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GRAVITATIONAL CONUNDRUM: CONFUSING CLOCK-RATE MEASUREMENTS ON THE 'FIRST FLEET’ FROM ENGLAND TO AUSTRALIA 引力难题：从英国到澳大利亚的“第一舰队”令人困惑的时钟频率测量
IF 0.2
Journal of Astronomical History and Heritage Pub Date : 2022-11-21 DOI: 10.3724/sp.j.1440-2807.2022.04.04
R. Grijs
{"title":"GRAVITATIONAL CONUNDRUM: CONFUSING CLOCK-RATE MEASUREMENTS ON THE 'FIRST FLEET’ FROM ENGLAND TO AUSTRALIA","authors":"R. Grijs","doi":"10.3724/sp.j.1440-2807.2022.04.04","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2022.04.04","url":null,"abstract":"Voyages of exploration often included astronomers among their crew to aid with maritime navigation. William Dawes, a British Marine who had been trained in practical astronomy, was assigned to the\"First Fleet\", a convoy of eleven ships that left England in May 1787 bound for Botany Bay (Sydney, Australia). Dawes was also expected to take measurements of the local gravitational acceleration, $g$, at any port of call by measuring the daily rate by which his Shelton pendulum clock differed from that at Greenwich, its calibration location. Although Dawes and Nevil Maskelyne, Britain's fifth Astronomer Royal, had planned to obtain clock-rate measurements in the Canary Islands, San Sebastian (Rio de Janeiro) and Table Bay, Captain Arthur Phillip, Commander of the First Fleet, only allowed Dawes to disembark the clock in Rio de Janeiro. Therefore, we have just one set of clock-rate measurements from the voyage, in addition to land-based measurements obtained in New South Wales. If gravity was the dominant factor affecting the clock's changing rate, Dawes' measurement of $-48.067$ sec per (sidereal) day obtained in Rio de Janeiro implies a local gravitational acceleration, $g = 9.7946$ m sec$^{-2}$. On the other hand, if we adopt the modern value, $g = 9.7878$ m s$^{-2}$, the implied daily decay rate is almost exactly 30 sec greater than Dawes' clock-rate determination, a difference that is well in excess of the prevailing uncertainties. This suggests that the pendulum's regulator nut may have been offset by a full turn, thus implying that our assumptions regarding the pendulum length may have to be revisited.","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":" ","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48873562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
THE ORIGINS AND LEGACY OF 'KEPLER'S GAP' 开普勒缺口的起源与遗产
IF 0.2
Journal of Astronomical History and Heritage Pub Date : 2022-09-01 DOI: 10.3724/sp.j.1440-2807.2022.03.02
C. Cunningham
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引用次数: 0
A Treatise on Moon Maps: Visual Studies on Paper, 1610-1910, by Francis J. Manasek. 《月球地图论文：纸上视觉研究，1610-1910》，弗朗西斯·马纳塞克著。
IF 0.2
Journal of Astronomical History and Heritage Pub Date : 2022-09-01 DOI: 10.3724/sp.j.1440-2807.2022.03.18
W. Orchiston
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引用次数: 0
OBITUARY: WILLIAM TOBIN (1953–2022) 讣告：威廉·托宾（1953–2022）
IF 0.2
Journal of Astronomical History and Heritage Pub Date : 2022-09-01 DOI: 10.3724/sp.j.1440-2807.2022.03.10
J. Lequeux
{"title":"OBITUARY: WILLIAM TOBIN (1953–2022)","authors":"J. Lequeux","doi":"10.3724/sp.j.1440-2807.2022.03.10","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2022.03.10","url":null,"abstract":"","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":" ","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43897690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gaṇitagannaḍ: Mirror of Mathematics, An Astronomy Text of 1604 CE in Kannada by Śankaranārāyana Joisaru of Śṛngeri, translated and with a mathematical analysis by B.S. Shylaja and Seetharama Javagal. Gaṇ伊塔甘纳ḍ: 数学之镜，公元1604年卡纳达的天文学文本ṛngeri，由B.S.Shylaja和Seetharama Javagal翻译并进行数学分析。
IF 0.2
Journal of Astronomical History and Heritage Pub Date : 2022-09-01 DOI: 10.3724/sp.j.1440-2807.2022.03.17
S. B. Rao
