3D Collection – a Universal Instrument for Land Surveying

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Like the T2 universal theodolite and the travel theodolite, this triangulation theodolite also originated from the Institute of Geodesy and Photogrammetry. According to the order book, the Institute – which was still called the Geodetic Institute at the time – purchased it for 1725 in 1902. It is … Read more

3D Collection – a Renaissance Wooden Sundial

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Very little is known about this Renaissance wooden sundial. Based on an inscription on the floor inside the cube, we know that it was painted, or at most also made, by painter Jakob Hofmann from Schwäbisch Hall in 1597. This Renaissance painter was born in … Read more

3D Collection – a Target Marker for the Construction of the Simplon Tunnel

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This target marker was added to the collection of scientific instruments and teaching aids together with around 320 other surveying instruments from the Institute of Geodesy and Photogrammetry. It was used for surveying work during the construction of the Simplon Tunnel. The Simplon Tunnel The … Read more

3D Collection – a Cube Sundial from the 18th Century

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This cube-shaped sundial comes from Rudolf Wolf‘s collection. According to his inventory dating from 1873, this sundial was one which he purchased. Sundials were a focal point of Wolf’s collection and he seemed interested in collecting and comparing as many models from various eras as … Read more

3D Collection – a Breeding Bull by Max Landsberg

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This animal model is one of a total of seven that the collection of scientific instruments and teaching aids managed to acquire from the former Institute for Animal Breeding. Models in teaching & research  Animal sculptures like these were used for teaching purposes in agricultural … Read more

3D Collection – a Universal Sun Ring for Telling the Time

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This universal sun ring comes from the former collection of Rudolf Wolf (1816-1893). Wolf’s inventory dating from 1873 does not state clearly whether the universal sun ring was incorporated into the Wolf collection as a purchase or a donation. An improvement of the hanging sundial … Read more

Oppenheimer on his first encounters with Einstein

In Christopher Nolan’s film Oppenheimer about the “father of the atomic bomb,” the figure of Albert Einstein plays an important supporting role. Several times and at crucial points in the film, J. Robert Oppenheimer seeks the advice of and exchanges ideas with Albert Einstein. Only about the first encounter between the two the film tells nothing.

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3D Collection – a Ring Sundial for Travelling

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This ring sundial comes from the former collection of Rudolf Wolf (1816-1893). The ring sundial is listed but not dated in Rudolf Wolf’s 1873 inventory, and no mention is made of the manufacturers Christian Jenderich and J. Linzner. Ring sundials Portable ring sundials can be … Read more

3D Collection – a Telescope with Two Mirrors

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This reflecting telescope belongs to the Observatory Collection. It was created by Rudolf Wolf (1816-1893). He was a professor of astronomy, head of Semper Observatory, director of the library of the Polytechnic (today ETH) and collector of astronomical instruments. He created an inventory of his collection in … Read more

3D Collection – an Anemometer for the Field

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Prior to its incorporation into the collection of scientific instruments and teaching aids, this anemometer – also referred to as a cup cross anemometer – was part of the former Rübel Geobotanical Research Institute. The collection is now home to 71 objects from this institute. … Read more