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
74
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、1727.
B、1826.
C、1839
D、1860
答案
C
解析
细节题。公认的照片诞生之日是1839年。凡是听力材料中出现日期都需特别留意。
转载请注明原文地址:https://tihaiku.com/zcyy/3191910.html
相关试题推荐
Accordingtothenews,thevictimwas______.[originaltext]FourAmericante
Theservicesofthenewpartnershipareprovidedmainlyto______.[originaltext
Whereisthepresenceofsecuritypatrolsmostevident?[br][originaltext]
Whereisthepresenceofsecuritypatrolsmostevident?[originaltext]AnOly
WhydidthesingersmeetinHollywood?[originaltext]Dozensofrecordingsta
Wherewerethetwomenfilmed?[br][originaltext]Thepolicereleasedthef
Wherewerethetwomenfilmed?[br][originaltext]Thepolicereleasedthef
WhatisJiminterestedin?[br][originaltext](M=Jim,F=Linda)M:Hello,Li
JohnhasworkedinallofthefollowingplacesEXCEPT______.[br][originaltext
JohnhasworkedinallofthefollowingplacesEXCEPT______.[originaltext](M=
随机试题
[originaltext]W:Ijustmadeupaquartoforangejuicethismorning,andnowI
HandGesturesinDifferentCultures1.ThumbsupAmericaandEurope:a【T
设置()的部位应设有排水设施,排水能力应满足报警阀调试、验收和利用试水阀门泄空系
关于项目招投标的说法,不正确的是()。A.中标人确定后,招标人应当视情况向中标
小王为本公司草拟了一份计算机设备采购合同,其中写到“乙方需按通常的行业标准提供技
以下哪一种矫治力强度为重度力A.大于60g B.大于350g C.大于500
天王补心丹中"三参"是指A.人参、丹参、沙参 B.人参、玄参、海参 C.人参
企业选聘培训教师的基本标准有哪些?
某施工单位承建某城市一新建快速路5标段工程,其中K3+220~K3+650为填方
患儿10岁,胫骨中上段慢性骨髓炎,一般情况好,体温不高,局部有流脓窦道,X线片有
最新回复
(
0
)