Doppler Effect by Petja Heiskanen & Ronja Siitonen

... An apple falling on Newton’s head or a line said in a movie. A rotten apple that tastes like dirt. I bite into it in that cold frost and think of summer. ...

The Doppler effect refers to an increase or decrease in the frequency of sound, light, or other waves as the source and observer move toward or away from each other. In sound waves it can be heard in everyday life, but with light waves the effect is not observable with the human eye. In this project researchers P & R try to catch the Doppler effect in its visual form with interviews, speculation, imagination and photographic methods. The publication is made up of two parallel zines (DE Documents & Red Shift).

Petja Heiskanen and Ronja Siitonen are Helsinki-based visual artists working mainly with photography, video, and text. Doppler Effect is a collaborative project in which they combine their artistic practices.