Catmachine

The Science Museum was another matter altogether. Sometimes I entered it from the passage that led from the Natural History Museum and on other occasions I approached from the main entrance in Exhibition Road - at the far end of the " Foot Tunnel to Museums " that led from the tube station; a tunnel so long that the end appeared to disappear with the perspective and you wondered whether it had originality been designed to carry trains. The entrance to the Science Museum was deceptive - it was nothing like the grandiose frontage of the Natural History Museum but more like you imagined a Victorian office building or part of the Ministry of the Defence. However the interior took you by surprise - a cavernous hall filled with light and lined with machines in glass cases, brass mechanisms the purpose of which was often obscure. Off to one side a wide curved staircase surrounded a stairwell in which an enormous pendulum swung to demonstrate the rotation of the earth. It was