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This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

发表于:2018-12-24 / 阅读(72) / 评论(0) 分类 Scientific American(三)月

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(71) / 评论(0) 分类 Scientific American(一)月

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

发表于:2019-01-03 / 阅读(62) / 评论(0) 分类 医务英语

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

发表于:2019-01-08 / 阅读(74) / 评论(0) 分类 Scientific American(四)月

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

发表于:2019-01-08 / 阅读(58) / 评论(0) 分类 Scientific American(十一)月

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(72) / 评论(0) 分类 万物简史
学英语单词
adnoun
adzima
algidness
alien to
Anopheles maculipalpis
association for specialists in group work(asgw)
be brought to light
bicomponent yarn
big-talking
biligenesis
bimaxillary protrusion
bioecologists
breezers
brittle body
bullet-sealing cell
call transaction
clearing heat in yingfen
columna posterior medullae spinalis
common requisites
communicating artery
condition of recognition
continuous stimulus indicator
coolant moderator
cost of flotation
customer's woman
dialling duration
dog roses
double integral sign
double sampling inspection plan
drawing scale
duplex taper
epiblepharon
equal quantity monthly
Ervatamia flabelliformis
eutelsats
facies inferior pyramidis
finite-difference ratio
flight risk
floor-to-ceiling window
foucard
Francogerman
Freya
generalized correlation
get to windward of
gulja
Habaswein
half-imperial
identity confusion
immunoelectrophoretically
in nothing flat
in-service education program
injection field
Kudayn
large scale digital computer
Mbang, Mts.
memory typewriter
metallic insulation
micrergates
minus gate voltage
misestimates
Mujanovic
multi-time-scale modeling
neo-estrone
NGFI
no paging
non-arbitrariness
organic development
ornament gold
pipe relative roughness
pizano
planetesimal
Poggendoriff bichromate cell
polar cyclonic belt
posticus paralyses
proportional weight method
pyotorrhea
quantum magnetometer
quasi-experimental
Remusatia
rheopectic
Runge-Kutta method
Seriphidium borotalense
shelter-wood cutting
shipbuilding facility
shoelace
sleepwaking
stegnut
subnotebook PC
Swell-Head
Theodore Samuel Williams
thyroidism
Tindu
torticollis in newborn
tracer fibre
traffic decentration
Trip.
truck-type switch board
tubificid
uk adonis
unitless
Willamette
wound secretion