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
2024-10-26
26
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/3818580.html
相关试题推荐
Theaimoftheagreementisto______.[br][originaltext]TheCanadianpoli
Theaimoftheagreementisto______.[br][originaltext]TheCanadianpoli
Howmanymegawattsofelectricitywereaddedin1997?[br][originaltext]Th
Howmanymegawattsofelectricitywereaddedin1997?[br][originaltext]Th
Howmanymegawattsofelectricitywereaddedin1997?[originaltext]Theworl
Whatisspecialabouttheman’sbirthday?[br][originaltext]Jill:Whatareyou
Whatisspecialabouttheman’sbirthday?[originaltext]Jill:Whatareyourown
[originaltext]TheCreditCardintheU.S.Tod
Towhomweretheletterbombsintendedtosend?[originaltext]Sevenmembers
whenwilltheexamtakeplace?[originaltext]NowI’dliketotalktoyouab
随机试题
WritingaLiteratureReviewI.DefinitionofLiteratureReview—It’sa(n)【T1】__
Scientistswhobelievecellphonesaredangeroushavebeenthrowingouthypo
[originaltext]W:IdrivenowbutIdidn’tuseto.M:Ihavedrivenfortwoyear
选题2-16
慢性失血一般可导致A.小细胞高色素性贫血B.正常细胞性贫血C.小细胞低色素性贫血
Thechangeinthatvillagewasmiraculou
流动性覆盖指标(LCR)旨在确保商业银行具有充足的合格优质流动性资产,能够在银行
班杜拉提出的社会学习理论最突出的特点是( )A.强调模仿 B.强调行动 C
长时间地集中学习同一学科或同一类学科,使大脑皮层的同一部位接受同一种刺激,会导致
A.髓海 B.血海 C.气海 D.水谷之海 E.十二经脉之海胃被称为
最新回复
(
0
)