Norwich University
Seven Man-Made Engineering Wonders of the Ancient World
Imagine precisely cutting and then moving a 120 ton boulder more than two miles without mechanical cutting tolls, skid loaders, or hydraulic cranes. Imagine carving a stone figure that includes a drainage system that permits rainwater to...
Institute for Geophysics
Understanding Maps of Earth
Here is your go-to student resource on primary geography concepts, including facts about the surface of the earth and its hemispheres, latitude and longitude, globes, types of maps, and identifying continents and oceans.