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The Panopticon is a type of institutional building designed by the English philosopher and social theorist Jeremy Bentham in the late 18th century. The concept of the design is to allow all (''pan-'') inmates of an institution to be observed (''-opticon'') by a single watchman without the inmates being able to tell whether or not they are being watched. Although it is physically impossible for the single watchman to observe all cells at once, the fact that the inmates cannot know when they are being watched means that all inmates must act as though they are watched at all times, effectively controlling their own behaviour constantly. The name is also a reference to Panoptes from Greek mythology; he was a giant with a hundred eyes and thus was known to be a very effective watchman. The design consists of a circular structure with an "inspection house" at its centre, from which the manager or staff of the institution are able to watch the inmates, who are stationed around the perimeter. Bentham conceived the basic plan as being equally applicable to hospitals, schools, sanatoriums, daycares, and asylums, but he devoted most of his efforts to developing a design for a Panopticon prison, and it is his prison which is most widely understood by the term. Bentham himself described the Panopticon as "a new mode of obtaining power of mind over mind, in a quantity hitherto without example." Elsewhere, in a letter, he described the Panopticon prison as "a mill for grinding rogues honest". == Conceptual history == In 1786 and 1787, Bentham travelled to Krichev in White Russia (modern Belarus) to visit his brother, Samuel, who was engaged in managing various industrial and other projects for Prince Potemkin. It was Samuel (as Jeremy later repeatedly acknowledged) who conceived the basic idea of a circular building at the hub of a larger compound as a means of allowing a small number of managers to oversee the activities of a large and unskilled workforce. Jeremy began to develop this model, particularly as applicable to prisons, and outlined his ideas in a series of letters sent home to his father in England. He supplemented the supervisory principle with the idea of ''contract management''; that is, an administration by contract as opposed to trust, where the director would have a pecuniary interest in lowering the average rate of mortality. The Panopticon was intended to be cheaper than the prisons of his time, as it required fewer staff; "Allow me to construct a prison on this model," Bentham requested to a Committee for the Reform of Criminal Law, "I will be the gaoler. You will see... that the gaoler will have no salary—will cost nothing to the nation." As the watchmen cannot be seen, they need not be on duty at all times, effectively leaving the watching to the watched. According to Bentham's design, the prisoners would also be used as menial labour walking on wheels to spin looms or run a water wheel. This would decrease the cost of the prison and give a possible source of income. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Panopticon」の詳細全文を読む スポンサード リンク
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