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.
The Cold War encompassed a lengthy period of United States history, spanning from 1945 to 1991. Teachers and students generally focus on the events that transpired during the period, such as the red scare, the space race, the Cuban Missile Crisis, the Vietnam War, and the fall of the Berlin Wall, to name a few.