Let's See How Far We've Come

We've come a long, long way.

Eartha is a 3-dimensional scale model of our earth with mountains and landforms in full 3D, that rotates and revolves, simulating the earth’s real movements. It measures 41.5 ft in diameter. Unveiled July 23, 1998 Eartha took two years to build and represents earth as it is seen from space. It rotates and revolves on a specially designed and built mechanized, cantilever arm. Its scale is 1:1,000,000, which works out to be one inch equaling nearly 16 miles. At this scale, California is three and a half feet tall! Eartha tilts at 23.5 degrees, just as the earth does. It revolves on a specially designed cantilever arm and rotates on an axis.

http://www.delorme.com/about/eartha.aspx