A history of weather forecasting tools
650 B.C. Clouds
Babylonians were first to glean short-term weather changes in fluffy masses.
The earliest design: weighing sheep’s wool, which gets heavier in humidity.
Galileo realized that substances expand and contract with temperature change.
Tubes of mercury showed atmospheric pressure shifts to predict weather.
1860s WeatherObserving Stations
Coordinated measurements netted better forecasts.
Balloon-borne instruments began to read high-altitude conditions.
1960 Weather Satellite
TIROS-1 sent the first photos of changing cloud patterns from space.