单词:radiation theory
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生活半对半[The 50-Percent Theory of Life] I believe in the 50-percent theory. Half the time things are better than normal; the other half, they are worse. I believe life is a pendulum swing. It takes time and experience to understand what normal
The Aldens followed the bike path through North Ridge Park on their way home from Cals house. The trees sheltered them from the wind, so it was easier pedaling here. The bike path became a narrow dirt trail through the thickest part of the woods and
This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 Japan's nuclear crisis may mean greater demand for imported food and less competition from Japanese products on world markets. But it also means that
Doctors use X-rays to view internal organs, obtain clear images of possible disease and to treat cancer. For years radiation has been used to save lives, but there is growing concern that some patients are getting more than they ask for when they und
Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. U
This is the VOA Special English Health Report. The crisis at the damaged Fukushima Dai-Ichi Nuclear Power Station in northern Japan has raised worries about radiation risks. We spoke Tuesday with Jonathan Links, an expert in radiation health sciences
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Animals rely on all sorts of cues to find their next meal. Monkeys and birds are attracted to the colors of ripe fruits and berries. And snakes find thei
ECONOMICS REPORT - Work on 'Game Theory' Wins Nobel Prize for Two Economists By Mario Ritter Broadcast: Friday, October 14, 2005 I'm Bob Doughty with the VOA Special English Economics Report. Robert A
Human exploration of Mars is now an official goal of the National Aeronautics and Space Administration (NASA). Last month, U.S. President Donald Trump signed a bill to increase NASAs budget. The law sets spending at $19.5 billion for the 12-month per
U.S. health experts monitoring Japan's nuclear crisis are seeking to explain health risks from radiation(放射) exposure, while cautioning that radiation levels measured this week at the Fukushima-Daiichi power plant in northern Japan have not y
DOUG JOHNSON: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Doug Johnson. FAITH LAPIDUS: And I'm Faith Lapidus. Today, we will tell about skin cancer. (MUSIC) DOUG JOHNSON: Skin cancer is one of the most common forms of cancer. It is also
Japanese Town Split by Radiation Evacuation Zone It is an extraordinary meeting of the Kawauchi village assembly. Because of severe damage to the village's municipal hall from the earthquake, the public gathering has been convened at a community cent
Japan raised the severity of the Fukushima nuclear crisis from four to five on a seven-point scale of international nuclear events. Fears of radiation exposure has caused a run on salt products all across the region, including in China, where shopper
The World Health Organization (WHO) warns against the indiscriminate(任意的无差别的) use of potassium iodide as a precaution against nuclear radiation. WHO is issuing this advisory following reports of people in Japan and elsewhere who are usi
A key Japanese adviser on radiation(放射 ) leaks at the country's disabled Fukushima nuclear power facility has quit in protest over the government's handling of the disaster. The adviser, Toshiso Kosako, a radiation safety expert at the Univer
NEW DELHI, March 16 (Xinhua) -- The Indian government has ordered food originating from(发源于) Japan to be tested for radiation in the wake of explosions at a Japanese nuclear plant following a devastating earthquake-tsunami last Friday, repo
Public opinion polls suggest most Americans favor full body scanners as a way to protect against terror attacks on commercial airliners. The benefits of scanners are being debated in a number of countries. Some groups have raised privacy issues. But
WASHINGTON, March 30 (Xinhua) -- A trace amount of radioactive(辐射性的) iodine(碘) has been found in a sample of milk from the west state of Washington, the U.S. Environmental Protection Agency and the Food and Drug Administration (FDA) sai
美剧《生活大爆炸》搞笑主题曲:Big Bang Theory Artist:Barenaked Ladies Song:Big Bang Theory Our whole universe was in a hot dense state, 宇宙一度又烫又稠密 Then nearly fourteen billion years ago expansion started. Wait... 140亿年
我们今天一起来看看白洁最喜欢的电视剧之一!Big Bang Theory! 生活大爆炸! 我们一起来学6季17集的美语说法! 1) How'd it go? 过得怎么样?2) Body language 身势语。如果你能看出某人有什么感觉,那就