外语教育网
您的位置:外语教育网 > 英语影音 > 双语快讯 正文
  • 站内搜索:

纳米技术造出世界最小刷子

2006-05-22 16:37何晓鸿,CRI

Scientists Create World's Smallest Brush

University of Hawaii nanotechnology experts have invented the world's smallest brush — a device boasting bristles a thousand times finer than a strand of human hair.

Mehrdad Ghasemi-Nejhad, a professor of mechanical engineering at the university, said the brush may be used to sweep nano dust, paint small micro-tubes and clean pollutants in water.

Nanotechnology involves the manufacture and manipulation of materials at the molecular or atomic level. At that scale, materials are measured in nanometers or billionths of a meter.

Ghasemi-Nejhad said the nanotechnology field could allow for the building of ever smaller chips that would reduce the size and weight of computers while increasing their speed and memory.

Nanotechnology may also allow for low-cost, better-performing fuel cells that use hydrogen as clean fuel, he said.

The tiny brush invention has earned the research team, which involves experts from Rensselaer Polytechnic Institute in Troy, N.Y., a spot in the 2007 Guinness Book of World Records.

"We need to look at the needs in the nano-world, where machines and materials can be the size of atoms and molecules," said UH doctoral student Vinod P. Veedu. "As in the 'bigger' world, there are messes to sweep, walls to paint, tubes to unclog and electronics to power. So our invention ... demonstrates a way to make the tiniest of brushes to do these jobs."

Ghasemi-Nejhad founded the Hawaii Nanotechnology Laboratory in his UH department three years ago in part to train workers for a growing industry.


美国夏威夷大学的纳米技术专家日前制造出世界上体积最小的刷子,他们说这种刷子的刷毛只有一根头发丝的千分之一那么细。

据美联社5月16日报道,夏威夷大学的机械工程学教授卡西米-内哈德说,这种刷子可以被用来打扫只有纳米(一米的十亿分之一)大小的尘埃和给微细管道上涂料,还可以用它来清除水里的污染物。纽约州伦塞拉尔理工学院的专家也参与了这项发明过程。这种超纤细的刷子已被收入2007年吉尼斯世界纪录。

利用纳米技术,人们可以在分子或原子级别进行制造和加工工序。卡西米-内哈德说,通过采用纳米技术,科学家还能制造出体积更小、运算速度更快、容量更大的芯片,同时减小计算机的尺寸。这种技术还将用来制造燃料电池,这种电池成本低,能效高,使用氢作为清洁能源。

夏威夷大学的博士研究生维迪表示,与人们日常接触的宏观世界一样,微观世界中也需要垃圾工、油漆匠和管道工。利用纳米技术,人们可以制造出只有原子和分子大小的各种机器与材料来完成这些工作。

相关热词:bilingual news study
考试英语系列辅导课程
周 涵著名职称英语辅导专家,十余年职称英语教学实践……详情>>
周涵:职称英语辅导名师
赵文通资深学位英语辅导专家,深谙命题方向及重点、难点……详情>>
赵文通:学位英语考试辅导名师
冉老师北京大学博士,知名高校教师,雅思权威辅导专家……详情>>
冉老师:雅思考试辅导名师

  1、凡本网注明 “来源:外语教育网”的所有作品,版权均属外语教育网所有,未经本网授权不得转载、链接、转贴或以其他方式使用;已经本网授权的,应在授权范围内使用,且必须注明“来源:外语教育网”。违反上述声明者,本网将追究其法律责任。
  2、本网部分资料为网上搜集转载,均尽力标明作者和出处。对于本网刊载作品涉及版权等问题的,请作者与本网站联系,本网站核实确认后会尽快予以处理。本网转载之作品,并不意味着认同该作品的观点或真实性。如其他媒体、网站或个人转载使用,请与著作权人联系,并自负法律责任。
  3、联系方式
  编辑信箱:for68@cdeledu.com
  电话:010-82319999-2371