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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accommodating financial transaction
accuracy of measurements
act it out
after-the-bell
agent coupon
amplitude vs. frequency distortion
analogtodigital converter
artron
baby-grand
back and leg dynamometer
back bevel
Ben Wheeler
besmut
betere
bevered
blood cell,blood corpuscle
body building
bolshoye alekseyevskoye
carrier pipe
Chushan-rishathaim
coloring material
combination construction
compression type regularity tester
constant phase shifting network
correlated equilibrium
cribraria minutissima
cry up
defunds
dental plastic filling instrument
destination control table
dopily
double-
Ephdra sinica Stapf
excretorily
flash in the pan
Fong-Newton theory
geezahs
genus Himantopus
geophases
glidesail parachute
Graham biscuit
Great Britain
HMERGE (high order merge)
hummer tone
hydraulic hammer action
idiotfests
internal cooler
internal friction
leukocyte migration
magnetizing current and reactance
market squares
marl slate
meromorphic function
metacarpo-
methano
microaccelerometer
midwave-infrared lasers
modular redundancy
nitrapyrin
non-porous wood
NSC-163501
oldbie
optical conductor
peniels
pertillant
pes valgus
Pharmazie
phenomenalized
pollution control measure
projection of relation
quantitative directive
quarter-wave voltage
race record
radar site
radici-
remedial measure
rhabdoweisia crispata
RuO2
sawwort
shaft furnace making sponge iron
simplex signalling system
sinking
small abalone
smoke shaft
spannered
spray application
strip photography
subarid open woodlands
sulfanilylthiourea
Swargadwari
tax-the-rich
television monitors
text-writer
third-string
time-varying channel with delay spread
unamicable
unhealed
unicoil winding
urban green coverage rate
whoop-de-dos
z-best
zoila