地球周長 (Chinese Wikipedia)
Analysis of information sources in references of the Wikipedia article "地球周長" in Chinese language version.
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archive.org
- Russo, Lucio. The Forgotten Revolution
. Berlin: Springer. 2004: 273–277. - The_Aryabhatiya_of_Aryabhata_Clark_1930.
arxiv.org
- Kak, Subhash. Aryabhata's Mathematics. 2010. arXiv:1002.3409
[cs.CR].
attalus.org
- Posidonius, fragment 202 （页面存档备份，存于互联网档案馆）
books.google.com
- Shashi Shekhar; Hui Xiong. Encyclopedia of GIS. Springer Science & Business Media. 12 December 2007: 638–640. ISBN 978-0-387-30858-6.
- John Freely, Before Galileo: The Birth of Modern Science in Medieval Europe (2012)
- Journal of the Royal Asiatic Society of Great Britain and Ireland. 1907.
- Gow, Mary. "Measuring the Earth: Eratosthenes and His Celestial Geometry, p. 6 (Berkeley Heights, NJ: Enslow, 2010).
- Alder, Ken. The Measure of All Things: The Seven-Year Odyssey and Hidden Error That Transformed the World. Simon and Schuster. October 2003. ISBN 978-0-7432-1676-0.
doi.org
- Donald Engels (1985). The Length of Eratosthenes' Stade （页面存档备份，存于互联网档案馆）. American Journal of Philology 106 (3): 298–311. doi:10.2307/295030
. - Rawlins, Dennis. The Erathostenes-Strabo Nile Map. Is It the Earliest Surviving Instance of Spherical Cartography? Did It Supply the 5000 Stades Arc for Erathostenes' Experiment?. Archive for History of Exact Sciences. 1983, 26 (3): 211–219 [2022-10-14]. S2CID 118004246. doi:10.1007/BF00348500. （原始内容存档于2022-10-14）.
- Behnaz Savizi, Applicable Problems in History of Mathematics: Practical Examples for the Classroom, Teaching Mathematics and Its Applications (Oxford University Press), 2007, 26 (1): 45–50, doi:10.1093/teamat/hrl009
harvard.edu
adsabs.harvard.edu
- Cleomedes (in Fragment 202 （页面存档备份，存于互联网档案馆）) stated that if the distance is measured by some other number the result will be different, and using 3,750 instead of 5,000 produces this estimation: 3,750 x 48 = 180,000; see Fischer I., (1975), Another Look at Eratosthenes' and Posidonius' Determinations of the Earth's Circumference, Ql. J. of the Royal Astron. Soc., Vol. 16, p.152.
jstor.org
- Donald Engels (1985). The Length of Eratosthenes' Stade （页面存档备份，存于互联网档案馆）. American Journal of Philology 106 (3): 298–311. doi:10.2307/295030 .
marineinsight.com
- Marine Insight, Why Nautical Mile and Knot Are The Units Used at Sea? （页面存档备份，存于互联网档案馆）
online.no
home.online.no
- Humerfelt, Sigurd. How WGS 84 defines Earth. 26 October 2010 [29 April 2011]. （原始内容存档于24 April 2011）.
semanticscholar.org
api.semanticscholar.org
- Rawlins, Dennis. The Erathostenes-Strabo Nile Map. Is It the Earliest Surviving Instance of Spherical Cartography? Did It Supply the 5000 Stades Arc for Erathostenes' Experiment?. Archive for History of Exact Sciences. 1983, 26 (3): 211–219 [2022-10-14]. S2CID 118004246. doi:10.1007/BF00348500. （原始内容存档于2022-10-14）.
springer.com
link.springer.com
- Rawlins, Dennis. The Erathostenes-Strabo Nile Map. Is It the Earliest Surviving Instance of Spherical Cartography? Did It Supply the 5000 Stades Arc for Erathostenes' Experiment?. Archive for History of Exact Sciences. 1983, 26 (3): 211–219 [2022-10-14]. S2CID 118004246. doi:10.1007/BF00348500. （原始内容存档于2022-10-14）.
web.archive.org
- Humerfelt, Sigurd. How WGS 84 defines Earth. 26 October 2010 [29 April 2011]. （原始内容存档于24 April 2011）.
- Donald Engels (1985). The Length of Eratosthenes' Stade （页面存档备份，存于互联网档案馆）. American Journal of Philology 106 (3): 298–311. doi:10.2307/295030 .
- Rawlins, Dennis. The Erathostenes-Strabo Nile Map. Is It the Earliest Surviving Instance of Spherical Cartography? Did It Supply the 5000 Stades Arc for Erathostenes' Experiment?. Archive for History of Exact Sciences. 1983, 26 (3): 211–219 [2022-10-14]. S2CID 118004246. doi:10.1007/BF00348500. （原始内容存档于2022-10-14）.
- Posidonius, fragment 202 （页面存档备份，存于互联网档案馆）
- Cleomedes (in Fragment 202 （页面存档备份，存于互联网档案馆）) stated that if the distance is measured by some other number the result will be different, and using 3,750 instead of 5,000 produces this estimation: 3,750 x 48 = 180,000; see Fischer I., (1975), Another Look at Eratosthenes' and Posidonius' Determinations of the Earth's Circumference, Ql. J. of the Royal Astron. Soc., Vol. 16, p.152.
- Marine Insight, Why Nautical Mile and Knot Are The Units Used at Sea? （页面存档备份，存于互联网档案馆）