[力] 质点系动力学

This is Scientific American's sixty seconds science, I'm Christopher Intagliata. Got a minute? Instead of installing solar paint on your roof how about just giving a house new paint job of cause you'd have to sure to use solar paint. That's what to a

发表于:2018-12-02 / 阅读(186) / 评论(0) 分类 Scientific American(十二)月

From VOA Learning English, this is the Health Lifestyle report. From Asia to Europe to North America, poor air quality is making people sick and, in some cases, killing them at an early age. Air pollution causes six million premature deaths every yea

发表于:2018-12-07 / 阅读(132) / 评论(0) 分类 2017年VOA慢速英语(四)月

OK, today we're going to talk about the mole. 今天我们来谈一下摩尔。 Now, I know what you're thinking: I know what a mole is, 我知道你现在在想:我知道摩尔是什么, it's a small furry creature that digs holes in the ground

发表于:2018-12-18 / 阅读(112) / 评论(0) 分类 TED演讲教育篇

[00:07.21]NASA's Stardust spacecraft has successfully deployed a device that will collect extremely small particles in space. [00:16.95]The particles are called dust. [00:19.72]They form a stream of particles that flows through our solar system. [00:

发表于:2018-12-26 / 阅读(95) / 评论(0) 分类 美国英语听力80篇

Big City Killer If the cigarettes don't get 1 you the traffic pollution will. Up to a fifth of all lung cancer deaths in cities are caused by tiny particles of pollution, most of them from vehicle exh

发表于:2018-12-30 / 阅读(147) / 评论(0) 分类 英语沙龙2004全年合辑上

Rob: Hello I'm Rob. Welcome to 6 Minute English. I'm joined today by Finn. Hello Finn. Finn: Hello Rob. Rob: In this programme we're talking about a serious problem that has been affecting some of the big cities in China: that's air pollution. Finn:

发表于:2019-01-07 / 阅读(116) / 评论(0) 分类 六分钟英语

This is Scientific American's 60-Second Science, I'm Steve Mirsky, got a minute? Every Star Trek fan knows theres matter and antimatter, but why is there apparently so much more matter than antimatter?Scientific American's JR Minkel: Two recent exp

发表于:2019-01-08 / 阅读(162) / 评论(0) 分类 Scientific American(四)月

睡觉的时候为啥不会打喷嚏? The signs are unmistakable: the eyes water, the chest heaves, the nosetwitches, the body tenses, suspense builds until finally a sneeze blasts forth, concluding the drama. It's a momentarily paralyzing experien

发表于:2019-01-08 / 阅读(241) / 评论(0) 分类 轻松英语

SCIENCE IN THE NEWS - December 10, 2002: Snow By George Grow VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with SCIENCE IN THE NEWS, a VOA Special English program about recent dev

发表于:2019-01-08 / 阅读(168) / 评论(0) 分类 科技之光

FAITH LAPIDUS: This is SCIENCE IN THE NEWS, in VOA Special English. Im Faith Lapidus. BOB DOUGHTY: And Im Bob Doughty. Today, we will tell you everything you wanted to know about snow. (MUSIC) FAITH LAPIDUS: Winter has returned to northern parts of t

发表于:2019-01-11 / 阅读(111) / 评论(0) 分类 2011年VOA慢速英语(一)月

Study: Upper-Atmosphere Particles Slow Pace of Global Warming A recent study finds tiny particles suspended high in Earths atmosphere are having a greater impact on global climate than previously believed. The airborne particles, known as aerosols, a

发表于:2019-01-14 / 阅读(112) / 评论(0) 分类 VOA标准英语2011年(八月)

SCIENCE IN THE NEWS - Winter Cold: Everything You Ever Wanted to Know About SnowBy George Grow Broadcast: Tuesday, January 10, 2006 (MUSIC) VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob D

发表于:2019-01-16 / 阅读(158) / 评论(0) 分类 2006年慢速英语(一)月

43 空气污染能引发心脏病 DATE=7-6-01 TITLE=ENVIRONMENT REPORT - Pollution Linked to Heart Attacks BYLINE=Cynthia Kirk (Start at 59

