Describes the scientific discoveries and political circumstances behind the decision to develop atomic weapons; recounts the history of the Manhattan Project; and examines the influence of nuclear wea
"Illegal immigration remains one of the most controversial and divisive issues today. There is strong disagreement among Americans about the effects on the nation. both Republicans and Democrats recog
Looks at the latest innovations in transportation technology, including electric vehicles, self-driving cars, high-speed trains, hydrogen- and wind-powered marine vehicles, drones, and the possibility
