单词:insulation separating
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(woman) Thank you. It's great to see so many of you interested in this series on Survival in Outer Space. Please excuse the cameras - we're being videotaped for the local TV stations. Tonight I'm going to talk about the most basic aspect of survival
13 Skyscrapers and Environment In the late 1960's, many people in North America turned their attention to environmental problems, and new steel-and-glass skyscrapers were widely criticized. Ecologists pointed out that a cluster of tall buildings in a
《竞速灭绝》为《血色海湾》导演最新纪录片,科学家预测本世纪末将会有一半以上的物种从此消失,更进一步指出我们已经来到地球史上第六次大灭绝时刻,而人类正是引发第六次灭绝的因
From NPR News in Washington, I'm Barbara Klein. At least nine people have been killed and dozens injured by a bomb at a busy restaurant in Western India. Anti-terrorism forces have been dispatched to the scene and major cities around the country have
In a landmark development within stem cell research, scientists say theyve used a cloning technique to make embryonic stem cells that match a patients DNA. The journal Nature highlights a study that shows the potential for using the technology to rep
A flie photo of pharmacy [File photo: Chinanews.com] A new medical reform program is officially underway in Beijing as of this Saturday, with expectations the policy changes will end up giving patients more healthcare options and more access to the m
This is Scientific American 60-Second Science. I'm Cynthia Graber. This will just take a minute. The fridge is one of your home's biggest energy hogs. Better insulation can make refrigerators much more efficient. And a panel encasing a vacuum is one
This is Bob Smith from Channel 13 News. I'm at the scene of a miraculous rescue that occurred earlier today involving a fire, a 3-month-old baby, and the baby's dog, Lucky. Uh, the fire broke out at the three-story building behind me. Uh, unfortunate
Broadcast: Jan 21, 2003 By Gary Garriott Drying food is a simple, low-cost way to keep food safe for eating. Drying removes water that small organisms use to break down food into other substances. Som
An audio recording was published Monday that appears to capture the voices of young children crying out for the parents at a U.S. immigration detention center. The audio file was first published by the nonprofit news group ProPublica. The recording a
President Obama traveled to Montana today to promote his administration's health care initiative, telling an audience at a town hall meeting there that the news media may have bear some of the blame for overemphasis on scenes of angry protesters at
From NPR News in Washington, Im Renita Jablonsky. President Obama is revising his health overhaul plan to add some Republican proposals. But as NPRs Julie Rovner reports, theyre not likely to win many new votes. Mr. Obama said the changes were prompt
1. Toyota has announced it will recall more than 400,000 Prius and other hybrid vehicles around the globe to fix brake problems. This recall is the latest in a string of embarrassing safety problems at the world's largest automaker. This recall invol
MARY LOUISE KELLY, HOST: The Department of Homeland Security is defending the Trump administration's tough stance on immigration. Kirstjen Nielsen says her agency is simply enforcing laws already on the books, and she is responding to critics who say
RACHEL MARTIN, HOST: General John Kelly is at the center of what is arguably the most turbulent presidential administration in modern times. A decorated four-star Marine Corps general with four decades in the service, he serves as chief of staff in t
AUDIE CORNISH, HOST: Protesters are gathering in more than two dozen cities across the country to condemn the practice of separating immigrant parents and children at the southern border. At least 600 children were taken from their parents last month
Science and technology 科学技术 Astrochemistry 天体化学 The great test tube in the sky 空中的大试管 Space is one big chemistry set 宇宙是一个很大的化学装置 MOST people think of the empty space between the stars as being, wel
BEIJING, March 4 (Xinhuanet) -- Well-educated and well-paid single Chinese women were at the forefront of a boom in travel by the country's women in 2010. According to the 2010 Trend Report of Women's Travel, the amount of travel by Chinese women inc
Many houses in New Zealand are cold. Our traditional wooden house had no insulation. If you live in a house like that, you are paying for heat to escape from the ceiling, walls and under the floor. Insulation is made from material like wool or fibreg