时间:2019-01-20 作者:英语课 分类:2015年Scientific American(四)月


英语课

 Early warning systems can be the difference between life and death in earthquake-prone regions. But they are expensive. The US, Mexico and Japan have such systems. That leaves large swats of central and South America, Asia and the Caribbean unprotected. Now scientists think one solution could be hiding in our pockets, our cell phones. Smart phones employ the latest GPS technology. So scientists tested arrays of smart phones to determine if they could measure the displacement 1 caused by the earth shaking and signal the subtle beginnings of an earthquake. For the experiment, the researchers used a hypothetical Magnitude 7 earthquake in California and data from the real Magnitude 9 earthquake off the coast of Japan in 2011 that led to the tsunami 2 that caused the nuclear accident at Fukushima. They found that as few as 500 cell phones in California could alert the public 5 seconds before an event, enough time to at least move to a less vulnerable part of a room or dive under a desk. For the Japanese earthquake, early warning would not have helped in the region closest to the epicenter, but such an alert could have helped cut damage in downtown Tokyo, and the information would have reached the coastline life-saving minutes before the resulting tsunami waves did. The researchers in the Journal Science advance this. The scientists say various technological 3 details need to be worked out, such as how companies would allow smart phones to access and share the raw data. They point out that instead of waiting to buy expensive top-grade scientific equipment, governments could consider creating interim 4 early detection systems based on arrays of sensitive smart phones.



n.移置,取代,位移,排水量
  • They said that time is the feeling of spatial displacement.他们说时间是空间位移的感觉。
  • The displacement of all my energy into caring for the baby.我所有精力都放在了照顾宝宝上。
n.海啸
  • Powerful quake sparks tsunami warning in Japan.大地震触发了日本的海啸预警。
  • Coastlines all around the Indian Ocean inundated by a huge tsunami.大海啸把印度洋沿岸地区都淹没了。
adj.技术的;工艺的
  • A successful company must keep up with the pace of technological change.一家成功的公司必须得跟上技术变革的步伐。
  • Today,the pace of life is increasing with technological advancements.当今, 随着科技进步,生活节奏不断增快。
adj.暂时的,临时的;n.间歇,过渡期间
  • The government is taking interim measures to help those in immediate need.政府正在采取临时措施帮助那些有立即需要的人。
  • It may turn out to be an interim technology.这可能只是个过渡技术。
学英语单词
administrative readjustment
alaudidaes
arshile gorky
Balagne
Biver
Bulzi
buzzes in
cardmember
castlemaine
certified instrument
colletotrichum rhoinum tassi
complection
concentrate feed
configuration data control
constrained kinematic chain
consummateth
continuous casting
curly-haired
cutaway dive
depth-chargeds
Dictyoclostus
Domodossola
doxing
El Higuerón
electrically-operated platform truck
erosion mountains
erythroblastotic
erythropoeisis
feeler spring pin
Finucane Ra.
fix point
garment leather
generator unit stator
gourlie
greywacke schist
H.D.L.W.
hartnell
herdmate comparison
high volume sampler
hollow packing
hoogenband
humetted
incisiver suture
inviters
language data
line frequency generator
link-local address
long-term government bonds
Länsi-Suomen Lääni
marine atmosphere corrosion-resisting structural steel
maritime buoyage system agreement
methylone
middleburgh
mindelo
Mošnov
nanningensis
non-pensionable supplements
nondeterministic finite automation
Orthosiphon spicatus
overrunner
Parophidion
perfumes
pilosis
plaster jeckets
Podkarpackie
posthabit
power-downs
presidentiables
proportional intensifier
pyridizin
pyrometric cone equivalent value
rail cambering machine
regular surface gauge
Roundwood Res.
scarlatina latens
shanghaiing
skin irritation assay
spaghetti strap
St. Gervasius' disease
stantly
steam turbine rotor
strong gluten
subfamily Triglinae
Sud, Pte.
thalamic medullary stria
the shakes
thermometer dial
thoracispinal
three-dimensional model
timeframes
tractor mounted
transposition pin
Tyssedal
u-tube hydrometer
ulcerable
vault money
Wanner optical pyrometer
water-carrying
wavelength spectrometer
whelping
yekke
yellow globe lily