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SSS 2008-11-04

时间:2010-05-15 05:40来源:互联网 提供网友:木渐浅。   字体: [ ]
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    (单词翻译:双击或拖选)

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute.

 

 

It’s true that if you eat a lot of what’s fondly dubbed1 the stinking2 rose, others might notice a faint whiff of eau de garlic in your sweat. But even the pungent3 bulb can’t mask your natural scent4. In fact, scientists from the Monell Center in Philadelphia say that an individual’s scent is impossible to mask through food. They published this research in the online journal Public Library of Science One.

All mammals have specific genetically-determined smells, known as odor types. Special sensor5 mice were trained to recognize other mice by their odor types. Then the odiferous mice were fed diets designed to mask their odors. They did smell different when they ate different food. But even with the dietary changes, the sensor mice could pick out the individual, personal smells.

This means our odorprint may be as individual as our fingerprints6. Scientists say if animals can determine individual scents7, then sensors8 could be designed to do the same thing. This could lead to new devices to detect those odorprints. Which means that future criminals may have to worry about wiping away fingerprints and whatever body odor they leave behind.

 

Thanks for the minute for Scientific American's 60-Second Science. I'm Cynthia Graber.

 


点击收听单词发音收听单词发音  

1 dubbed dubbed     
v.给…起绰号( dub的过去式和过去分词 );把…称为;配音;复制
参考例句:
  • Mathematics was once dubbed the handmaiden of the sciences. 数学曾一度被视为各门科学的基础。
  • Is the movie dubbed or does it have subtitles? 这部电影是配音的还是打字幕的? 来自《简明英汉词典》
2 stinking ce4f5ad2ff6d2f33a3bab4b80daa5baa     
adj.臭的,烂醉的,讨厌的v.散发出恶臭( stink的现在分词 );发臭味;名声臭;糟透
参考例句:
  • I was pushed into a filthy, stinking room. 我被推进一间又脏又臭的屋子里。
  • Those lousy, stinking ships. It was them that destroyed us. 是的!就是那些该死的蠢猪似的臭飞船!是它们毁了我们。 来自英汉非文学 - 科幻
3 pungent ot6y7     
adj.(气味、味道)刺激性的,辛辣的;尖锐的
参考例句:
  • The article is written in a pungent style.文章写得泼辣。
  • Its pungent smell can choke terrorists and force them out of their hideouts.它的刺激性气味会令恐怖分子窒息,迫使他们从藏身地点逃脱出来。
4 scent WThzs     
n.气味,香味,香水,线索,嗅觉;v.嗅,发觉
参考例句:
  • The air was filled with the scent of lilac.空气中弥漫着丁香花的芬芳。
  • The flowers give off a heady scent at night.这些花晚上散发出醉人的芳香。
5 sensor sz7we     
n.传感器,探测设备,感觉器(官)
参考例句:
  • The temperature sensor is enclosed in a protective well.温度传感器密封在保护套管中。
  • He plugged the sensor into a outlet.他把传感器插进电源插座。
6 fingerprints 9b456c81cc868e5bdf3958245615450b     
n.指纹( fingerprint的名词复数 )v.指纹( fingerprint的第三人称单数 )
参考例句:
  • Everyone's fingerprints are unique. 每个人的指纹都是独一无二的。
  • They wore gloves so as not to leave any fingerprints behind (them). 他们戴着手套,以免留下指纹。 来自《简明英汉词典》
7 scents 9d41e056b814c700bf06c9870b09a332     
n.香水( scent的名词复数 );气味;(动物的)臭迹;(尤指狗的)嗅觉
参考例句:
  • The air was fragrant with scents from the sea and the hills. 空气中荡漾着山和海的芬芳气息。
  • The winds came down with scents of the grass and wild flowers. 微风送来阵阵青草和野花的香气。 来自《简明英汉词典》
8 sensors 029aee483db9ae244d7a5cb353e74602     
n.传感器,灵敏元件( sensor的名词复数 )
参考例句:
  • There were more than 2000 sensors here. 这里装有两千多个灵敏元件。 来自《简明英汉词典》
  • Significant changes have been noted where sensors were exposed to trichloride. 当传感器暴露在三氯化物中时,有很大变化。 来自辞典例句
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TAG标签:   SSS  odiferous  SSS  odiferous
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