Filter (OIL )- A device which removes solids from a fluid. Flow Meter - A testing device which gauges either flow rate, total flow, or both. Flow Rate - The volume of fluid passing a point in a given time. Fluid Power - Energy transmitted and controlled through use of a pressurized fluid. Force - A push or pull acting upon a body.
Conflicts of national interest caused the World War II alliance between the United States and the Soviet Union to be replaced by a Cold War that lasted 45 years. Initially a dispute over the future of Europe, it grew to include confrontations around the world.
History of U.S. foreign policy - Cold War: 1947â91. 1  From the late 1940s until 1991, world affairs were dominated by the Cold War, in which the U.S. and its allies faced the Soviet Union and its allies.