New York artist Devorah Sperber combines commonplace materials with simple optical devices to investigate the connections between art, perception and technology. Her works address the complex relationship between the way we think we see and the way that the brain actually processes images. Her most recent works examine famous paintings from art history. Sperber uses the computer to pixelate the images and then reproduces the pixels with thousands of spools of coloured thread. She then inverts the spool-constructed pictures so that the image is viewed upside down and recognizable only when viewed through an acrylic sphere. To the naked eye the thread spool sculpture appears as patterns of colour, but when viewed through the specially designed acrylic sphere, the images spring into focus.