Coal Mine Prosper Haniel V – Hydraulic Impact Wrench
In December 2018 Prosper Haniel, the last active coal mine of the Ruhr area, was closed down. Before the end “Sounds of…
Goldsmith welding with a blowtorch
00:00
02:21
About the sound
Goldsmith heats a golden diamond ring to be molded for a stone setting.
A blowtorch is ideal for heating and also for small meltings.
Controlled by a footpedal, the torch sucks air directly from the atmosphere, so no oxygen bottles are needed.
Master goldsmith David Bendecon has a goldsmith's shop in the 19th century artisan’s residence in Jyväskylä, Toivola old courtyard.
Video and sound recording: Leena Ahonen
Photographer: Leena Ahonen
Discover more
Saab J 35D Draken – start engine and taxiing
Taxiing, also sometimes written "taxying", is the movement of an aircraft on the ground, under its own power, in contrast to towing…
The sewage treatment plant (10): biological reactors
Soundscape recorded on the platform above the biological reactor. The plant has five biological reactors each with a capacity of 27,000 m3…
Shovel and bucket (forge)
A forge typically uses bituminous coal, industrial coke or charcoal. Once specific coal for forging was the norm. But it had the…