科学技术日新月异,当你了解了什么是“信息高速公路”,刚刚知道了“知识经济”时,“数字地球”又迎面而来。什么是“数字地球”呢? “数字地球”是美国副总统戈尔于1998年初在加利福尼亚科学中心所作的《数字地球——认识21世纪我们这颗星球》的讲演中提出的新慨念。戈尔说,现在一方面需要大量有关地球的各种信息,另一方面这些信息又被闲置起来慢 With science and technology changing with each passing day, when you understand what the “information superhighway” is and when you have just known about the “knowledge economy,” the “digital earth” is coming again. What is “Digital Earth”? Digital Earth was the new idea presented by Vice President Al Gore at the California Science Center in early 1998 in his speech entitled “Digital Earth - Knowing Our Planet in the 21st Century.” Gore said that on the one hand, it needs a lot of information about the Earth, on the other hand, it is idle and slow.