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
Any physical theory is always provisional, in the sense that it is only a hypothesis: you can never prove in. No matter how many
Any physical theory is always provisional, in the sense that it is only a hypothesis: you can never prove in. No matter how many
admin
2009-10-15
58
问题
Any physical theory is always provisional, in the sense that it is only a hypothesis: you can never prove in. No matter how many times the results of experiments agree with some theory, you can never be sure that the next time the result will not contradict the theory. On the other hand, you can disprove a theory by finding even a single observation that disagrees with the predictions of the theory. As philosopher of science Karl Popper has emphasized, a good theory is characterized by the fact that it makes a number of predictions that could in principle be disproved or falsified by observation. Each time new experiments are observed to agree with the predictions the theory survives, and our confidence in it is increased; but if ever a new observation is found to disagree, we have to abandon or modify the theory. At least that is what is supposed to happen, but you can always question the competence of the person who carried out the observation.
In practice, what often happens is that a new theory is devised that is really an extension of the previous theory. For example, very accurate observations of the planet Mercury revealed a small difference between its motion and the predictions of Newton’s theory of gravity. Einstein’s general theory of relativity predicted a slightly different motion from Newton’s theory. The fact that Einstein’s predictions matched what was seen, while Newton’s did not, was one of the crucial confirmations of the new theory. However, we still use Newton’s theory for all practical purposes because the difference between its predictions and those of general relativity is very small in the situations that we normally deal with. (Newton’s theory also has the great advantage that it is much simpler to work with than Einstein’s!)
选项
A、The History of Physical Science
B、Karl Popper’s Physical Theory
C、The Philosophy of Science
D、Einstein’s Theory of Science
答案
C
解析
文中没有综述自然科学的历史;卡尔.波珀说的话和爱因斯坦也只是作为例子说明本文的中心思想,因而A、B、D不对。全文表达了自然科学与理论和实践的辨证关系,因而答案应为C。
转载请注明原文地址:https://kaotiyun.com/show/Pn5d777K
本试题收录于:
公共英语二级笔试题库公共英语(PETS)分类
0
公共英语二级笔试
公共英语(PETS)
相关试题推荐
Accordingtothepassage,notmanyanimalshave.Anopposablethumbisathumbthatcan.
Whatdidthepersondoeveryday?
StoneHillMallisdifferentfromothermailsbecauseithas______.Itisimpliedinthepassagethatthewritertakesa(n)_
--Neverthoughttoseeyouhere.
Heranasfastashecouldandreachedthetrainstationwith______afewsecondstospare.
Isstaringatabig,whitewallduringclassmakingyoufeeldull?IfyouhaveeverwalkedpastmathteacherMr.Kelley’sroom,
Smokingisconsidereddangeroustothehealth.Ourtobacco-seller,Mr.Smith,therefore,alwaysaskedhiscustomers,iftheyare
Soseriously______intheaccidentthathewassenttohospitalatonce.
Whyaretheagesofonetofouradangeroustimeinyoungkids’life?
OnApril1st,acountrybuswasgoingalongawindingroadwhenitsloweddownandstopped.Thedriveranxiouslysteppedonthe
随机试题
低碳钢和低合金结构钢埋弧焊时,应该按照()的焊接线能量的要求来选定焊接工艺参数。
与mRNA中的ACG密码相对应的tRNA反密码子是
男,34岁,塌方事故导致骨盆、左股骨及胫腓骨多处骨折。接诊时首先应注意的并发症是
下列关于法律体系的表述,哪些说法是不正确的?
建设工程组织流水施工时,其特点之一是()。
股东从保护自身利益的角度出发,在确定股利分配政策时应考虑的因素有()。
在一般性货币政策工具中,主动权存商业银行而不在中央银行的工具是()。
汉代的三河地区是指()。
裴斯泰洛齐认为:“为人在世,可贵者在于发展,在于发展个人天赋的内在力量,使其经过锻炼,使人能尽其才,能在社会上达到他应有的地位。这就是教育的最终目的。”这句话反映了:
法律评价作用的对象是()
最新回复
(
0
)