Arduino, Processing
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>200 °C – The autonomous feedback system for Leidenfrost effect

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Created by Matthias Grund, Kadir Inan and Wookseob Jeong at the Köln International School of Design, >200 °C is the outcome of the long-term “Self-Moving Materials and Artifacts” project supervised by Prof. Dr. Carolin Höfler and Prof. Andreas Muxel in the area of Design Theory and Research / Interface Design.

The installation is imagined as a closed feedback system that combines computer vision technologies with a poetic perspective of the physical occurrence called Leidenfrost effect – which describes a physical phenomenon in which a liquid, in near contact with a mass significantly hotter than the liquid’s boiling point, produces an insulating vapor layer keeping that liquid from boiling rapidly. Due to this ‘repulsive force’, a droplet hovers over the surface rather than making physical contact with it (→ wikipedia).

A camera tracks the movements of the drops. While the surface is hotter than 200 degrees the water hovers. Each valve is assigned to a field in the 3×3 grid that splits the plate into zones. If the zone hits a certain level of activity the assigned valve drops another drop. The tracking provides the opportunity to let the drops create an autonomous system. Thus the interaction with the valves results in more drops that are also interacting with them as well as directly with other drops.

Created using ArduinoProcessing and OpenCV.

Project Page

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