SSS 2008-06-10
时间:2019-01-08 作者:英语课 分类:Scientific American(六)月
This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute.
It might look and even feel like paper, but a new material created by scientists at MIT is designed to be an oil spill super-absorber. This technology debuted 1 in a recent issue of Nature Biotechnology. Scientists designed a mesh 2 of nanowires made of potassium manganese oxide 3. The mesh is dried in much the same manner as cellulose is treated to make paper. Between the nanowires are tiny pores that act like capillaries 4 to absorb liquid, again, like a paper towel. But the wires have a coating that repels 5 water. In fact, researchers say this material can be left in water for a month and, when taken out, will still be dry. But oil can seep 6 into those pores. The nanopaper can absorb twenty times its weight in oil. And it can be reused. Potassium manganese oxide is stable at high temperatures. So to clean it, researchers heat it above the boiling point of oil. The oil evaporates and the paper is clean again. About 200,000 tons of oil have polluted waters around the world in this decade alone. Scientists say this new nano oil cleaner could help sop 7 up inevitable 8 future spills.
Thanks for the minute for Scientific American's 60-Second Science, I am Cynthia Graber.
- In late 2003 a full-size SUV, the Pathfinder Armada, debuted. 2003年末,全尺寸SUV的探路者无敌舰队,推出。
- The album debuted at number two and quickly went platinum. 专辑一亮相就荣登排行榜第二名,很快就取得了白金销量。
- Their characters just don't mesh.他们的性格就是合不来。
- This is the net having half inch mesh.这是有半英寸网眼的网。
- Oxide is usually seen in our daily life.在我们的日常生活中氧化物很常见。
- How can you get rid of this oxide coating?你们该怎样除去这些氧化皮?
- The blood flows from the capillaries back into the veins. 血从毛细血管流回静脉。
- While Joe sleeps, a large percentage of his capillaries are inactive. 当乔睡觉时,他的毛细血管大部分是不工作的。
- His manner repels me. 他的举止让我厌恶。 来自《简明英汉词典》
- Her callous attitude repels me. 她冷酷无情的态度引起我的反感。 来自《简明英汉词典》
- My anger began to seep away.我的怒火开始消下去了。
- If meteoric water does not evaporate or run overland,it may seep directly into the ground.如果雨水不从陆地蒸发和流走的话,就可能直接渗入地下。
- I used a mop to sop up the spilled water.我用拖把把泼出的水擦干。
- The playground was a mere sop.操场很湿。
- Mary was wearing her inevitable large hat.玛丽戴着她总是戴的那顶大帽子。
- The defeat had inevitable consequences for British policy.战败对英国政策不可避免地产生了影响。