The sewage treatment plant (9): primary settling tanks
Sounds recorded above the primary settling tank. It is one of four round tanks in which the last stage of mechanical treatment…

The sound of a metal rod on the tram tracks in front of hall F of the Museum of Urban Engineering.
The complex of buildings at ul. Św. Wawrzyńca is unique in Europe, being the only surviving complex of depots, documenting the continuity of the development of public transport from the introduction of the horse tram, through the narrow-gauge and standard-gauge electric tram to buses. The whole complex was built in phases in the late 19th and the early 20th century. A track and overhead contact line lead to the former standard gauge depot hall, which can be used by both historical and contemporary trams. All the trams presented at the exhibition are operational and ride into the museum on their own wheels.
Sound recording: Marcin Dymiter aka Emiter
Photo: Iwo Wachowicz
Sounds recorded above the primary settling tank. It is one of four round tanks in which the last stage of mechanical treatment…
Sound of the water wheel of the floating mill on the Island of Love. The mill is mounted on two interconnected floating…
Manufacturer: Himmelwerk dB: 77-88 Recording distance: 1,5m In the sixth step of assembling this wooden box, the milling machine is used to…
Malmens Flygplats (Malmen Airbase) in Linkoping Sweden have been in operation since 1913 but military activities in the area goes back much…