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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Aegypius monachus
aeolian sandy soil
amyloid tumor
aqueductus Sylyii
astartle
Barbados cherries
borels
bridge cap
broadband phone service
bucket wheel excavator
bungos
Cafatrexyl
cigarette
Cissus adnata
clensieve
commutation repetitive transient
corums
cranked platform trailer
croncled
culpable homicides
Cyanolite
cymatium thersites
Derudeb
diachylum
Dingtuna
divergence of vector field
dog shark
dry as a mummy
electric propeller shaft revolution indicator
electrolytic battery regulator
Euphorbia tibetica
federal courts
firm brokerage
Fluoroacetic
forming working straight of die
fraunhofers
front water box
goods forbidden to be exported
gottesman
GTBP
higher-order closure model
Hino-misaki
hydraulic starter
ice-box
incomputable
inner wrapper
integrated practical application
Jarrick
Jebu
keyword indexing
Laanemaa
laying hands on
maubies
mercenary marriage
minor road
netflix
onsen
out-wrench
overwinged
own up to a crime
Panu
personal code
plaffeite
pole face
poncirin
portegues
postcubital crossvein
pulsation parallax
pulsed xenon lamp
Rafizi
readership test
real audit
relative consistency curve
Saccharomycetales
sand flotation process
sannyasin
sectromete
seed-blanket
smurfed
split gland
splitting of heart sounds
stood fair with
subofficer
sulfureous spring
supra-alar bristle
suspensers
sweetening spider
syntactic class
system of complete residues
Taylors Mistake
tramp's spurge
trichocarpocus
trilepton
trolley-pivot
turnout replacement
uninfluenceable
unmarriable
uranocoloboma
vincentite
volume label
washing out clause
water path