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Johann Jacob Heber
Johann Jacob Heber (1666–1727) was a surveyor and geometrician from the city of Lindau, Germany. He is the artist of the first map of the Principality of Liechtenstein Liechtenstein (), officially the Principality of Liechtenstein (german: link=no, Fürstentum Liechtenstein), is a German-speaking microstate located in the Alps between Austria and Switzerland. Liechtenstein is a semi-constitutional monarch ... on record, which he drew in 1721. Heber was the son of Jacob Heber and Elisabetha Catharina. He married Elisabetha Barbara Hartenstein, daughter of Philipp Mathias Hartenstein and Eva Katharina Spacke, on 26 January 1797 at Thaleischweiler, Rheinland-Pfalz, Germany. References 18th-century German cartographers History of Liechtenstein 1666 births 1727 deaths People from Lindau {{Germany-artist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surveying
Surveying or land surveying is the technique, profession, art, and science of determining the terrestrial two-dimensional or three-dimensional positions of points and the distances and angles between them. A land surveying professional is called a land surveyor. These points are usually on the surface of the Earth, and they are often used to establish maps and boundaries for ownership, locations, such as the designed positions of structural components for construction or the surface location of subsurface features, or other purposes required by government or civil law, such as property sales. Surveyors work with elements of geodesy, geometry, trigonometry, regression analysis, physics, engineering, metrology, programming languages, and the law. They use equipment, such as total stations, robotic total stations, theodolites, GNSS receivers, retroreflectors, 3D scanners, LiDAR sensors, radios, inclinometer, handheld tablets, optical and digital levels, subsurface locators, d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geometrician
A geometer is a mathematician whose area of study is geometry. Some notable geometers and their main fields of work, chronologically listed, are: 1000 BCE to 1 BCE * Baudhayana (fl. c. 800 BC) – Euclidean geometry, geometric algebra * Manava (c. 750 BC–690 BC) – Euclidean geometry * Thales of Miletus (c. 624 BC – c. 546 BC) – Euclidean geometry * Pythagoras (c. 570 BC – c. 495 BC) – Euclidean geometry, Pythagorean theorem * Zeno of Elea (c. 490 BC – c. 430 BC) – Euclidean geometry * Hippocrates of Chios (born c. 470 – 410 BC) – first systematically organized '' Stoicheia – Elements'' (geometry textbook) * Mozi (c. 468 BC – c. 391 BC) * Plato (427–347 BC) * Theaetetus (c. 417 BC – 369 BC) * Autolycus of Pitane (360–c. 290 BC) – astronomy, spherical geometry * Euclid (fl. 300 BC) – '' Elements'', Euclidean geometry (sometimes called the "father of geometry") * Apollonius of Perga (c. 262 BC – c. 190 BC) – Euclidean geometry, coni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lindau
Lindau (german: Lindau (Bodensee), ''Lindau am Bodensee''; ; Low Alemannic German, Low Alemannic: ''Lindou'') is a major Town#Germany, town and Lindau (island), island on the eastern side of Lake Constance (''Bodensee'' in German) in Bavaria, Germany. It is the capital of the county (''Landkreis'') of Lindau (district), Lindau, Bavaria and is near the borders of the Austrian state of Vorarlberg and the Switzerland, Swiss cantons of Canton of St. Gallen, St. Gallen and Canton of Thurgau, Thurgau. The coat of arms of Lindau town is a linden tree, referring to the supposed origin of the town's name (''Linde'' means linden tree in German). The historic town of Lindau is located on the island of the same name which is connected with the mainland by a road bridge and a railway dam leading to Lindau Hauptbahnhof, Lindau station. History The first use of the name Lindau was documented in 882 by a monk from St. Gallen, stating that Adalbert (Raetia, count of Raetia) had founded a nun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liechtenstein
Liechtenstein (), officially the Principality of Liechtenstein (german: link=no, Fürstentum Liechtenstein), is a German-speaking microstate located in the Alps between Austria and Switzerland. Liechtenstein is a semi-constitutional monarchy headed by the prince of Liechtenstein. Liechtenstein is bordered by Switzerland to the west and south and Austria to the east and north. It is Europe's fourth-smallest country, with an area of just over and a population of 38,749 (). Divided into 11 municipalities, its capital is Vaduz, and its largest municipality is Schaan. It is also the smallest country to border two countries. Liechtenstein is a doubly landlocked country between Switzerland and Austria. Economically, Liechtenstein has one of the highest gross domestic products per person in the world when adjusted for purchasing power parity. The country has a strong financial sector centred in Vaduz. It was once known as a billionaire tax haven, but is no longer on any officia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
18th-century German Cartographers
The 18th century lasted from January 1, 1701 ( MDCCI) to December 31, 1800 ( MDCCC). During the 18th century, elements of Enlightenment thinking culminated in the American, French, and Haitian Revolutions. During the century, slave trading and human trafficking expanded across the shores of the Atlantic, while declining in Russia, China, and Korea. Revolutions began to challenge the legitimacy of monarchical and aristocratic power structures, including the structures and beliefs that supported slavery. The Industrial Revolution began during mid-century, leading to radical changes in human society and the environment. Western historians have occasionally defined the 18th century otherwise for the purposes of their work. For example, the "short" 18th century may be defined as 1715–1789, denoting the period of time between the death of Louis XIV of France and the start of the French Revolution, with an emphasis on directly interconnected events. To historians who expand the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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