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
40
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 was famous for inventing a device to calculate bomb’s energy accurately.
选项
A、Right
B、Wrong
C、Not mentioned
答案
C
解析
文章根本没有提到他发明了一台能精确计量炸弹能量的仪器。
转载请注明原文地址:https://kaotiyun.com/show/Iuhd777K
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
TheGreatNewspaperWarUpuntilabout100yearsago,newspapersintheUnitedStatesappealedonlytothemostseriousreaders.
PassiveSmokingisWorkplaceKillerPressuremountedonBritainonMondaytotakeactionon(1)smokingwithnewresearchshowing
PushbikePerilLowspeedbicyclecrashescanbadlyinjure—orevenkill—childreniftheyfallontotheendsofthehandlebars(车把
Theyshouldnotsacrificeenvironmentalprotectionstofostereconomicgrowth.
Thesepaintingsareconsideredbymanytobe(authentic).
Obesity(肥胖)intheWesternWorldObesityisrapidlybecominganewproblemofthewesternworld,delegatesagreedatthe11t
Theleaveshavebeensweptintohugeheaps.
DeforestationandDesertification(沙漠化)TheSahelzoneliesbetweentheSaharadesertandthefertilesavannahs(热带大草原)ofnort
AInsectsandSurfaceTensionBExpansionandContractionCTemperatureofBoilingPointofLiquidsDPrincipalsinphysics
DriedFoodsCenturiesago,mandiscoveredthatremovingmoisture(51)foodhelpedtopreserveit,andthattheeasiestwaytodot
随机试题
治疗DIC的关键是
审美境界的特点是什么?
DuringtheOlympicGames,peoplefromallovertheworldcometogetherinpeaceandfriendship.ThefirstOlympicGamesthatwe
男性,73岁,左面颊部有一直径1.5cm的浅溃疡,周围隆起、质硬。皮下有成巢、成片状排列的细胞,丰富的嗜酸性胞质,泡状细胞核。可见明显的细胞间桥,中心有角化。伴有慢性炎细胞浸润。病理诊断是
可以检查后交叉韧带损伤的是
由人民法院直接受理的案件即自诉案件包括哪些案件?
消防水泵房主要人行通道宽度不宜小于()
根据增值税法律制度的规定。下列出口货物中,免税但不退税的有()。(2013年)
在同旅游者谈论我国重大政治问题时,如出现意见分歧,导游员应持有的态度是()。
下面是一次习题课的教学摘录。[任务驱动]出示任务:如何区分纯碱和小苏打?(学生经过独立思考和小组合作,形成方案)[交流评价]教师巡视并选取四个典型实验方案,让各小组评价方案的可行性并全班交流,教师点评。方案1:加热通入澄清的石灰水石灰水是否变浑
最新回复
(
0
)