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
Fermi Problem On a Monday morning in July, the world’s first atom bomb exploded in the New Mexico desert. Forty seconds la
Fermi Problem On a Monday morning in July, the world’s first atom bomb exploded in the New Mexico desert. Forty seconds la
admin
2010-01-14
28
问题
Fermi Problem
On a Monday morning in July, the world’s first atom bomb exploded in the New Mexico desert. Forty seconds later, the shock waves reached the base camp where the Italian-American physicist Enrico Fermi and his team stood. After a mental calculation, Fermi announced to his team that the bomb’s energy had equated 10,000 tons of TNT. The bomb team was impressed, but not surprised. Fermi’s genius was known throughout the scientific world. In 1938 he had won a Nobel Prize. Four years later he produced the first nuclear chain reaction, leading us into the nuclear age. Since Fermi’s death in 1954, no physicist has been at once a master experimentalist and a leading theoretician.
Like all virtuosos, Fermi had a distinctive style. He preferred the most direct route to an answer. He was very good at dividing difficult problems into small, manageable bits—talent we all can use in our daily lives.
To develop this talent in his students. Fermi would suggest a type of question now known as a Fermi problem. Upon first hearing one of these, you haven’t the remotest notion of the answer, and you feel certain that too little information had been given to solve it. Yet when the problem is broken into sub-problems, each answerable without the help of experts or books, you can come close to the exact solution.
Suppose you want to determine Earth’s circumference without looking it up. Everyone knows that New York and Los Angeles are about 3,000 miles apart and that the time difference between them is three hours. Three hours is one eighth of a day, and a day is the time it takes the planet to complete one rotation, so its circumference must be eight times 3,000 or 24,000 miles. This answer differs from the true value, 24,902.45 miles, by less than four percent.
Ultimately the value of dealing with everyday problems the way Fermi did lies in the rewards of making independent discoveries and inventions: It doesn’t matter whether the discovery is as important as determining the power of an atom or as small as measuring the distance between New York and Los Angeles. Looking up the answer, or letting someone else find it, deprives you of the pleasure and pride that accompany creativity, and deprives you of an experience that builds up self-confidence. Thus, approaching personal dilemmas as Fermi problems can become a habit that enriches your life.
Fermi’s team was impressed by Fermi’s announcement in the base camp because he could even work out the power of the atom bomb in his mind.
选项
A、Right
B、Wrong
C、Not mentioned
答案
A
解析
答案在第一段中可以找到。Fermi在作了一番mental calculation以后,得出了该原子弹具有相当于 10,000吨TNT的爆炸力。
转载请注明原文地址:https://kaotiyun.com/show/1uhd777K
本试题收录于:
职称英语理工类基础题库职称英语分类
0
职称英语理工类基础
职称英语
相关试题推荐
Thepassageindicatesthatancienttreatmentsforinjuryanddiseasewere______.WhichofthefollowingstatementsisNOTtrue?
Hewassaidtohavebeenremovedfromthepositionofmanagerforarecentconflictwithanimportantcustomer.
TheGreatNewspaperWarUpuntilabout100yearsago,newspapersintheUnitedStatesappealedonlytothemostseriousreaders.
FriendsMayBeKeytoLivingLongerLookingforthesecretofalonglife?Lookcloselyatyourfriends.Newresearchsuggestst
Peoplefrommanyplacesweredrawntothecitybyitsgrowingeconomy.
LudwigVanBeethovenLudwigVanBeethoven,amajorcomposerofthenineteenthcentury,overcamemanypersonalproblemstoac
In1861,itseemedinevitablethattheSouthernstateswouldbreakawayfromtheUnion.
NaturalHealthCareNaturalhealthcareisaphilosophyandasetofprinciplesandpracticesbasedonsciencethatleadtoane
A.beforethecancercellsspreadelsewhereB.themorechancesofdyingofX-rayradiationhewillhaveC.whatismostrespons
Themotherofthethreechildrenisthemanagerofalargecircus.CharleshitDavidintheeye.
随机试题
A.慢性酒精中毒所致精神障碍B.病毒性脑炎所致精神障碍C.双相障碍D.精神分裂症E.分离转换性障碍幻觉症最常见的精神疾病是
排卵性功血的治疗原则是
诊断炭疽的Ascoli试验属于()
治疗热淋涩痛,宜选用
下列选项中,属于单位(子单位)工程安全和功能检查资料核查及主要功能抽查记录的建筑结构部分,安全和功能检查项目的是()。
为确保建设工程项目施工质量,发包人可以要求承包人提供维修保函或扣留保留金,下列表述中正确的有()。
首次公开发行有明确锁定期的股票,同一股票在交易所上市后,按交易所上市的同一股票的市价估值。()
下列各项中,属于注册会计师鉴证业务的是( )。
确定岗位评价要素和指标时,要使不同岗位之间可以在时间上或空间上进行对比,这体现了()的原则。
A、 B、 C、 D、 A各项依次是分子是和数列;分母是公差为3的等差数列。
最新回复
(
0
)