…In 1830, mineralogist JFC Hessel succeeded in deriving 32 crystallographic point groups, but this important discovery remained unknown to the world for 60 years. Meanwhile, the concept of a crystal lattice was proposed by physicist LA Seeber in 1824. Near the middle of the 19th century, British mineralogist WH Miller established a crystal system based on symmetry considerations and a notation system for face indices (1839), and Frenchman A. Bravais completed the classification of space lattices by symmetry (1850). … *Some of the terminology referenced in "Seeber, LA" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…1830年に鉱物学者ヘッセルJ.F.C.Hesselが32種の結晶学的点群の導出に成功したが,この重要な発見はその後60年もの長い間世に知られないままであった。一方,結晶格子の概念は1824年に物理学者ゼーバーL.A.Seeberによって提唱された。 19世紀半ば近くになって,イギリスの鉱物学者ミラーW.H.Millerは対称の検討に基づいた結晶系と面指数の記号法とを確立し(1839),またフランスのA.ブラベは対称による空間格子の分類を完成した(1850)。… ※「Seeber,L.A.」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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