时间:2019-01-08 作者:英语课 分类:Scientific American(一)月


英语课

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute.


Oh what a tangled 1 web we weave. Or so it may seem, because many social networks eventually evolve into one of just two states. We either all get along, or an unbridgeable divide develops. And a new mathematical model can predict which it will be, findings laid out in the Proceedings 2 of the National Academy of Sciences.


Consider a relationship triangle. Arthur and Carl don't like each other. But Bill is friendly with them both. Bill will probably try to convince Arthur and Carl to get along. But Arthur and Carl are telling Bill that the other guy's no good. You don’t need to be a math whiz to see that, as time goes on, either everyone will be friends or Bill is gonna have to pick a side.


Now picture a big network made of these triangles, which is what scientists did in their computer model. And they found that this theoretical social network produced either global harmony or all-out war, depending on the initial triangles. The model even predicted almost exactly the identities of all the Allied 3 and Axis 4 forces during World War II. So one way to prevent global war may be to forge friendships between enough Arthurs and Carls.


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



n.进程,过程,议程;诉讼(程序);公报
  • He was released on bail pending committal proceedings. 他交保获释正在候审。
  • to initiate legal proceedings against sb 对某人提起诉讼
adj.协约国的;同盟国的
  • Britain was allied with the United States many times in history.历史上英国曾多次与美国结盟。
  • Allied forces sustained heavy losses in the first few weeks of the campaign.同盟国在最初几周内遭受了巨大的损失。
n.轴,轴线,中心线;坐标轴,基准线
  • The earth's axis is the line between the North and South Poles.地轴是南北极之间的线。
  • The axis of a circle is its diameter.圆的轴线是其直径。
标签: 托福素材 sss
学英语单词
abstrusities
Agassiz Fracture Zone
algogenesis
anomphalous
apagado
Armstrong system
arthropathology
battery girl
bronxdale
cabover type
center wall updraft heater
cliftonia monophyllas
coke pushing ram
cokow
collop
consumer credit control
corrosion preparation
counted pulses
counter-pressure
currency stable unit
datewritten
density reference scale
descriptive cataloging
discharging test
effective speed
endocardiosis
english departments
estimated assessment
fifth-generations
first-pitch
five-needled
Food Indigo
freight platform
gains point
galvanized iron wire cloth
grain refiners
had my back
HAKUTOBO
hanaper
hari mizu nukuicha (okinawa)
head to head
hemolymphadenosis
heterotopic parasitism
honest to gods
Idalium
induced-draft control
industrial economic codes
infant industry argument
inspection for engineering
intermediate-frequency interfer-ence ratoi
interpreting tracing
inverted caret
Islington
jazzbands
Keypro
kickbanned
leaded semi-red brass
ledra auditura
less important work
limbach
Linder's initial bodies
lithium-chloride humidity sensor
mains immunity
materialized view
mesh bipolartransistor
minimaltype
mining environment
MTD (maximum tolerated dose)
nerve Bell's
Nihon
non-periodic function
not-sufficient-funds check
notice of decision
numeric-field data
oceanographic observations
osteotabe
percy aldridge graingers
planar transistor
Planum supracristale
PR (program register)
printscript
pruinous
railway distribution system
rainer
relations of use value and exchange value
Ruminantia
slow and sunken pulse
snitching
snow in
specialist-level
spruce squirrel
stand by letter of credit
strain shadow
subluxed
tapotage
thallium(i) chromate
Thatter
uff-da
whip test
writing-masters
zois