首页
登录
职称英语
Which fonms was the basis for photography? [br] [originaltext] The camera is
Which fonms was the basis for photography? [br] [originaltext] The camera is
游客
2023-11-16
78
管理
问题
Which fonms was the basis for photography? [br]
The camera is often thought to be a modern invention. But as early as 1727, a German physicist discovered that light darkened silver salt , a chemical compound. Using as a camera, a big box with a small hole to let the light in, he made temporary images on the salt. Silver salt is still the base of film today. Then a French scientist made the first permanent picture by using a special piece of metal sensitized with silver salt. A photography he made in 1826 still exists. The painter Dagear improved on the process by placing common salt, the kind we eat, on the metal. This was in 1839, the official date of the beginning of photography". But the problem was the printing of the photographs. And it wasn’t until other scientists developed the kind of paper we now use that good printing was possible and photography became truly modern. In 1860’s Matthew Brady was able to take his famous pictures of the American Civil War, thus making portrait poses very popular. In the 20th century, George Eastmen of the United States simplified film developing, and Edwards Land invented the so-called instant camera with self-developing film. If we say that the photography came into existence in 1839, it follows that it has taken more than one hundred years for the cameras to reach its present condition of technical refinement.
选项
A、A new kind of film.
B、An automatic printer.
C、A cheap device of developing film at home.
D、An "instant" camera that develops its own film.
答案
D
解析
细节题。Edwards Land发明了自显影胶片。此句的考点位于并列句连词and之后。
转载请注明原文地址:https://tihaiku.com/zcyy/3191911.html
相关试题推荐
Accordingtothenews,thevictimwas______.[originaltext]FourAmericante
WhatisNOTmissinginMary’sbriefcase?[br][originaltext]W:Sorry,I’mlate,
Whereisthepresenceofsecuritypatrolsmostevident?[br][originaltext]
TheRussiancargoshipwassinking.Whatwasthedirectcause?[originaltext]
Wherewerethetwomenfilmed?[br][originaltext]Thepolicereleasedthef
Wherewerethetwomenfilmed?[br][originaltext]Thepolicereleasedthef
WhatisJiminterestedin?[br][originaltext](M=Jim,F=Linda)M:Hello,Li
WhatisJiminterestedin?[br][originaltext](M=Jim,F=Linda)M:Hello,Li
JohnhasworkedinallofthefollowingplacesEXCEPT______.[br][originaltext
JohnhasworkedinallofthefollowingplacesEXCEPT______.[originaltext](M=
随机试题
A.紧跟其后行驶 B.低速慢行 C.连续鸣喇叭示意 D.保持必要的安全距离
正常甲状腺横切时的超声特征是A.甲状腺包膜完整,呈蝶形,强回声 B.甲状腺为蝶
A.苯巴比妥 B.新斯的明 C.阿托品 D.氟马西尼 E.纳洛酮拮抗芬太
下列哪项不是诊断充血性心力衰竭的主要依据:()A.安静时心率增快,婴
常用的中医养生的方法包括以下()A.辨证论治 B.药养 C.针灸
下列肺癌CT征象的病理基础分别是 A.肿瘤内残存正常含气肺组织 B.瘤内含气
顾某,35岁,无固定职业,因盗窃被判有期徒刑1年,缓期执行。判决后,其妻离家出走
下列关于个人汽车贷款审批的说法,错误的是( )。A.贷款审批人应分析该笔业务预
企业经营活动缴纳的下列税款,计入“税金及附加”的有()。A.消费税 B.增值
根据《建筑工程建筑面积计算规范》(GB/T50353),下列关于建筑物雨篷结构
最新回复
(
0
)