The US was already geared for war, that's what the cold war was all about. However, US tactics and machines of war had to be modified somewhat for the Vietnam War.
Just as with most other instruments, it has many variations, of which the cup anemometer is the most common. radar: Meteorologists use radar to track and measure rainfall in areas. thermometer: Thermometers play an important role in predicting the weather by allowing meteorologists to measure the temperature.
Meteorologists measure changes in air pressure using barometers. High- and low-pressure weather systems move across the country, resulting in changes to barometric pressure. The position of atom and air molecules in the system mark the difference between high- and low-pressure weather systems.