TESTING: Rosie Millard, columnist and former BBC arts correspondent, takes a hands-on approach with the Landform Ueda artwork by Charles Jencks at the Gallery of Modern Art in Edinburgh as one of the four judges of the Gulbenkian Prize. The work is among four finalists for the (pounds) 100,000 prize, awarded to a museum or gallery. The other judges are Mark Bolland, former deputy private secretary for the Prince of Wales, Dr Mark Lythgoe, neurophysiologist, and Peter Jenkinson, national director of Creative Partnerships.