{"title":"<italic>Gaṇitagannaḍ: Mirror of Mathematics, An Astronomy Text of 1604 CE in Kannada by Śankaranārāyana Joisaru of Śṛngeri</italic>, translated and with a mathematical analysis by B.S. Shylaja and Seetharama Javagal.","authors":"S. B. Rao","doi":"10.3724/sp.j.1440-2807.2022.03.17","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2022.03.17","url":null,"abstract":"","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":" ","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43647640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Michael Maestlin’s Manuscript Treatise on the Comet of 1618: An Edition and Translation of Manuscript WLB Stuttgart, Cod. Math. 4° 15b, Nr. 8, by Miguel Granada and Patrick Boner (eds.) Michael Maestlin关于1618年彗星的手稿论文：手稿WLB Stuttgart的版本和翻译，Cod。数学Miguel Granada和Patrick Boner（编辑）的4°15b，编号8
IF 0.2
Journal of Astronomical History and Heritage Pub Date : 2022-09-01 DOI: 10.3724/sp.j.1440-2807.2022.03.15
C. Cunningham
{"title":"<italic>Michael Maestlin’s Manuscript Treatise on the Comet of 1618: An Edition and Translation of Manuscript WLB Stuttgart, Cod. Math. 4° 15b, Nr. 8</italic>, by Miguel Granada and Patrick Boner (eds.)","authors":"C. Cunningham","doi":"10.3724/sp.j.1440-2807.2022.03.15","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2022.03.15","url":null,"abstract":"","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":" ","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44983249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigating Art, History and Literature with Astronomy: Determining Time, Place, and Other Hidden Details Linked to the Stars, by Donald W. Olsen. 《用天文学研究艺术、历史和文学：确定时间、地点和其他与恒星有关的隐藏细节》，唐纳德·W·奥尔森著。
IF 0.2
Journal of Astronomical History and Heritage Pub Date : 2022-09-01 DOI: 10.3724/sp.j.1440-2807.2022.03.16
Marion Dolan
{"title":"<italic>Investigating Art, History and Literature with Astronomy: Determining Time, Place, and Other Hidden Details Linked to the Stars</italic>, by Donald W. Olsen.","authors":"Marion Dolan","doi":"10.3724/sp.j.1440-2807.2022.03.16","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2022.03.16","url":null,"abstract":"","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":" ","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47059294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IAU COMMISSION C3 PROJECT GROUP ON ASIAN ASTRONOMY: PROGRESS REPORT, 2019–2021 Iau委员会c3亚洲天文学项目组:进展报告，2019-2021
IF 0.2
Journal of Astronomical History and Heritage Pub Date : 2022-09-01 DOI: 10.3724/sp.j.1440-2807.2022.03.11
W. Orchiston, B. Shylaja
{"title":"IAU COMMISSION C3 PROJECT GROUP ON ASIAN ASTRONOMY: PROGRESS REPORT, 2019–2021","authors":"W. Orchiston, B. Shylaja","doi":"10.3724/sp.j.1440-2807.2022.03.11","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2022.03.11","url":null,"abstract":"","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":" ","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47155893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
HENRI DESLANDRES: FROM MOLECULAR TO SOLAR PHYSICS 亨利·德斯兰德:从分子物理学到太阳物理学
IF 0.2
Journal of Astronomical History and Heritage Pub Date : 2022-09-01 DOI: 10.3724/sp.j.1440-2807.2022.03.09
J. Lequeux
{"title":"HENRI DESLANDRES: FROM MOLECULAR TO SOLAR PHYSICS","authors":"J. Lequeux","doi":"10.3724/sp.j.1440-2807.2022.03.09","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2022.03.09","url":null,"abstract":"","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":" ","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45208630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
ON THE ORIGIN OF THE KEPLERIAN TELESCOPE 关于开普勒望远镜的起源
IF 0.2
Journal of Astronomical History and Heritage Pub Date : 2022-09-01 DOI: 10.3724/sp.j.1440-2807.2022.03.07
P. Molaro
{"title":"ON THE ORIGIN OF THE KEPLERIAN TELESCOPE","authors":"P. Molaro","doi":"10.3724/sp.j.1440-2807.2022.03.07","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2022.03.07","url":null,"abstract":"","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":" ","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45013677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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