Mathematics:Shape of the World
Since our species first walk on the planet， we've been exploring the surface. We invented mathematics to help us. In fact， geometry means measuring the earth. For thousands of years， we've used mathematics to measuring and map the planet. In fact， we will be lost without it. We have developed mathematics to explore the earth and to map and navigate on the surface.
- Added：2006
- Country：America
- Duration：60
- Time of update：2011/8/15 15:06:14