Iodine

(noun.) a nonmetallic element belonging to the halogens; used especially in medicine and photography and in dyes; occurs naturally only in combination in small quantities (as in sea water or rocks).

录入:佩内洛普

• The daguerreotype was made on a thin sheet of copper, silver plated on one side, polished to a high degree of brilliancy, and made sensitive by exposing it to the fumes of iodine. 佚名. 神奇的知识之书.
• Daguerre was, to deposit a film of iodine on a highly polished silver plate, by exposing the plate to the vapour of iodine in a dark box. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• Niepce used iodine, and it has been supposed that the use of iodine for that purpose suggested the employment of it to his partner. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.

录入:凯思琳