Peter Liversidge’s working method begins at his typewriter, hand-typing proposals for an array of possible and impossible ideas for performances and artworks in almost every conceivable medium. In a sense, the first realisation of every work is in Peter’s head, then on the page, then in the mind of the reader, and finally (perhaps) as a physical object or happening. Ideas around time often surface in his work and manifest here in a kind of cosmic calculation measuring the lengthening of an earthly day over time. From Home, suspends a tape measure indicating how far the moon has moved away from the earth since the moon landing on 20 July 1969. It currently stands 197cms from the ground, marking an annual shift of 3.82 cm as the moon’s gravitational pull weakens. Closer to home his pairs of Polaroids mark a more personal kind of measurement, as the artist takes a photograph, and waits in complete stillness for it to develop, before attempting to take a second version as an identical replica of the first. An impossible task - as something in the way light falls has always shifted in the passing minutes.