地球经度的确定

纬线是一系列的绕在地球表面的同心环,从赤道到两极,同心环的半径逐渐变小,而经线是通过两极的一些大小一样的大圈,它们交于地球的两个极点(图1)。在古时候,人们头脑就有了经线和纬线的概念,公元前140年左右,希腊人哈帕恰斯(图2)

世界时的由来

1858年11月24日,英国多塞特郡的时钟指在上午10时6分,该郡的法官判决一名诉讼人败诉。因为他没能在10时准时到庭。 两分钟后,那人到庭。他向法官指出,按照他家乡肯柏兰郡喀来耳镇火车站的时钟,他是准时到达,因此该案必须重审。 火车站与法庭出现的时间差异,促使英国来统一时间。1880年。

The Transformation of government economy management function on a sustainable development of the environment

The ever-changing and developing ecological environment determines the functions of government to be followed by changes in economic management. The pursuit of short-term economic growth, ignoring the social promotion, will lead to excessive consume the earth＇ s resources and deteriorate environment, which pose a serious threat for the overall development of the human. Reality shows that the traditional development model faced with severe challenges. Thus, to solve environmental problems and achieve sustainable human development has become starting point and destination for the world＇ s governments to consider all issues. Government, as the actors on the path of sustainable development, is imperative to change the government＇ s economic management functions to genuinely achieve economic, social and environmental comprehensive, coordinated and sustainable development. Implementation the strategy of sustainable development requires the Chinese government at least to adopt the ideology of overall and coordinated development in the head, follow the objective law and transfer the functions of government management of the economy on the basis of sustainable development.

"海上王国"——英国

过了英吉利海峡,我们就到了海岛国家--英国。英国的首都是伦敦,曾经因为工厂大量燃烧煤炭造成废气污杂,看起来就像常年下着大雾,当时人们把伦敦叫做"雾都"。