Apollonian circles

Aug 4, 2024 -- 16:00

Apollonian circles is an invisible spatial sound composition made of 8 different-sized circles rotating at different speeds. It is a representation of a geometric phenomenon called Apollonian circles.
In geometry, Apollonian circles are two families (pencils) of circles such that every circle in the first family intersects every circle in the second family orthogonally, and vice versa. These circles form the basis for bipolar coordinates. They were discovered by Apollonius of Perga c. 240 BCE/BC – c. 190 BCE/BC.

Gerard Lebik is a sound artist, improviser, composer, and the artistic director and curator of the Sanatorium of Sound Festival in Sokolowsko, Poland. He works with experimental, improvised, and intermedia...