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For decades the tiny upstate New York farmhouse on the corner of Parker and Hydesville roads in Newark was known as the ‘ spook house ’ because of the mysterious rappings heard there in 1848 that introduced Americans to spiritualism — the belief that certain individuals called mediums could communicate with the dead . It demonstrates how urban temperatures are typically lower at the urban-rural border than in dense downtown areas . I imagine there could be scenarios where that is desired by the customer , for example to combat viruses or malware in a corporate environment , but it 's certainly something I do n't want in hardware I own . A lot of socially concerned literary criticism seems to find its own “ ethical pleasure ” by revealing guilt in literature : that this author was not informed or conscious of the ethical consequences of his writing , and so on . Some materials exhibit a property known as the photoelectric effect that causes them to absorb photons of light and release electrons . News of the girls ’ alleged ability to communicate with the dead soon spread and the spiritualism movement was born .