釜石市唐丹町にある伊能測量顕彰碑中の「地球微動」について　　建立者葛西昌丞が文化１１年（１８１４年）に抱いていた概念

DOI Web Site 被引用文献2件 参考文献24件

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タイトル別名
  • On the Gradual Motion of the Earth Described in the Monuments in Commemoration of the Land Survey by Inoh Tadataka at Tohni-cho, Kamaishi
  • カマイシシ トウニチョウ ニ アル イノウ ソクリョウ ケンショウヒ チュウ ノ チキュウ ビドウ ニ ツイテ コンリュウシャ カサイ マサヒロ ガ ブンカ 11ネン 1814ネン ニ ダイタ ガイネン
  • 建立者葛西昌丕が文化11年 (1814年) に抱いていた概念

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抄録

There exist two monuments at Tohni-cho in Kamaishi-city (Iwate pref.) built by Kasai-Masahiro in 1814, in commemoration of the land survey carried out by Inoh Tadataka in 1801. Kasai had described the latitude measurement by Inoh as 39°12′N. The most important part of the inscription based upon this value is his requirement to the future generations to confirm a prediction on gradual motion of the Earth due to the European theory. As the result of the examination on the description in connection to the level of Japanese astronomy before around 1800 era, the author concluded that two astronomical concepts, the polar motion and the nutation, should be considered as candidates of gradual motion of the Earth. The author is also concerned with the subject what kind of channels were available in distributing the newest scientific information to northern Japan, and how.

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