Broadcast: Jan 22, 2003 By Marilyn Christiano VOICE ONE: This is Steve Ember. VOICE TWO: And this is Sarah Long with the VOA Special English program, Explorations. Today we tell about a scientist who

发表于:2018-12-07 / 阅读(53) / 评论(0) 分类 VOA2003(上)-科技导航

Pre-Listening Vocabulary pi (): the circumference of a circle divided by its diameter ratio: the relationship between two amounts circumference: the distance around an edge of a circular shape diameter: the line across the centre of a circle coincide

发表于:2018-12-28 / 阅读(41) / 评论(0) 分类 趣谈英语

Albert Einstein was a German-born physicist, although most people probably know him as the most intelligent person who ever lived. His name has become part of many languages when we want to say someone is a genius, as in the phrase, Shes a real Einst

发表于:2019-01-11 / 阅读(45) / 评论(0) 分类 世界名人简介

JUDY WOODRUFF: But, first, this week marks the 100th anniversary of the publication of Albert Einstein's greatest work, a series of papers laying out the general theory of relativity. Gwen has a look at how it changed our understanding of the cosmos

发表于:2019-01-27 / 阅读(38) / 评论(0) 分类 PBS访谈教育系列

EXPLORATIONS – Albert Einstein By Marilyn Christiano Broadcast: Wednesday, February 23, 2005 VOICE ONE: This is Steve Ember. VOICE TWO: And this is Sarah Long with the VOA Special English program, E

发表于:2019-01-28 / 阅读(68) / 评论(0) 分类 Explorations

In 1907, or so it has sometimes been written, Albert Einstein saw a workman fall off a roof and began to think about gravity. 1907年,反正有时候书上是这么写的,有个工人从房顶上掉了下来,爱因斯坦就开始考虑引力的问

发表于:2019-02-17 / 阅读(27) / 评论(0) 分类 万物简史