Ultrasonic Cleaner
The ultrasonic washing is based on high-frequency sound vibrations, which cause strong cavitation in liquid. Microscopic cavitation bubbles implode on the surface…

This is the soundscape of how it sounds being a viewer of the annual pride parade in Stockholm. The soundscapes stretches for about two hours, although that is not the entirety of the parade. It went on for almost four hours, but the gazing sun took its toll on us viewers. This year Stockholm was the pride capital of Europe, meaning that there was more international focus in general and a lot of visitors from many different European countries. Pride celebrates the LGBT+ community since it in many countries still to this day is illegal to love whomever you want, or just be the person you were born to be.
Photo and recording by Erik Pålsson.
The ultrasonic washing is based on high-frequency sound vibrations, which cause strong cavitation in liquid. Microscopic cavitation bubbles implode on the surface…
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