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
a good bet
a.f.d.
Acetalgin
adverse judgement
Agadir Melloul
articulation of elbow
assembly pulley
associated space
Bachelor of Laws
be bad company
become extinct
blaest
body effect diode amplifier
Bourgignot
broner
carbide tipped reamer
carpogenic
cash account method of cash budget
cause elimination
centre-of-pressure travel
cerulescent
climbing irons
corkier
cross-track
cutleaf coneflower
dischevel
discovers
double beam densitometer
external trigger input
field beans
floccillation
Form-figure
glomus nigrum
gone to waste
haploid(haplotype)
hawke bay
heat and vent system
hemogallol
homeness
homocerebrin
homoresistant
hotel appointments
in-house
information transfer experiments
intermatic
international council of ballroom dancing (icbd)
inverted receiver
jus fruendi aut frucus
kirk session
legal force
local population sample
low water period
macaroni-and-cheese
marine vertical seismic profiling
master's mate
minimax sequential decision function
modified jelly-roll process
mount a ladder
multitemporal image
neuroelectric
non-viability
nonconifer
nondecreasings
npm
nuclear strategy
operating system component
orthophyric texture
output end mirror
paradoxists
precausation
primary database
prostrators
punched card processing equipment
punish the bottle
qutayba
renewable energy resources
reoffending
Right up your street
Roca Partida, Pta.
sanaa (sana)
slope ramp
solubilizes
Streptococcus saprophyticus
subspiracular lobe
summitt
ta-da
taiya
teeth zone
telemetered medium environment buoy
the better part of
the hokey-pokey
time of useful consciousness (tuc)
time-pressed
uniaos
unsyringed
upskier
wachtmeisters
waste liquid
wet lay-up technique
width of transition steepness
wild pumpkin
winnfield