1 / 2

描述

BABINET Jacques (1794 - 1872) BABINET Jacques (1794 - 1872) SCIENCE - BABINET Jacques (1794 - 1872) - Autograph letter signed Autograph letter signed, dated “Lundi 1er Février 1847” by the French physicist, mathematician, and astronomer who is best known for his contributions to optics. Among Babinet's accomplishments are the 1827 standardization of the Ångström unit for measuring light using the red Cadmium line's wavelength, and the principle (Babinet's principle) that similar diffraction patterns are produced by two complementary screens. He was the first to suggest using wavelengths of light to standardize measurements. His idea was first used between 1960 and 1983, when a meter was defined as a wavelength of light from krypton gas. Addressed to Pierre Rayer (1793 - 1867), Dean of the Faculty of Medicine: “…je regrette beaucoup qu’un mal de gorge obstiné dont il faut enfin que je me débarasse et que la longue et triste cérémonie d’hier a encore aggravé me prive du plaisir que j’attendais pour aujourd’hui de faire plus intime connaissance avec vous…”. 1 p. In-8. - This item is under temporary import. If the item is delivered within the United Kingdom, it will be subject to a 5% Value Added Tax (VAT) on the hammer price.

前往拍品
<
>

BABINET Jacques (1794 - 1872) BABINET Jacques (1794 - 1872) SCIENCE - BABINET Jacques (1794 - 1872) - Autograph letter signed Autograph letter signed, dated “Lundi 1er Février 1847” by the French physicist, mathematician, and astronomer who is best known for his contributions to optics. Among Babinet's accomplishments are the 1827 standardization of the Ångström unit for measuring light using the red Cadmium line's wavelength, and the principle (Babinet's principle) that similar diffraction patterns are produced by two complementary screens. He was the first to suggest using wavelengths of light to standardize measurements. His idea was first used between 1960 and 1983, when a meter was defined as a wavelength of light from krypton gas. Addressed to Pierre Rayer (1793 - 1867), Dean of the Faculty of Medicine: “…je regrette beaucoup qu’un mal de gorge obstiné dont il faut enfin que je me débarasse et que la longue et triste cérémonie d’hier a encore aggravé me prive du plaisir que j’attendais pour aujourd’hui de faire plus intime connaissance avec vous…”. 1 p. In-8. - This item is under temporary import. If the item is delivered within the United Kingdom, it will be subject to a 5% Value Added Tax (VAT) on the hammer price.

估价 220 - 260 GBP
起始价格 150 GBP

* 不计佣金。
请参考拍卖条款计算佣金。

拍卖费用: 31 %
出价
注册

拍卖: 7月 29日 星期一 : 14:00 (BST)
mayfair-london, 英国
L'Autographe Auctions
+4420.353.503.63
浏览图录 拍卖条款 拍卖信息

配送至
更改地址
下面的运送方案非强制性选择。
您可自行联系货运公司负责拍品运送。
运送估算文件中标明的价格不包括拍品的价格和拍卖行的费用。