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
31
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.
According to the passage, which of the following phenomena did Einstein describe in his General Theory of Relativity, that was not explained by Newton’s theory?
选项
A、A solution to the Michelson-Morley experiment.
B、The motions of distant planets.
C、How light could travel in a vacuum.
D、The nature of gravity.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/qnlO777K
0
专业英语八级
相关试题推荐
ThisiswhatAfricahasinabundance,space,almost12millionsquaremilesofdesert,savanna,coastline,andpeople,700milli
A、Therewasachaoscausedbythefrontpeoplerunningbackwardssotheycouldn’tgofast.B、Thebridgewasquitehighsoit’sd
WhenEnochPowell,aConservativeMP,gaveaspeechin1968callingforanendtoimmigration,hereceivedsomanylettersofsu
A、The41-year-oldmanclaimedtoberesponsibleforlastMonday’sexplosioninNairobi.B、Themanreleasedthenameandonepho
InBolivia,lifeisslowlyreturningtonormalafteralmostamonthofdemonstrations.【C1】______—frompoorpeasantfarmerstomi
A、AKoreanAmericanboy.B、A16-yearoldgirlinNewYork.C、AVietnameseyoungman.D、AJapanesecollegestudent.A
TheNationalAssociationfortheAdvancementofColoredPeoplemovedquicklyinApriltocancelplanstobestowalifetimeachie
Nowadayswiththedevelopmentofeconomy,existingcitiesaregrowingbiggerandnewcitiesareappearing.Whatdoyouthinkis
Etiquette1Insixteenth-centuryItalyandeighteenth-centuryFrance,waningprosperityandincreasingsocialunrestledthe
Insemantics,______dealswiththerelationshipbetweenthelinguisticelementsandthenon-linguisticworldofexperience.
随机试题
试述不同细菌感染的脓液特点。
莱姆病持续感染期的临床表现特点是
甲状腺功能减退症血脂紊乱的特点是()
为进一步推进利率市场化,完善金融市场基准利率体系,指导信贷市场产品定价,2013年10月25日,()集中报价和发布机制正式运行。
世界上第一次大规模的、有组织的、纯粹以商业为目的的旅游活动出现于()年。
阐述早期的四种迁移理论的基本观点。
软科学是综合运用自然科学、社会科学和哲学的理论和方法,对复杂的社会课题(人、自然、社会经济、科学技术之间相互作用的政策课题和社会问题)进行预测、规划、管理和评价,从整体上探求最优化的解决方案和决策的科学。根据上述定义,下列属于软科学的是(
Forthispart,youareallowed30minutestowriteacompositionentitledStudyingOverseas.Youshouldwriteatleast150words
A、Highschoolstudentsareusingelectronicformstoapplyforcolleges.B、Highschoolstudentsaresendingmoreapplicationsco
A、Familyviolence.B、TheGreatDepression.C、Herfather’sdisloyalty.D、Hermother’sbadtemper.B本题是因果关系题。文中提到,她的父母在大萧条时期要养育六个孩
最新回复
(
0
)