Moving stuff at the Roundhouse: Wayne McGregor & Random International

A flock of seven white spheres powered by tiny propellers performed without a collision, or other hitch, at north Londons Roundhouse at the weekend. The inflatables took to the air and completed a mesmerising aerial display while dancers from the Royal Ballet and Company Wayne McGregor performed below. The human-meets-machine performance piece called  +/-Human is the latest collaboration by the London- and Berlin-based artists Random International and McGregor, the resident