资讯

Seismic Map of N. America Reveals Continent Under Stress. George Dvorsky, Gizmodo April 27, 2020. AP Photo/U.S. Geological Survey. Scientists have compiled the most comprehensive map yet of tectonic ...
To create the map, the researchers amassed over 2,000 stress orientations taken across North America, of which 300 are brand new. These measurements were taken from boreholes—long, narrow shafts ...
The map, printed in 1507, measured about 1.4m by 2.4m, a size that matched its grand ambition to portray the world in its entirety. And indeed, it did depict more of the world than ever before.
SOUTH AMERICA: On the Map. 7 minute read. ... shores of the Pacific,” and the haughty citadel from which the Spanish Viceroy proclaimed his rule over “the entire Continent of South America.” ...
This collection of Funky Facts from Go Jetters focuses on North America, a continent found entirely within the northern hemisphere. In these clips, we explore iconic landmarks within the United ...