首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Graphene’s Superstrength Big technology comes in tiny packages. New cell phones and personal computers get smaller every year
Graphene’s Superstrength Big technology comes in tiny packages. New cell phones and personal computers get smaller every year
admin
2012-12-06
73
问题
Graphene’s Superstrength
Big technology comes in tiny packages. New cell phones and personal computers get smaller every year, which means these electronics require even smaller components on the inside. Engineers are looking for creative ways to build these components, and they’ve turned their eyes to graphene, a superthin material, made of carbon, that could change the future of electronics.
This year’s Nobel Prize for Physics has been awarded to Andre Geim and Kostya Novoselov from the University of Manchester, UK. for the discovery of graphene. Graphene isn’t just small, it’s "the thinnest possible material in this world." says Novoselov. He calls it a "wonder material." It’s so thin that you would need to stack about 25,000 sheets just to make a pile as thick as a piece of ordinary white paper. If you were to hold a sheet of graphene in your fingers, you’d have no idea because you wouldn’t be able to see it.
Carbon is one of the most abundant elements in the universe. Every known kind of life contains carbon. Graphene is a sheet of carbon, but only one atom thick. You don’t have to look far to find graphene—it’s all around you.
If you want this high-tech wonderstuff, all you need is a pencil, paper and a little adhesive tape. Use the pencil to shade a small area on the paper, and then apply a small piece of adhesive tape over the area. When you pull up the tape, you’11 see that it pulls up a thin layer of some of the shading from your pencil. That layer is called graphite, one of the softest minerals in the world.
Now stick the same piece of tape on another sheet of paper and pull the tape up—there should be an even thinner layer, this time left on the paper. Now imagine that you do this over and over, until you get the thinnest possible layer of material on the paper. This layer would be only one atom thick, and you wouldn’t be able to see it. Graphite is made of layers of graphene. So when you get to the thinnest possible layer, you’ve found graphene.
What would change the future of electronics according to engineers?
选项
A、Personal computer.
B、Big technology.
C、Graphene.
D、Creative ways.
答案
C
解析
转载请注明原文地址:https://www.kaotiyun.com/show/5LQd777K
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
MenTooMaySufferFromDomesticViolenceNearlythreein10menhaveexperiencedviolenceatthehandsofanintimatepartn
LudwigVanBeethovenLudwigVanBeethoven,amajorcomposerofthenineteenthcentury,overcamemanypersonalproblemstoac
TryingtoFindaPartnerOneofthemoststrikingfindingsofarecentpollintheUKisthatofthepeopleinterviewed,one
Canadalkea:WhataGreatPlaceforYoutoShopTherearemanydifferentstoresthatpeoplegotoinordertobuyvarioushou
HealthyFoodStreetsellers,particularlyindevelopingcountries,supplylargeamountsoffood(51)peopleonlowincomes.Thi
HealthyFoodStreetsellers,particularlyindevelopingcountries,supplylargeamountsoffood(51)peopleonlowincomes.Thi
OnlineCancerChatwithaSafetyNetCancerResearchUKhaslaunchedanonlinechatforumforcancerpatientstoswap(交换)st
GlucosecannotbeturnedintoenergyinthebodyTheworsteyedamageinducedbydiabetesis
Acetateisoneofthemostimportantartificialfibers.
Idon’tfeelsecurewhenIamaloneinthehouse.
随机试题
Intenet中的WWW服务使用的协议是
对健康的认识不正确的是
下列属于肝硬化失代偿期患者肝功能减退的表现是
A.酮替芬B.色甘酸钠C.沙丁胺醇D.异丙托溴铵E.氟替卡松治疗慢阻肺时,病毒、真菌、细菌感染患者慎用的药物是
某幼儿园一群幼儿围着火炉烤火,教师张某离园取东西。幼儿甲玩火点燃了幼儿乙的衣服,乙带火跑出教室,被人发现将火扑灭。经检查,乙被烧伤面积达35%,住院治疗造成经济损失13000余元,这一损失应()。
以下不符合报考人民警察资格条件的有()。(2018年北京.多选62)
所给四个选项中与示例图形有共性的一项是:
一般的日用工业品市场和副食品市场接近()。
(2013年单选30)《竹书纪年》记载:“夏帝芬三十六年作圜土。”这里的“圜土”是指()。
有以下程序#include<stdio.h>main(){FILE*fp;inti,a[6]={1,2,3,4,5,6};fp=fopen("d3.dat","w+b");fwrite(a,size
最新回复
(
0
)