首页
登录
职称英语
Why were early radio broadcasts heard by such a small audience? [originaltext]
Why were early radio broadcasts heard by such a small audience? [originaltext]
游客
2023-11-20
55
管理
问题
Why were early radio broadcasts heard by such a small audience?
It was an Italian inventor who created the first wireless device for setting out radio signals in 1895. But not until the American inventor Lee De Forest built the first amplifying vacuum tube in 1906 did we get the first radio as we know it. And the first actual radio broadcast was made on Christmas Eve of 1906. That’s when someone working from an experimental station in Brand Rock, Massachusetts, arranged the program with two short musical selections of poem and brief holiday greeting. The broadcast was heard by wireless operators on ships with a radio through several hundreds miles. The following year, De Forest began regular radio broadcasts in New York. These programs Were similar to much what we hear on radio today. In that, De Forest played only music. But because there were still no home radio receivers, De Forest’s audiences consisted only of wireless operators on ships in New York Harbor. There is no doubt that radio broadcasting was quite a novelty in those days, but it took a while to catch on commercially. Why? Hmm, for the simple fact that only a few people, in fact, only those who tinkered with wireless telegraphs as a hobby owned receivers. It wasn’t until the 1920s that someone envisioned mass appeal for radio. This was radio pioneer David Sarnoff who predicted that one day there would be a radio receiver in every home.
选项
A、Few people owned the necessary equipment.
B、The music selection was not very popular.
C、Few ships came into New York harbor.
D、The radio signal was too weak to reach a mass audience.
答案
A
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3204018.html
相关试题推荐
Howmanyattacksandclasheswerereportedinthisnews?[br][originaltext]
Howmanyattacksandclasheswerereportedinthisnews?[br][originaltext]
Howmanyattacksandclasheswerereportedinthisnews?[originaltext]Atta
Wheredoesthisconversationmostlikelytakeplace?[br][originaltext]M:Hell
Wheredoesthisconversationmostlikelytakeplace?[originaltext]M:Hello.May
Whatisthemaintopicofthisconversation?[br][originaltext]M:Weseemtob
______werereportedbytheweatherstationinChicago.[br][originaltext]
______werereportedbytheweatherstationinChicago.[br][originaltext]
______werereportedbytheweatherstationinChicago.[originaltext]Onthe
Howmanycarsaretowedfromthestreetseachyear?[originaltext]Oneofth
随机试题
Oneofthebasiccharacteristicsofcapitalismistheprivateownershipoft
Directions:Readthepassage.Thenanswerthequestions.Giveyourself20minute
Yamagata-bornKenOkuyama,wellknowninautomobiledesigncircles,wasbrou
对于自然通风设施,防烟楼梯间前室、消防电梯前室可开启外窗或开口的有效面积不应小于
我国现行的《公共场所卫生管理条例》规定下列哪个部门负责辖区范围内的公共场所卫生监
有关志贺菌属的细菌,叙述不正确的是A.无荚膜B.无鞭毛C.无菌毛D.无芽孢E.可
共有物的管理费用不包括()。A:保存费用 B:改良费用 C:缴纳税款 D:
8,6,4,,,( )
影响货币供应量的因素主要有()。A、商业银行的信贷收支 B、黄金外汇储备
加固土桩的成桩试验应取得满足设计喷入量的各种技术参数包括()A.钻进速度
最新回复
(
0
)