...He also established a method of refining platinum to obtain malleable platinum, and created the very thin platinum wire (Wollaston wire) used in crosshairs in optical instruments. He also contributed to crystallography by creating a highly accurate reflective goniometer (angle measuring instrument), and improved and invented many other optical instruments, such as the polarizing prism (Wollaston prism) made of two calcite right-angle prisms glued together, and the Wollaston lens, which eliminates aberration by gluing two lenses together. His achievements are far-reaching, including the observation of the dark line in the solar spectrum and the discovery of cystine, a type of amino acid. [Kawai Yoko]... *Some of the terminology that refers to "Wollaston lens" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…また,可鍛性のある白金を得る精製法を確立し,光学機器の十字線などに用いられるごく細い白金線(ウォラストン線)を作った。精度の高い反射式ゴニオメーター(測角器)を作り結晶学に貢献,さらに,方解石の直角プリズムを2個はり合わせた偏光プリズム(ウォラストンプリズム)や,2枚のレンズをはり合わせて収差を除いたウォラストンレンズなど数多くの光学機器の改良や発明があり,このほかにも太陽スペクトルの黒線を観測したり,アミノ酸の一種であるシスチンを発見するなど,彼の業績は広範囲にわたっている。【川合 葉子】。… ※「ウォラストンレンズ」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 |
A penthouse is a rooftop floor. It can also mean a...
Food allowances provided to members of the imperia...
1877‐1935 Austrian musicologist. Raised in a music...
… [Image division method] Various methods have be...
…The first septic tanks were installed in Japan a...
...An era began in which painters were able to pr...
1882-1964 A publisher from the Taisho to Showa er...
A former town in Nishiibaraki County, central Ibar...
It is an interdisciplinary basic science that spa...
A seaweed of the family Rhodomelaceae in the order...
…A synthetic rubber obtained by cationic copolyme...
Founded by Sasaki Nobutsuna in February 1898 (Mei...
...The blade is usually triangular with a ridge o...
… [Kei Yamazaki]. … *Some of the terminology that...
...It was originally part of Hyuga Province, and ...