which the oxidation reaction occurs. In a galvanic cell the anode is the wire or plate having excess negative charge as a result of the oxidation reaction. In an electrolytic cell, the anode is the wire or plate upon which excess positive charge is imposed. As a result of this, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1942 Deaths
Year 194 ( CXCIV) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Septimius and Septimius (or, less frequently, year 947 '' Ab urbe condita''). The denomination 194 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Emperor Septimius Severus and Decimus Clodius Septimius Albinus Caesar become Roman Consuls. * Battle of Issus: Septimius Severus marches with his army (12 legions) to Cilicia, and defeats Pescennius Niger, Roman governor of Syria. Pescennius retreats to Antioch, and is executed by Severus' troops. * Septimius Severus besieges Byzantium (194–196); the city walls suffer extensive damage. Asia * Battle of Yan Province: Warlords Cao Cao and Lü Bu fight for control over Yan Province; the battle lasts for o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1855 Births
Events January–March * January 1 – Ottawa, Ontario, is incorporated as a city. * January 5 – Ramón Castilla begins his third term as President of Peru. * January 23 ** The first bridge over the Mississippi River opens in modern-day Minneapolis, a predecessor of the Father Louis Hennepin Bridge. ** The 8.2–8.3 Wairarapa earthquake claims between five and nine lives near the Cook Strait area of New Zealand. * January 26 – The Point No Point Treaty is signed in the Washington Territory. * January 27 – The Panama Railway becomes the first railroad to connect the Atlantic and Pacific Oceans. * January 29 – Lord Aberdeen resigns as Prime Minister of the United Kingdom, over the management of the Crimean War. * February 5 – Lord Palmerston becomes Prime Minister of the United Kingdom. * February 11 – Kassa Hailu is crowned Tewodros II, Emperor of Ethiopia. * February 12 – Michigan State University (the " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19th-century German Inventors
The 19th (nineteenth) century began on 1 January 1801 ( MDCCCI), and ended on 31 December 1900 ( MCM). The 19th century was the ninth century of the 2nd millennium. The 19th century was characterized by vast social upheaval. Slavery was abolished in much of Europe and the Americas. The First Industrial Revolution, though it began in the late 18th century, expanding beyond its British homeland for the first time during this century, particularly remaking the economies and societies of the Low Countries, the Rhineland, Northern Italy, and the Northeastern United States. A few decades later, the Second Industrial Revolution led to ever more massive urbanization and much higher levels of productivity, profit, and prosperity, a pattern that continued into the 20th century. The Islamic gunpowder empires fell into decline and European imperialism brought much of South Asia, Southeast Asia, and almost all of Africa under colonial rule. It was also marked by the collapse of the large ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battery Inventors
Battery most often refers to: * Electric battery, a device that provides electrical power * Battery (crime), a crime involving unlawful physical contact Battery may also refer to: Energy source *Automotive battery, a device to provide power to certain functions of an automobile *List of battery types *Energy storage, including batteries that are not electrochemical Law * Battery (tort), a civil wrong in common law of intentional harmful or offensive contact Military and naval uses * Artillery battery, an organized group of artillery pieces ** Main battery, the primary weapons of a warship ** Secondary battery (artillery), the smaller guns on a warship * Battery, a position of a cartridge in a firearm action Arts and entertainment Music * Battery (electro-industrial band) * Battery (hardcore punk band) * "Battery", a song by Metallica from the 1986 album ''Master of Puppets'' * Marching percussion ensemble, frequently known as a battery * Battery, a software music sam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georges Leclanché
Georges Leclanché (October 9, 1839 – September 14, 1882) was a French electrical engineer chiefly remembered for his invention of the Leclanché cell, one of the first modern electrical batteries and the forerunner of the modern dry cell battery. Biography Leclanché was born in 1839 in Parmain (Seine-et-Oise), France, the son of Léopold Leclanché and Eugenie of Villeneuve. Due to the political situation in France, and because his father was a former minister, his parents, also friends of the writer Victor Hugo, decided to take the way of exile in the United Kingdom. He was thus educated in England but completed his education at École Centrale des Arts et Manufactures (École Centrale Paris), one of the top engineering schools in France, graduating in 1860 to begin work as an engineer. He first worked for a French railways company where he was in charge of communication infrastructures related to the electrical transmission of time. His interest for the development of efficie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of The Battery
Batteries provided the primary source of electricity before the development of electric generators and electrical grids around the end of the 19th century. Successive improvements in battery technology facilitated major electrical advances, from early scientific studies to the rise of telegraphs and telephones, eventually leading to portable computers, mobile phones, electric cars, and many other electrical devices. Students and engineers developed several commercially important types of battery. "Wet cells" were open containers that held liquid electrolyte and metallic electrodes. When the electrodes were completely consumed, the wet cell was renewed by replacing the electrodes and electrolyte. Open containers are unsuitable for mobile or portable use. Wet cells were used commercially in the telegraph and telephone systems. Early electric cars used semi-sealed wet cells. One important classification for batteries is by their life cycle. "Primary" batteries can produce cu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frankfurt
Frankfurt, officially Frankfurt am Main (; Hessian: , " Frank ford on the Main"), is the most populous city in the German state of Hesse. Its 791,000 inhabitants as of 2022 make it the fifth-most populous city in Germany. Located on its namesake Main River, it forms a continuous conurbation with the neighboring city of Offenbach am Main and its urban area has a population of over 2.3 million. The city is the heart of the larger Rhine-Main metropolitan region, which has a population of more than 5.6 million and is Germany's second-largest metropolitan region after the Rhine-Ruhr region. Frankfurt's central business district, the Bankenviertel, lies about northwest of the geographic center of the EU at Gadheim, Lower Franconia. Like France and Franconia, the city is named after the Franks. Frankfurt is the largest city in the Rhine Franconian dialect area. Frankfurt was a city state, the Free City of Frankfurt, for nearly five centuries, and was one of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erfurt
Erfurt () is the capital and largest city in the Central German state of Thuringia. It is located in the wide valley of the Gera river (progression: ), in the southern part of the Thuringian Basin, north of the Thuringian Forest. It sits in the middle of an almost straight line of cities consisting of the six largest Thuringian cities forming the central metropolitan corridor of the state, the "Thuringian City Chain" ('' Thüringer Städtekette'') with more than 500,000 inhabitants, stretching from Eisenach in the west, via Gotha, Erfurt, Weimar and Jena, to Gera in the east. Erfurt and the city of Göttingen in southern Lower Saxony are the two cities with more than 100,000 inhabitants closest to the geographic center of Germany. Erfurt is located south-west of Leipzig, north-east of Frankfurt, south-west of Berlin and north of Munich. Erfurt's old town is one of the best preserved medieval city centres in Germany. Tourist attractions include the Merchants' Bridge (' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belgium
Belgium, ; french: Belgique ; german: Belgien officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to the southwest, and the North Sea to the northwest. It covers an area of and has a population of more than 11.5 million, making it the 22nd most densely populated country in the world and the 6th most densely populated country in Europe, with a density of . Belgium is part of an area known as the Low Countries, historically a somewhat larger region than the Benelux group of states, as it also included parts of northern France. The capital and largest city is Brussels; other major cities are Antwerp, Ghent, Charleroi, Liège, Bruges, Namur, and Leuven. Belgium is a sovereign state and a federal constitutional monarchy with a parliamentary system. Its institutional organization is complex and is structured on both regional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
