60秒科学:Cleopatra's Eyeliner: Peeper Health Keeper
Cleopatra's Eyeliner: Peeper Health Keeper
A study in the journal Analytical 1 Chemistry finds that the black eyeliner worn by ancient Egyptians may have had properties that helped ward 2 off eye-damaging bacterial 3 infections. Cynthia Graber reports
When you picture ancient Egyptian beauties such as Queen Nefertiti or Cleopatra, they’re probably wearing dramatic black eyeliner. Ancient Egyptians believed that eye makeup 4 had properties bestowed 5 by the gods protected the wearers from illness. Modern scientists determined 6 that the makeup contains often-harmful lead, so they discounted any beneficial effects. But according to research published in the journal Analytical Chemistry, the eye makeup may indeed have prevented disease.
Scientists analyzed 7 52 different samples from ancient Egyptian makeup found at the Louvre. They identified four different lead-based substances, two of which were man-made, not natural. They then applied 8 the substances to a culture of human cells. And the cells experienced a 240 percent increase in the production of nitric oxide 9, which is known to jump start the immune system.
The ancient marshy 10 Nile would have hosted many eye disease–causing bacteria. Application of the makeup may have revved 11 up cells’ immunity 12 and protected against infection. The chemical compounds were no doubt used initially 13 based on appearance. But then wearers noticed they weren’t getting eye infections. The gods got praised, but it was ancient chemists who deserved the credit.
- I have an analytical approach to every survey.对每项调查我都采用分析方法。
- As a result,analytical data obtained by analysts were often in disagreement.结果各个分析家所得的分析数据常常不一致。
- The hospital has a medical ward and a surgical ward.这家医院有内科病房和外科病房。
- During the evening picnic,I'll carry a torch to ward off the bugs.傍晚野餐时，我要点根火把，抵挡蚊虫。
- Bacterial reproduction is accelerated in weightless space. 在失重的空间，细菌繁殖加快了。
- Brain lesions can be caused by bacterial infections. 大脑损伤可能由细菌感染引起。
- Those who failed the exam take a makeup exam.这次考试不及格的人必须参加补考。
- Do you think her beauty could makeup for her stupidity?你认为她的美丽能弥补她的愚蠢吗？
- It was a title bestowed upon him by the king. 那是国王赐给他的头衔。
- He considered himself unworthy of the honour they had bestowed on him. 他认为自己不配得到大家赋予他的荣誉。
- I have determined on going to Tibet after graduation.我已决定毕业后去西藏。
- He determined to view the rooms behind the office.他决定查看一下办公室后面的房间。
- The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
- The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程，因为对他来说，爱是个不可分析的迷。 来自《简明英汉词典》
- She plans to take a course in applied linguistics.她打算学习应用语言学课程。
- This cream is best applied to the face at night.这种乳霜最好晚上擦脸用。
- 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？
- In August 1935,we began our march across the marshy grassland. 1935年8月，我们开始过草地。
- The surrounding land is low and marshy. 周围的地低洼而多沼泽。
- The taxi driver revved up his engine. 出租车司机把发动机发动起来。
- The car revved up and roared away. 汽车发动起来，然后轰鸣着开走了。 来自《简明英汉词典》
- The law gives public schools immunity from taxation.法律免除公立学校的纳税义务。
- He claims diplomatic immunity to avoid being arrested.他要求外交豁免以便避免被捕。