SSS 2011-03-08
时间：2019-01-08 作者：英语课 分类：Scientific American(三)月
This is Scientific American’s 60-Second Science. I’m Cynthia Graber. This will just take a minute.
Wine can help keep conversation flowing at a dinner party. And now it looks like that wine may aid in materials science as well. Japanese researchers discovered that hot alcoholic 1 beverages 2 induce superconductivity in iron-based compounds.
These compounds can become superconducting by being exposed to oxygen, but it takes months. Scientists have been searching for a way to speed that up. So researchers at Japan’s National Institute for Materials Science decided 3 to test the reaction with alcohol.
They put samples of the compounds in red and white wines, beer, sake, shochu— another Japanese alcohol—and whiskey. There were controls of water-ethanol mixtures.
The samples were heated to 70 degrees Celsius 4 for 24 hours. The water ethanol mixtures didn’t have much of an effect, but the drinks did induce superconductivity—red wine best of all.
The scientists speculate there may be particular elements in red wine that replace elements in the iron-based compounds. It may be that wine speeds up the supply of oxygen into the samples. The researchers say the next step is to analyze 5 the beverages to figure out just what’s inducing superconductivity. And maybe sneak 6 a sip 7 in the process.
Thanks for the minute. For Scientific American’s 60-Second Science, I’m Cynthia Graber.
- The alcoholic strength of brandy far exceeds that of wine.白兰地的酒精浓度远远超过葡萄酒。
- Alcoholic drinks act as a poison to a child.酒精饮料对小孩犹如毒药。
- laws governing the sale of alcoholic beverages 控制酒类销售的法规
- regulations governing the sale of alcoholic beverages 含酒精饮料的销售管理条例
- This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
- There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。
- The temperature tonight will fall to seven degrees Celsius.今晚气温将下降到七摄氏度。
- The maximum temperature in July may be 36 degrees Celsius.七月份最高温度可能达到36摄氏度。
- We should analyze the cause and effect of this event.我们应该分析这场事变的因果。
- The teacher tried to analyze the cause of our failure.老师设法分析我们失败的原因。
- He raised his spear and sneak forward.他提起长矛悄悄地前进。
- I saw him sneak away from us.我看见他悄悄地从我们身边走开。