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
Prior to 1905, space and time were comfortable absolutes. Over 250 years of practical experience and experimentation had firmly
Prior to 1905, space and time were comfortable absolutes. Over 250 years of practical experience and experimentation had firmly
admin
2010-06-18
35
问题
Prior to 1905, space and time were comfortable absolutes. Over 250 years of practical experience and experimentation had firmly established the supremacy of the physics of Sir Isaac Newton. The picture of the universe painted by Newton was one of amazing clarity and practical value. The motions of projectiles, pendulums, steam engines, and even distant planets could be readily explained using the brilliant 17th century physicist’s theories. However, certain phenomena, including how light was able to travel in a vacuum and the exact nature of gravity continued to elude satisfactory scientific explanation.
While searching for a solution to the failure of the now famous Michelson-Morey experiment, Albert Einstein( who left Germany when the Nazis took power, and became an American citizen in 1940 ) discovered his Special Theory of Relativity. A few years later, he expanded his theory into an all-encompassing grand view of the universe. His General Theory of Relativity was the first to describe the nature of gravity. The General Theory describes a four dimensional universe in which the three spatial dimensions are coupled with a fourth, time. Any object in the universe with mass is described as causing a warp, or curve into the very structure of spacetime itself. Gravity is shown to be a result, not of some unforeseen, mysterious force, but as a function of the curvature of space itself. All matter, from the tiniest sub-atomic particle to the most massive of galaxies, will induce this curvature.
This idea is frequently explained by describing space as a rubber sheet, and a body such as the sun as a bowling hall. If the hall is placed on the rubber sheet, the sheet will bend under the weight of the ball, forming a gravity well. Thus, the orbits of the planets can be seen to result from them "rolling" around the mouth of the sun’s gravity well. Of course, this analogy is but a shadow of the tree nature of space. In reality, this gravity well is a four dimensional structure. Shortly after publication of the General Theory, physicists began to explore this strange new world.
It can be inferred from the simplicity of the example of the bowling ball and rubber sheet to describe Einstein’s theory that______.
选项
A、this was how Einstein reached his conclusions
B、Einstein used this example to explain his theory to students
C、the theory is so complex that a more detailed example would not allow most people to quickly understand the general idea
D、any theory is just a way of trying to explain something for which there is no certainty, so a simple example is sufficient
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/SnlO777K
0
专业英语八级
相关试题推荐
InAustralia,reportsaboutAboriginalpeopleoftenmakefordepressingreading.Justafewdaysago,thelatestofficialreport
InBolivia,lifeisslowlyreturningtonormalafteralmostamonthofdemonstrations.【C1】______—frompoorpeasantfarmerstomi
Whatweretheythinking,thecrowdattheTelfordshoppingcentrewhereIanLamstoodswayingonahighledge?Whatmadethemlo
TheOxfordWordfinder(OWF)isa"productiondictionary"designedforlearnersforEnglishatintermediatelevelandabove.Iti
Whichofthefollowingnovelscanberegardedastypicallybelongingtotheschoolofliterarymodernism?
WhowasthefirstEnglishkingtobringallIrelandunderEnglishcontrol?’
ItcanbeinferredfromthefirstparagraphthatWhichofthefollowingstatementsisTRUEaboutsomedoctorsSomersquotesin
Thewordconservationhasathriftymeaning.Toconserveistosaveandprotect,toleavewhatweourselvesenjoyinsuchgoodc
IrelandiscalledtheEmeraldIsleforitsrichgreencountryside,butpoliticallyitisdividedintotwoparts:______.
Whiteneighborhoodsarebecomingdarkerin【1】______andmoreexpensive.【1】______Analystssaythatsoaringhousepricesandboom
随机试题
用于一般工程测量的水准仪型号是()。
在耐火陶瓷纤维内衬上施工不定形耐火材料时,其表面应做()处理。
在复杂的货运情况下,主运单和分运单上所示的收货人的意义有所不同。分运单上的收货人往往是货运代理,而主运单上的收货人则往往是真正的收货人。()
人民法院审理期货侵权纠纷和无效的期货交易合同纠纷案件,应当根据各方当事人( )确定民事责任。
(2008年)企业为高管人员配备汽车作为福利。则下列会计处理正确的是()。
下列各项中,属于数据分析工具可以应用的程序有()。
一位新入园的儿童问教师:“妈妈什么时候来接我?”教师最好回答:()
导致测量误差的来源()
按实验研究的目的划分,教育实验可以分为()。
某计算机系统由下图所示的部件构成,假定每个部件的干小时可靠度都为R,则该系统的千小时可靠度为______。
最新回复
(
0
)