The internal surveying of a tunnel is carried out using a surveying theodolite. This theodolite, which is now available as a 3D model, was used for surveying the Lötschberg tunnel. The triangulation of Lötschberg tunnel was carried out between 25 August and 8 September 1906 … Read more
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
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
This 18th century theodolite is part of the Observatory Collection. It was created by Rudolf Wolf (1816-1893). He was a professor of astronomy, head of the Semper Observatory, director of the library of the Polytechnic (present-day ETH) and collector of astronomical instruments. He created an … Read more
A theodolite is used to measure angles, for example in engineering, architecture or surveying. This theodolite is a travel theodolite dating from 1899. Due to its small size and low weight, it was well suited for use on excursions. ETH acquired this theodolite in 1899. … Read more
This theodolite, called the WILD T2 universal theodolite, was purchased by ETH in 1923. This was also the year in which the Geodetic Institute was officially mentioned for the first time; this happened during the summer semester. However, geodesy and topography had already been taught … Read more