资讯

In 1995 the International Atomic Energy Agency published a hard copy map of World Distribution of Uranium Deposits, in collaboration with the Geological Survey of Canada. This second edition of the ...
Flat, two-dimensional maps can look different because the world is actually curved. This means map-makers need to make compromises when drawing maps. These different map representations are called ...
In 1995 the International Atomic Energy Agency published a hard copy map of World Distribution of Uranium Deposits, in collaboration with the Geological Survey of Canada. The map was based upon an ...
Three thousand years ago, our ancestors began a long experiment in figuring out how they fit into the world, by inventing a bold new tool: the map. One of the oldest surviving maps is, ironically ...
They have to compromise. Map makers use map projections to transform the Earth onto a flat surface. One of the most popular world map projections is known as the Mercator Projection. You’ll have ...
Less than a month after the September 11 terrorist attacks on the United States, U.S. troops—with support from British, Canadian, French, German and Australian forces—invaded Afghanistan to ...