Modern Art, London The mathematically named new works of Along the River are disorienting, illusive and seem to offer a flash of the secret sequences that underpin the physical world Why do we find things beautiful? More precisely, why do some paintings of coloured dots in rippling patterns inspire in me something like revelation? The idea that beauty is the feeling you get when encountering truth is unfashionable in the arts, but lingers in the sciences. The physicist Paul Dirac once proposed t