光能

Passage 20 Waves How does light get from the sun to the earth? How does music get from the stage to the audience? They move the same way in waves! Light and sound are forms of energy. All waves carry energy, but they may carry it differently. Light

发表于:2018-11-30 / 阅读(178) / 评论(0) 分类 英语专业四级听写

How does light get from the sun to the earth? How does music get from the stage to the audience? They move the same way in waves! Light and sound are forms of energy. All waves carry energy, but they may carry it differently. Light and sound travel t

发表于:2018-12-01 / 阅读(180) / 评论(0) 分类 新东方CET6阅读

Now the speed of light is a very,very big number. 光速是个很大的数字 So if we just take a small amount of mass, 所以只要一点点质量 you get a huge amount of energy. 就含有大量能量 And that's the energy which actually powers ou

发表于:2018-12-07 / 阅读(177) / 评论(0) 分类 太阳科普

Broadcasting Time: 07:00-08:00, GMT+08:00, 2010-04-24 Hello and Welcome to News and Reports on China Radio International. In This Edition With heavy snow and biting winds creating new challenges in the earthquake zone in Qinghai, health officials are

发表于:2018-12-11 / 阅读(142) / 评论(0) 分类 2010CRI中国国际广播电台

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h

发表于:2018-12-12 / 阅读(138) / 评论(0) 分类 英语小短文

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the

发表于:2018-12-15 / 阅读(218) / 评论(0) 分类 新东方背诵文选

This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because

发表于:2018-12-24 / 阅读(145) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Engineers are always plugging away to get better energy efficiency out of our products -- like cars that guzzle less gas or light bulbs that burn brighter on f

发表于:2018-12-24 / 阅读(124) / 评论(0) 分类 Scientific American(八)月

MR CAVORS FLYING MACHINE When I first met Mr Cavor, he was about to finish building the machine in which he planned to travel to the moon. As it had neither wings nor an engine, I was amazed and asked him how his machine could fly. The secret lay in

发表于:2018-12-29 / 阅读(182) / 评论(0) 分类 人教高中英语高二

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h

发表于:2018-12-30 / 阅读(104) / 评论(0) 分类 考研背诵50篇

(Woman) Today I want to talk about the Earth's last major climatic shift, at the end of the last ice age. But first, let's back up a moment and review what we know about climatic change in general. First, we defined climate as consistent patterns of

发表于:2018-12-30 / 阅读(158) / 评论(0) 分类 托福听力短文

One main goal in the renewable energy field is to find an efficient, inexpensive way to split water into hydrogen and oxygen. The hydrogen could then be used as a fuel source for vehicles or fuel cells. Typically, an electric current breaks the water

发表于:2019-01-08 / 阅读(143) / 评论(0) 分类 Scientific American(四)月

The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into

发表于:2019-01-08 / 阅读(184) / 评论(0) 分类 英语小短文

Want to create a high performance environment? My guess is that you already know many of the characteristics listed below. But, you may need some incentive to motivate you to create that type of space. In high performance environments you * are comfo

发表于:2019-01-08 / 阅读(130) / 评论(0) 分类 英语小短文

Mr Cavors Flying Machine When I first met Mr Cavor, he was about to finish building the machine in which he planned to travel to the moon.As it had neither wings nor an engine,I was amazed and asked him how his machine could fly.The secret lay

发表于:2019-01-09 / 阅读(291) / 评论(0) 分类 高中英语听力人教版第二册

But this still doesn't explain why light is able to pass through glass rather than being absorbed as with most solids. 但是这还是不能解释为什么光可以穿透玻璃而不是像其他大多固体那样被吸收。 For that, we need to go a

发表于:2019-01-17 / 阅读(115) / 评论(0) 分类 TED演讲教育篇

By Prospero Laput Zamboanga del Norte, Philippines 16 July 2007 Electricity has yet to reach hundreds of villages in the Philippines. The Philippine government is tapping innovative technology to light up some villages, but in this report by producer

发表于:2019-01-21 / 阅读(157) / 评论(0) 分类 2007年VOA标准英语(七月)

最近有科学家正在研发一种全新的电子纸技术,这种电子纸其实就是一种超薄的柔性显示屏,具有很高的能效性,并且在阳光直射或明亮环境中也可以清晰地显示出内容。这种柔性显示屏的厚

发表于:2019-02-03 / 阅读(87) / 评论(0) 分类 阅读空间

Looking up at the night sky, we are amazed by how it seems to go on forever. 仰望夜空,我们为它的永无止境而感到惊讶。 But what will the sky look like billions of years from now? 然而数十亿年前的天空又会是什么样子呢

发表于:2019-02-13 / 阅读(116) / 评论(0) 分类 TED演讲教育篇

The atmospheric pressure as we climb is getting so low 气压在逐渐减小 that without any air supply,I'd be unconscious within 20 seconds. 如果不戴呼吸器 不用20秒我就会休克过去 I have to breathe 100% oxygen to avoid getting nitro

发表于:2019-02-17 / 阅读(109) / 评论(0) 分类 荒野求生
学英语单词
3-fluorohydrocinnamic acid
anteroconid
antisemitism
avg (average)
axial cord
Battle of Kerbala
biosamples
bo'suns
bottom echo
bronze tripod
carrot juices
Carutapera
chesht-e sharif
cholatrienic acid
closed loop gain
colloidal species in seawater
conservancy system
cryofreeze
cubitalis posterior
Cumiana
decarbonized steel
decentralized estimator
decimal signal
deformation of crystal
design sheet
direct product of finite family of sets
discretional
duoformer
Eastwooding
electromagnetic feeder
emotional amenorrhea
Erythropalum scandens
ex customs shed
expose sth. to the light of day
extralimitary
feculae
FGMOS (floating-gate metal-oxide-semiconductor)
Flashburn
flutolanil
forest on land liable to inundation
geometry of reals
germanium thermometer
get off sb's back
graduation project
guilty but mentally ill (gbmi)
hankoes
high-capacity memory
high-gravity fuel
hold space
Israelify
junction traffic
kevlar fiber reinforced plastics (kfrp)
Langenbeck
large-scale land holding
latewood
limitof detection
low-mass x-ray binary
Maravi Confederacy
mast hoist-full hydraulic cylinder
microsporous
mooney scorch
multicomponent spectrum
nitrogen sealed transformer
not get over sth
Névache
open-end wrenches
particular legacy
pay as one go
pebble weave
Pedicularis praeruptorum
phacus obolus
plug gage
PMed
political machines
polyether-chlorinate
polymix
radio-thermy
raisbeck
releaser stimulus
remediable
saxls
scentings
seal for pressure vessel
shellstructure
simultaneous techniques of thermal analysis
slitless
speakeasy
Steinhart Aquarium
stirer
stress optical coefficient
supply cord
tape depth-gauge
tulce
tyrment
unpushy
unwiving
vernacularize
vibratory rammer
wage administration procedure
white pizzas
ynez
zapatero