SSS 2008-12-02
时间：2019-01-08 作者：英语课 分类：Scientific American(十二)月
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute.
M.I.T. scientists have designed a new robot. You’ll probably never see it though—it’s meant to be hidden. Because it’s a robot clam 1. Engineers wanted to design a lightweight anchor that could be easily set and then picked up. That’s not possible with conventional anchors. A more talented anchor would be great for, say, small submarines that move around constantly to test ocean temperatures and currents.
Razor clams 2 presented the ideal biological model. They can burrow 3 a centimeter per second more than two feet down into the soil, where they can anchor themselves tightly to the ocean floor. Scientists set up a glass box with water and beads 4 and stuck a living razor clam inside. They filmed what happened next. The animal’s foot wiggled into the beads. The rest of the clam followed by moving quickly up and down and rapidly opening and closing its shell. By carefully analyzing 5 the film, the scientists discovered something surprising. The clam’s movements turn the sand around the creature into more of a fluid—basically quicksand. By copying this system, M.I.T. researchers created a tiny RoboClam. It’s the size of a cigarette lighter 6. If they add artificial intelligence, we can find out if the device is happy as a clam.
Thanks for the minute for Scientific American's 60-Second Science. I'm Cynthia Graber.
- Yup!I also like clam soup and sea cucumbers.对呀！我还喜欢蛤仔汤和海参。
- The barnacle and the clam are two examples of filter feeders.藤壶和蛤类是滤过觅食者的两种例子。
- The restaurant's specialities are fried clams. 这个餐厅的特色菜是炸蚌。 来自《简明英汉词典》
- We dug clams in the flats et low tide. 退潮时我们在浅滩挖蛤蜊。 来自辞典例句
- Earthworms burrow deep into the subsoil.蚯蚓深深地钻进底土。
- The dog had chased a rabbit into its burrow.狗把兔子追进了洞穴。
- a necklace of wooden beads 一条木珠项链
- Beads of perspiration stood out on his forehead. 他的前额上挂着汗珠。
- Analyzing the date of some socialist countries presents even greater problem s. 分析某些社会主义国家的统计数据，暴露出的问题甚至更大。 来自辞典例句
- He undoubtedly was not far off the mark in analyzing its predictions. 当然，他对其预测所作的分析倒也八九不离十。 来自辞典例句