Geodesy Collection

Carl Friedrich Gauss and Wilhelm Eduard Weber
3585803 Carl Friedrich Gauss and Wilhelm Eduard Weber; (add.info.: Portraits of Carl Friedrich Gauss (1777-1855) a German mathematician and Wilhelm Eduard Weber (1804-1891)

Carles Ibanez i Ibanez de Ibero, Marquis of Mulhacen (1825-1890), Catalan military and geodesy expert

Circumference of the Earth. Leonardo da Vinci (1452-1519) de
Circumference of the Earth. Eratosthenes (250 BC) calculated the circumference of the Earth by measuring noontime shadows at two localities of different latitude

Carlos Ibanez de Ibero (1825-1891). Engraving. Colored
Carlos Ibanez de Ibero (1825-1891). Spanish General. Engraving by Paris. The Spanish and American Illustration, 1876. Colored

Gravity map of Earth C018 / 9377
Gravity map of Earth. Computer model showing the variation of the Earths gravity field. Colours represent gravity anomaly

Gravity map of Earth C018 / 9376
Gravity map of Earth. Computer model showing the variation of the Earths gravity field centred on the Asia. Colours represent gravity anomaly

Gravity map of Earth C018 / 9374
Gravity map of Earth. Computer model showing the variation of the Earths gravity field centred on the Americas. Colours represent gravity anomaly

Gills Egypt baseline survey, 1875
Gills Egypt baseline survey. British astronomer David Gill (1843-1914, centre) using an altazimuth to carry out a baseline survey in 1875 from the roof of the Hotel de L Europe

Felix Vening Meinesz, Dutch geophysicist C013 / 7252
Felix Andries Vening Meinesz (1887-1966), Dutch geophysicist. Vening Meinesz is best known for inventing a method for the accurate measurement of gravity

Astronomical instrument. Historical artwork of an altazimuth instrument, which also houses a telescope. Altazimuths are used to measure altitude and azimuth

Theodolite. A theodolite is an engineering instrument used for measuring both horizontal and vertical angles

Measuring a degree of the meridian, 1736
Measuring a degree of the meridian. In 1736-7 the French mathematician Pierre Maupertuis was sent by the French Academy of Sciences to Finland to measure a degree of the meridian at the Arctic

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Geodesy, the science of measuring and understanding Earth's shape and gravitational field, has fascinated minds throughout history. From Leonardo da Vinci to Carlos Ibanez de Ibero, brilliant individuals have contributed to our knowledge of this vast subject. Leonardo da Vinci (1452-1519), a true Renaissance genius, pondered over the circumference of the Earth. His curiosity led him to explore various aspects of geodesy, leaving behind invaluable insights for future generations. Carlos Ibanez i Ibanez de Ibero, Marquis of Mulhacen (1825-1890), further expanded on geodesy with his meticulous engravings. Through his detailed artwork, he captured the essence and complexity of this scientific discipline. Gravity maps play a crucial role in geodesy as they reveal variations in Earth's gravitational field. The colorful gravity maps C018/9377, C018/9376, and C018/9374 provide valuable information about our planet's composition and structure. Gills Egypt baseline survey conducted in 1875 is another remarkable milestone in geodesy. This survey laid down precise measurements that formed the foundation for modern mapping techniques still used today. Felix Vening Meinesz was a Dutch geophysicist who made significant contributions to geodesy. His work revolutionized underwater gravity measurements using innovative instruments like theodolites and astronomical instruments. Geodesy encompasses an array of fascinating tools such as theodolites - precise optical instruments used for measuring angles between visible points. These devices have been instrumental in accurately determining distances on land or at sea. As we delve into the world of geodesy, we uncover not only facts about our planet but also marvel at humanity's relentless pursuit of knowledge, and is through these endeavors that we gain a deeper understanding of Earth's mysteries while appreciating its immense beauty from every angle imaginable.