单词:meteorological laser radar
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By Carol Pearson Washington 30 April 2008 Ten years ago, the U.S. Food and Drug Administration approved LASIK, eye surgery with a laser that enables people to see without glasses. But about five percent of LASIK procedures fail, and those patients ca
EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can
New Laser Device Helps Parkinson's Patients Walk 新激光设备帮助帕金森患者重获行走能力 Parkinsons disease slowly destroys the brains ability to control the muscles, depriving the patients of their mobility. Researchers at the Mayo Cl
Every year on the 23rd of March, the World Meteorological Organization (WMO) celebrates World Meteorological Day (WMD). This is the date in 1950 that the WMO was created. A year later, it became a specialized agency of the United Nations to observe t
The United States Navy has demonstrated a new laser weapon operating in the Persian Gulf. The Laser Weapons System, or LaWS, is deployed on the USS Ponce transport ship. A live test firing of the weapon was recently carried out for Cable News Network
This is All Things Considered. I'm Michelle Norris. Phone calls from Sweden woke up two American scientists this morning, John Hall and Roy Glauber. They will share the Nobel Prize for Physics with a German Researcher Theodor Haensch. All three worke
The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the sci
EXPLORATIONS - The Laser: Futuristic Science Found at Your Local Store MARIO RITTER: Welcome to EXPLORATIONS in VOA Special English.Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one
Every year satellites are damaged or destroyed by objects orbiting the Earth's atmosphere. An Australian company is now using the latest laser technology to track these objects in order to reduce cosmic damage. Li Dong has the details. Even in space,
BEIJING/TAIPEI, Feb. 26 (Xinhua) -- A 6.0 magnitude earthquake hit Taiwan's Pingtung at 10:34 Beijing Time (02:34 GMT) on Sunday, said the China earthquake network center (CENC). The epicenter was monitored at 22.8 degrees north latitude and 120.8 de
By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti
JINAN, Aug. 2 (Xinhua) -- Typhoon Damrey made landfall in east China's Jiangsu province on Thursday night, bringing gales and rains to Jiangsu and its neighbouring Shandong province. Damrey, the tenth typhoon of the year, came ashore near the Chenjia
Scientists are struggling to understand why a burst of scary warming at the North Pole has pushed Arctic temperatures nearly 20C higher than normal for this time of year. 科学家们感到费解,北极突然出现的可怕变暖为何会导致北极
The National Meteorological Center (NMC) has issued a yellow alert for high temperatures as China is entering the height of summer. A heat wave will hit central, eastern and northern China today with temperatures in some regions rising to around 40 d
BEIJING, April 22 (Xinhua) -- China's meteorological authorities on Sunday issued a blue alert, the lowest level in the warning system, against sandstorms that are expected to hit the country's northwest regions. The National Meteorological Center (N
BEIJING, Jan. 29 (Xinhua) -- China's meteorological authority has introduced a new weather warning system for smog which will use readings of PM 2.5, a particle pollutant. The announcement comes as thick haze chokes many cities. The National Meteorol
BEIJING, Dec. 15 (Xinhua) -- China's meteorological authorities on Saturday issued a blue-coded alert for fog in most parts of the country's central and northern provinces from Saturday night to Sunday morning. Most parts of north China, southwest Ch
BEIJING, Jan. 21 (Xinhua) -- China's meteorological authorities said Monday that central and east China will be shrouded in fog through Tuesday morning. The National Meteorological Center (NMC) issued a blue alert for the fog. Blue is the lowest leve
Cold snap to sweep through China BEIJING, Oct. 28 (Xinhua) -- China's central and eastern regions will experience temperature drops in coming days, while the southern parts will receive moderate to heavy rain, the national meteorological watchdog for
BEIJING, July 28 (Xinhua) -- The observatory of Beijing on Saturday issued a blue alert for strong wind and hails in northeastern suburban region of the city. Strong wind, rains and hails are expected to hit northern Huairou District and Miyun County