时间:2019-01-08 作者:英语课 分类:Scientific American(六)月


英语课

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute?


When the internet first got kicking, some scholars of democracy and civil society thought that online discussions could create what they called a "conversational 1 democracy": an ongoing 2 town hall without bricks and mortar 3. But the internet may not be as democratic as they'd imagined, according to a study in the journal Communication Research.


Researcher Itai Himelboim gathered eight million messages posted to 35 political and philosophical 4 newsgroups—like alt.politics.usa—over a six-year period. And he analyzed 5 the connections among the messages. Turns out that 50 percent of all replies were directed at just 2 percent of people who started threads, and who thus came to control the discussion. And the larger the newsgroup, the more polarized this effect became.


But these newsgroup dominators weren't posting much original content. Sixty percent of their posts were just content lifted from traditional news sources like the New York Times. Which is good news for the news business, the author says. Because it means people still want someone else to search out information and deliver it. After all, isn't that one reason why you listen to this podcast?


Thanks for the minute. For Scientific American's 60-Second Science, I'm Christopher Intagliata.



adj.对话的,会话的
  • The article is written in a conversational style.该文是以对话的形式写成的。
  • She values herself on her conversational powers.她常夸耀自己的能言善辩。
adj.进行中的,前进的
  • The problem is ongoing.这个问题尚未解决。
  • The issues raised in the report relate directly to Age Concern's ongoing work in this area.报告中提出的问题与“关心老人”组织在这方面正在做的工作有直接的关系。
n.灰浆,灰泥;迫击炮;v.把…用灰浆涂接合
  • The mason flushed the joint with mortar.泥工用灰浆把接缝处嵌平。
  • The sound of mortar fire seemed to be closing in.迫击炮的吼声似乎正在逼近。
adj.哲学家的,哲学上的,达观的
  • The teacher couldn't answer the philosophical problem.老师不能解答这个哲学问题。
  • She is very philosophical about her bad luck.她对自己的不幸看得很开。
v.分析( analyze的过去式和过去分词 );分解;解释;对…进行心理分析
  • The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
  • The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程,因为对他来说,爱是个不可分析的迷。 来自《简明英汉词典》
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学英语单词
acceptor atom
accumulated running time
adhesive tapes
All roads lead to Rome.
artesanato
asymptotic expansion formula
be bitten by
benthic biology
booby traps
braid over braid
breeding gain
buckling and crushing tests
castagna
clearway
committee on bnaking and currency
cylinder borer
digital piano
dihydrodeoxystreptomycin
direct trunk
dissuasively
dot count register
downslopes
ejection chute
electron microscope microanalyser
equilibrium moisture comtent
Feuchtwangen
first-pole-to-clear factor
flat bottomed
floating zone
flycutter
fork extension sleeve
formal unit
gage line of rivets
gangcar
gill-less
going-part
greensheet
hot bottle
Huachinera
ice cream scoop
implementation rule
inner ester
inspection error
intermediate gearbox
ipsilesionally
Jacques Anatole Francois Thibault
Japan poplar
lactivores
lead benzoate
logic state analyzer
Melchiades
mistruth
Mitropoulos, Dimitri
modulator band electrical system out
Montreal Exchange
multi-list
Nsang
occasionarily
on display
Oono
ordinary life insurance
penischisis
peripheral anosmia
phytophthora parasitica dast
Plantasan
precordial depression
presses down
promitosis
pulling my leg
pyrog
raconteur
Rampatti
rape it
ravenish
recording manometer
relay driver
remonstrance
riggling
s.c.r
satellite heat pipe
satellite towns
single-channel thermal infrared scanner
skamania
sovereignty of consumsers'
springing executory interest
statutory functions
steatopygia
suprasplenial fissure
tar heavy oil
temporale canal
thrill through
thylacosmilus
titanium diboride
total value of purchase
unexceptable
uptaker
uromyces truncicola p.henn.et shirai
war-effort
water pump propeller
Worthing
yin-syndrome appearing as yang-syndrome
zeta-type