Ghosts
Our interest in ghosts is imperishable; a UK survey has found that more people believe in ghosts than in God. Some have suggested that haunted places have ‘psychometric imprints’ – that previous traumatic events that took place there have left an indelible impression – and it’s also said that older, denser materials such as granite are better ‘conductors’ of the imprint, thus explaining spirits’ penchant for castles. Others have more prosaic theories. For instance, a computer expert who worked in a ‘haunted’ laboratory traced the cause of the cold sweats and visions of grey figures experienced by his fellow workers to the physiological effects of the lowfrequency vibrations of an extractor fan.