IN SITU: Alexandre Estrela – Roda Lume
Sistema solar [Solar System] is based on a scientific communication delivered at Stanford University, in which a researcher explains the translation of solar radiation into sound. The video illustrates the explanation by means of a hypothetical planetary model constituted by three watermelons hanging on a tree. The image is composed of two similar snapshots which, when seen rapidly in succession, generate a stereoscopic effect, creating a three-dimensional illusion. The watermelons move separately in reaction to the sound, exemplifying three types of solar frequencies. The video presents itself as a three-dimensional physics model that vibrated responding to the effects of the sun.
Estrela, A. Meio Concreto. Fundação de Serralves, Porto, 2013. p. 129