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World War II had a profound impact on the development of science and technology in the United States. Before World War II, the federal government basically did not assume responsibility for supporting scientific development. During the war, the federal government and science formed a new cooperative relationship.
The history of science and technology (HST) is a field of history that examines the development of the understanding of the natural world (science) and humans' ability to manipulate it at different points in time. This academic discipline also examines the cultural, economic, and political context and impacts of scientific practices; it ...
The historian William H. McNeill argued that the United States saw itself as "one of a family of peoples and nations" making a history apart from the European civilization of their colonization. [4] The United States Constitution is an expression of Americans diverging from colonial rule, according to this viewpoint.
Unlike the loans in World War I, the United States made large-scale grants of military and economic aid to the Allies through Lend-Lease. Industries greatly expanded to produce war materials. The United States officially entered World War II against Germany, Japan, and Italy in December 1941, following the Japanese surprise attack on Pearl Harbor.
Throughout the 1920s and 1930s, industrial, university, and military research continued to realize gains in the power, maneuverability, and reliability of airplanes: Charles Lindbergh completed a solo non-stop transatlantic flight in 1927, Wiley Post flew around the world in nine days in 1931, and Howard Hughes shattered flight airspeed records ...
In historiography, historical revisionism is the reinterpretation of a historical account. [1] It usually involves challenging the orthodox (established, accepted or traditional) scholarly views or narratives regarding a historical event, timespan, or phenomenon by introducing contrary evidence or reinterpreting the motivations and decisions of the people involved.
Fluid friction describes the friction between layers of a viscous fluid that are moving relative to each other. [7] [8] Lubricated friction is a case of fluid friction where a lubricant fluid separates two solid surfaces. [9] [10] [11] Skin friction is a component of drag, the force resisting the motion of a fluid across the surface of a body.
In June 2015, the exam was changed to AP World History: Modern. [1] The new exam only includes material from 1250 C.E. onwards. Students first took the new course in the 2019–20 school year. The College Board announced the development of AP World History: Ancient, which focuses exclusively on earlier periods, including prehistory. [2]