时间:2018-12-24 作者:英语课 分类:Scientific American(三)月


SSS 2010-03-24 - 英语课
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  1. 1 SSS 2010-03-24 英语课
英语课

Here are two seemingly unrelated facts. One: from the late 1940s through 1963, we tested atomic bombs in the atmosphere. Two: wine lovers are sometimes duped into spending exorbitant 1 amounts for fake vintage bottles that weren’t from the year they were supposedly grown.


But Graham Jones at Australia’s University of Adelaide thought he could use bomb information against counterfeit 2 wines. Carbon dating works by comparing the amount of carbon 14, which is a less common and less stable form of carbon, to the more abundant carbon 12.


For thousands of years, the ratio between the two has been the same. But those two decades of atomic bomb tests increased the C-14 in the atmosphere. And as growing grapes absorb carbon dioxide, they take in trace amounts of the heavier carbon isotope—which eventually show up in the wine.


The research team checked C-14 levels in 20 Australian red wines with vintages from 1958 to 1997. They compared the wine’s C-14 to C-14 in atmospheric 3 samples from the same years. And found a direct match—C-14 levels could give away the vintage year for each wine. So beware wine scammers. Because even at the atomic level, in vino veritas.


 



1 exorbitant
adj.过分的;过度的
  • More competition should help to drive down exorbitant phone charges.更多的竞争有助于降低目前畸高的电话收费。
  • The price of food here is exorbitant. 这儿的食物价格太高。
2 counterfeit
vt.伪造,仿造;adj.伪造的,假冒的
  • It is a crime to counterfeit money.伪造货币是犯罪行为。
  • The painting looked old but was a recent counterfeit.这幅画看上去年代久远,实际是最近的一幅赝品。
3 atmospheric
adj.大气的,空气的;大气层的;大气所引起的
  • Sea surface temperatures and atmospheric circulation are strongly coupled.海洋表面温度与大气环流是密切相关的。
  • Clouds return radiant energy to the surface primarily via the atmospheric window.云主要通过大气窗区向地表辐射能量。
标签: SSS exorbitant
学英语单词
1-Phosphofructokinase
accupro
acrasy
Adnic
air hose coupler
airborne gun sight
Alcottian
aminolink
arbex
atrioventricular aperture
axinota hyalipennis
ball-bearing fit
be designed to do sth
bonewhite
bredthe
breunig
Candarave
Citroflex-2
Clearwater Ranch
cloistre
coupling probe
crocethias
damper tube
demonstrating
discriminative exchange rate
Dodonovo
domestic vein
door-panels
down the tubes
dual register burner with primary air exchange
dualization
ducking machine
Endolin
entity life cycle model
entocele
equationally
exhaust gas intake port
facial color
far post
follicular hydrops
forest tent caterpillars
gas aspirator
gas blow out
gpr
graphite lubricator
grounded grid amplifier
helleborein
high quenching
hountee
hypovirulent
imidie acid
insert equipment
instant roadway
kapell
kerabitumen
loc. cit.
louvre blade
magnetothermography
multi-fuse igniter
natural expense account
net claims paid
nuclear deterrences
oven-bakeds
ozones
pentangle
periodicity condition
pluralisations
pointing swager
preserving kettle
print resolution
railway aerial surveying
rated static transerse force
raw material purchase contract
royalizing
rub something down
rubber belting
Santana do Cariri
scottish highlanders
scymnus (neopullus) hoffmanni
siting survey
spin orbit interaction
stability of gyroscopic system
Stefanie, L.(Ch'ew Bahir)
stretch forth one's hands against
thymus independent region
tohu-bohu
total cataract
tricot warper
trunk
tsurumi
ultimate error of sampling
undergraduate subject
unequivocally
Unilateral Declaration of Independence
unsupple
vacuol(iz)ation
variable-length addressing
vermiculate
weight specific heat
wetye
xanthaurine
yaw adder