i called in to see halo, an installation at st stephens walbrook as part of the london design festival. a pendulum loops round henry moore's altar with a light that moves up and down completing loops. a long exposure photo creates the halo effect. above are ambient projections looking like the northern lights. it was well done. for what it's worth my own take was that it would be interesting to expand this project conceptually by exploring notions of the sacred elsewhere - locating the halo outside the church walls.