The United States of America, commonly known as the United States or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, 326 Indian reservations, and some minor possessions. Read More
The Spallation Neutron Source, or SNS, in Dongguan works by using neutron beams which are able to penetrate materials with ease and provide a clear view of the inside structure. ...
The United States has issued a travel advisory to its citizens to reconsider travel in high-risk areas in Pakistan due to terrorism and sectarian violence. ...