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
28
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:https://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
[originaltext]Fifteenyearsago,Japaneseengineersastonishedtheworldwi
[originaltext]Germany’sRhineRiverishundredsofmileslong,butnotall
清算人由全体合伙人担任,经全体合伙人过()同意,可以自合伙企业解散事由出现
与正常的金融资产相比,金融类不良资产具有高收益和高流动性以及处于贬值、过度积聚的
房地产经纪业是( )的行业。A:知识密集和资金密集 B:资金密集和劳动密集
判断肠瘘的位置可依据A.腹膜刺激征强弱 B.瘘口排出物的性状 C.有无继发感
从2002年11月起,国外某研究小组从199名女性体内提取2221颗卵子,并对其
物流经济活动空间经济活动最密集、最活跃的地方是( )。 A.节点
关于权责发生制这一会计记账基础的说法,正确的是()。A.企业会计应当以权责发生制
乙方当事人的违约行为导致工程受到损失,甲方没有采取任何措施减损,导致损失扩大到5
最新回复
(
0
)