Hammer drill
The pneumatically driven hammer drill by the manufacturer Flottmann-Werke drills holes into soft or medium-hard rock (for detonations, for example). It was…

Saw & Theremin duo performing at Tekotaiteellisen paskan festivaali (roughly translatable to Festival of Pseudo-artistic Crap). The event is part of traditional Yläkaupungin yö city festival in Jyväskylä.
In the audio (and in the video) you can hear traditional saw playing combined with theremin and pre-recorded soundscapes.
Musical saw is usually played with a violin or a cello bow to produce ethereal glissando sounds.
Theremin is an electronic instrument which was invented by a Soviet inventor Léon Theremin in 1920. You play the instrument without physically touching it. The instrument has two metal antennas attached to oscillators and the operator moves his/her hands closer and further from the antennas to control the pitch and the volume of the sound.
Sound recorder, video recorder, photographer: Antti Makkonen
The pneumatically driven hammer drill by the manufacturer Flottmann-Werke drills holes into soft or medium-hard rock (for detonations, for example). It was…
Ilosaarirock Festival is an annual rock festival held in Joensuu, Finland. The festival was founded in 1971 and it is the second…
The sound of the engine of an overhead monorail locomotive starting up. The locomotive makes a warning signal as it starts up.…
Operation of the chlorine dioxide production generators for water disinfection. A chemical reaction occurs in the generators; as a result of mixing…