教室首页                   Science                   百科知识


The collective body of ideas about the natural world are arrived at through observing, thinking, experimenting and validating.  It is what is known as science.  Early scientists were primarily observers of natural happenings.  Galileo was the pioneer of modern science, who set up experiments and was active participant.  The technology of modern science changes rapidly. But today's methods of observations, descriptions and analysis are very much based on those device by Galileo in the 1500's.

本视频素材来自Compton's Interactive Encyclopedia

视频下载

           本视频仅供内部教学使用,不得再在互联网上转载。
           如果您在此下载使用了本视频,请在事后删除。

本视频的解说词文稿和听力测试题的版权归本站长所有,
未经授权,请勿转载。点击去看详细版权信息


  Back
 

高中英语多媒体教室 编译制作范文林 版权归作者所有 未经授权 请勿转载 
Copyright © www.fancyenglish.com   All Rights Reserved.