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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Jewish law in the polar regions ： ウィキペディア英語版 Jewish law in the polar regions The observance of Jewish law (halakhah) in the polar regions of Earth presents unique problems. Many mitzvot, such as Jewish prayer and the Jewish sabbath, rely on the consistent cycle of day and night in 24-hour periods that is commonplace in most of the world. However, north of the Arctic Circle (and south of the Antarctic Circle) a single period of daylight can last for a month or more during the summer, and the night lasts for a similar length of time in the winter. The question for religious Jews that live in, and visit these regions, is how to reconcile the observed length of days in the polar regions with common practice elsewhere in the world. Should a "day" be defined solely based on sunrise and sunset, even if these events do not occur for long stretches of time; or should the definition of a polar "day" be consistent with the length of a day in the rest of the world? The problem was first identified in the 18th century, when Jewish émigrés began to move in greater numbers to the northern parts of Scandinavia. A number of different opinions on the question have been presented in responsa and are reviewed in a recent essay.〔"''Mizvot'' in the Polar Regions and in Earth Orbit." J. David Bleich. ''Contemporary Halakhic Problems, volume 5'', chapter 3, pages 75-128. Targum Press, 2005. ISBN 1-56871-353-3〕 ==Scope of the problem== The definition of a "day" in polar regions affects mitzvot that must be performed during the day, or at a particular time of day. It also affects the passage of time in the Jewish calendar for the purpose of observing Shabbat and other Jewish holidays. 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「Jewish law in the polar regions」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.