发表于:2019-01-30 / 阅读(268) / 评论(0) 分类 自然探索

BEIJING, Jan. 29 (Xinhua) -- Thirty percent of official cars in Beijing should not be used when there is extremely bad pollution, traffic authorities confirmed Tuesday. The order was implemented on Monday evening to help combat the fourth round of he

发表于:2019-02-04 / 阅读(250) / 评论(0) 分类 英语新闻

China's proposed supercollider will be twice the size of the Large Hadron Collider or CERN in Switzerland that helped discover the Higgs Boson or the God Particle in 2012. It will also serve as a symbol of the country's rise as a global superpower by

发表于:2019-02-07 / 阅读(121) / 评论(0) 分类 英语新闻

When smog descends on Beijing or other Asian cities, people rush to buy face masks. 当雾霾降临到北京等亚洲城市的上空时,人们争相购买口罩。 But how effective are the masks at filtering out tiny, harmful particles of pollutio

发表于:2019-02-07 / 阅读(106) / 评论(0) 分类 阅读空间

If you thought Russia's recent efforts to prevent rain in the sky from dampening holiday spirits represented the ultimate in scientific stage management, you ain't seen nothing yet. 如果你认为俄罗斯最近为了阻止雨水毁掉节日氛围的努

发表于:2019-02-09 / 阅读(139) / 评论(0) 分类 实用英语

At the same time a growing number of private firms have ambitions to mine precious metals from those celestial bodies, too. 同时,许多私营公司都有从那些天体中开采贵金属的野心。 One of the (many) problems that NASA and the sp

发表于:2019-02-16 / 阅读(155) / 评论(0) 分类 经济学人科技系列

Once stimulated, these muscles go to work and cause us to forcefully expel air from the mouth and nose. Or, in other words, we sneeze. Because the nose lining tends to swell when we lie down, making it even more sensitive to sneeze-causing particles,

发表于:2019-02-23 / 阅读(383) / 评论(0) 分类 英语时差8,16

Certainly there is no shortage of energy in the world above our heads. One thunderstorm, it has been calculated, can contain an amount of energy equivalent to four days' use of electricity for the whole United States. In the right conditions, storm c

发表于:2019-02-25 / 阅读(131) / 评论(0) 分类 万物简史
学英语单词
A-C bypass
abletee
Adamnan
adiges
airing system of life boat
ambient interference
Ambunti
amyl alcohol-iso
antiepilepsirin(e)
antirelationship
aperture equalizer
applied mineralogy
argyranthemum frutescenss
armbar
articulatio coxaes
Assel mill
attometers
Bargoens
ben amira
Bletilla hyacinthina
budget of expenditure
cdc
charge scrap
chloropyridyl
Cobandag
complete set of
diamond-skin disease
digestion gas
discontinuance of legal proceedings
elect-ions
entropy of transformations
erdle
false key
filtration mechanism
flavors
fluoromica
fundamental segment
galipot (resin)
geldanamycin
general achievement test
give sb the wall
glare ice
Gorno-Chuyskiy
graft between two types of plant
heavy duty slab milling cutter
internal energy per unit mass
keno-
knight head
local vector
macrotext
major metal
Media Lab
medorinone
Meerbeck
Meloty
mock-holiday
moragne
multi-necked flask
natrium cobaltinitrosum
neon minutus
net-like
nyatitis
oalds
orbitorrhea
original port
peaking power
periodental curette
pernem
poccosin
post-showest
pressure measurement by compression of neck
ram bending
rated maximum pressure
rational numder
reorientation
safe custody vault
salineneedle
salt price
scheme-drawing
short circuit ratio
small cardiac veins (or lesser cardiac veins)
spinal subarachnoid space
spray wire
stachybotrys reniformis
structured decisions
terms of delivery
the ss
theological
thesauruses
thunder-bolt
timber cutting saw
total absorption coefficient
triangual lock gate
TST
two-subjects
uratic conjunctivitis
whacked off
within door
wood-works
work days
works blue
younger-lookings