{"resolved":true,"match_type":"uuid","source_type":"original_book","book_id":"967ec6d9-829f-4b06-83ed-16459bf5638b","title":"时间的全球史（The Global Transformation of Time）","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787308198882","requested_by":"printed_page","book":{"source_type":"original_book","book_id":"967ec6d9-829f-4b06-83ed-16459bf5638b","id":"967ec6d9-829f-4b06-83ed-16459bf5638b","uuid":"967ec6d9-829f-4b06-83ed-16459bf5638b","title":"时间的全球史（The Global Transformation of Time）","normalized_title":"时间的全球史theglobaltransformationoftime","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787308198882","isbns":["9787308198882"],"parsed":true,"ai_readable":true,"document_type":"book","page_count":362,"navigation_url":"https://workshop.closeclaw.top/ai/book/967ec6d9-829f-4b06-83ed-16459bf5638b","title_url":"https://workshop.closeclaw.top/ai/title/%E6%97%B6%E9%97%B4%E7%9A%84%E5%85%A8%E7%90%83%E5%8F%B2%EF%BC%88The%20Global%20Transformation%20of%20Time%EF%BC%89","fixed_page_url_template":"https://workshop.closeclaw.top/ai/book/967ec6d9-829f-4b06-83ed-16459bf5638b/page/{printed_page}","path_api_url_template":"https://workshop.closeclaw.top/api/ai/book/967ec6d9-829f-4b06-83ed-16459bf5638b/page/{printed_page}","read_url":"https://workshop.closeclaw.top/api/ai/read/967ec6d9-829f-4b06-83ed-16459bf5638b","page_url":"https://workshop.closeclaw.top/api/ai/books/967ec6d9-829f-4b06-83ed-16459bf5638b/page","search_url":"https://workshop.closeclaw.top/api/ai/books/967ec6d9-829f-4b06-83ed-16459bf5638b/search"},"page":{"printed_page":14,"pdf_page":23,"physical_index":23,"physical_index_base":0,"printed_page_status":"recognized","page_sha256":"953cd6e0dbf4d06f19ce00e8952bc4960b1c2edc5d0fe30814521a3f81a16839"},"chapter":"Copyright © 2015 by the President and Fellows of Harvard College Published by arrangement with Harvard University Press through Bardon-Chinese translation copyright © (2017) hy Zhejiang University Press Co., Ltd.","content":"除中世纪和近代早期这两个时期外，时间还吸引了研究19世纪的历史学家的注意力，特别是研究美国以及法国科学的历史学家。有关时间分发服务的商业化、对新时间系统的广泛不信任、公共时钟的推广，以及美国参与由国际科学家和天文台职工游说采取统一时区的国际运动，这些叙述大量存在。因有关时间的科学知识和通信技术的影响，时间改革的故事通常由科学和技术史家进行叙述。这些叙述分析了他们在时间测量手段方面遇到的挑战，这些挑战一直让至少从地理大发现时代以降的天文学家、地图绘制者、航海家、钟表匠，以及他们为之服务的统治者烦恼不已。吃航海饭的人尤其渴求足够精准而稳定的计时器，能够带到船上确保时间正确。诸多国家，比如英国和法国，出于帝国和商业的缘故，始终依赖航海，它们慷慨地拿出奖品酬谢任何能够解决如何能在海上找准经度问题的人。其中原因在于，时间和空间密不可分。地球一次完整的自转，完成时间是24小时，等于360度。因此，一个小时可以表示为15个经度。两地之间的经度就等于两点之间的时差。如果一个航海家知道在一个确定地点，比方说旅程的起点，与处于某个地点的船所在的本地时间之间的时差，那么，他就能知晓一艘船相对于确定地点的所在位置。25\n\n时间的全球史\n\n014","previous_page":13,"next_page":15}