Gan De

Gan De

Gan De (°, as a tropical year has 365Fraction|1|4 days. At the time, most ancient astronomers adopted the Babylon division where the celestial sphere is divided by 360°.

Books

As the earliest attempt to document the sky during the Warring States Period, Gan De's work possesses high scientific value. He wrote two books, the "Treatise on Jupiter" and the 8-volumes "Treatise on Astronomical Astrology" [also known as the Gan's Treatise on Stars.] , both of which have been lost. Gan De also wrote the "Astronomic star observation" (天文星占, Tianwen xingzhan). [Peng, Yoke Ho (2000). Li, Qi and Shu: An Introduction to Science and Civilization in China. Courier Dover Publications. ISBN 0486414450]

It can be seen on the quotations under Shiji (volume 27) and Hanshu (volume 26), but was preserved mostly in the Treatise on Astrology of the Kaiyuan Era. [Another 2 volumes preserved texts were attributed to him and Shi Shen and were incorporated to the Daoist Canon during the Song Dynasty, more commonly known as the Treatise on Stars of Gan and Shi. However, the book is generally not considered to be the more reliable than the Treatise on Astrology of the Kaiyuan Era, due to the anachronistic of name of places, etc. in the texts.]

In 1973, a similar catalogue by him and Shi Shen was uncovered in Mawangdui and was arranged under the name of Divination of Five Planets, it records the motion of Jupiter, Saturn, Venus and other planets in their orbits between 246 BC and 177 BC.

ee also

* Chinese star maps
* Hipparchus
* Nicolaus Copernicus
* Galileo Galilei

Notes

References

*cite book | author=Du Shiran et al | title=Biographies of Ancient Chinese Scientists Series One: [http://www.xys.org/xys/ebooks/others/science/history/china/gande.txt Gan De] | publisher=Kexue Chubanshe | location=Beijing | pages=25-27 | year=1992 | id=ISBN 7-03-002926-7
*cite book | author=Ma Linghong| title=Discoveries and Studies on the Bamboo and Silk Texts| publisher=Shanghai Shudian Chubanshe | location=Shanghai | pages=56-58 | year=2002 | id=ISBN 7-80622-944-2
*cite book | author=Gu Jianqing et al | title=Great Lexicon on Chinese Arts of Necromancy | publisher=Zhongshan University Press | location=Guangzhou | pages=648 | year=1991 | id=ISBN 7-306-00313-5
*X. Zezong, The Discovery of Jupiter's Satellite Made by Gan De 2000 years Before Galileo, "Chinese Physics" 2 (3) (1982): 664-667.
*"Sky and Telescope", February , 1981.


Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Gan — may refer to: * A Romanization of the Chinese character 甘 (Gān), an abbreviation for Gansu Province in the People s Republic of China * A Romanization of the Chinese character 赣 (Gàn), an abbreviation for: ** Gan River ** Jiangxi Province in the… …   Wikipedia

  • GAN — steht für: Gan Island, eine Insel der Malediven Gan (Sprache) (chin. 贛語 / 赣语), ein Dialekt der chinesischen Sprachen Gan (Ganzhou) (chin. 贛縣 / 赣县), der Kreis der Stadt Ganzhou in der Provinz Jiangxi, Volksrepublik China Gan (Fluss) (auch: Gan… …   Deutsch Wikipedia

  • Gan — steht für: Gan (Pyrénées Atlantiques), Ort in Frankreich Gan Island, südlichste Insel der Malediven im Addu Atoll; internationaler Flughafen Gan (Haddhunmathi Atoll), bewohnte Insel im Haddhunmathi Atoll der Malediven Gan (Huvadhu Atoll), Insel… …   Deutsch Wikipedia

  • Gàn — Gan Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Gan peut faire référence à : Toponymes Gan, une commune française des Pyrénées Atlantiques, Gan, une ville des Maldives ; Gan, une ville du… …   Wikipédia en Français

  • Gáň — (Village) Administration Pays …   Wikipédia en Français

  • Gan — Gan, imp. of {Gin}. [See {Gin}, v.] Began; commenced. [1913 Webster] Note: Gan was formerly used with the infinitive to form compound imperfects, as did is now employed. Gan regularly denotes the singular; the plural is usually denoted by gunne… …   The Collaborative International Dictionary of English

  • GAN — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. GAN, sigle composé des trois lettres G, A et N, peut faire référence à : Groupe des assurances nationales, une compagnie d assurances française, un… …   Wikipédia en Français

  • Gan Or — (Hebrew: גן אור, lit. Garden of Light ) was an Israeli settlement located in the Gush Katif settlement bloc and evacuated in Israel s disengagement of 2005. On the day of its evacuation 52 families, over 320 people, lived there. Gan Or was… …   Wikipedia

  • gan — ● gan nom masculin Dialecte chinois parlé au Jiangxi et au sud est du Hubei. Adangmé ou Gan groupe ethnique du Ghana occupant Accra et sa rég. (env. 3 millions de personnes). Ils parlent une langue nigéro congolaise du groupe kwa. Gan V. Adangmé …   Encyclopédie Universelle

  • 'gan — or gan «gan», verb. Archaic. past tense of gin4 …   Useful english dictionary

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”