Barometers

For many of us, the first topic of conversation is the weather. However, in actual fact the barometer was originally intended for measuring the weight of the air and not indicating the weather. In the early 17th century the barometer was the preserve of Scientists concerned with measuring atmospheric pressure. It was only later that the barometer assumed its role as a weather glass, once Torricelli recognised a correlation between alterations in the weight of the air and changes in the weather.