"We live at the bottom of an ocean of the air element, which, through an unquestionable experience, is shown to have weight." These words were pronounced by the Italian physicist and mathematician evangelist Torricelli, after the manufacture of the first barometer in the 17th century.
Evangelist Torricelli experimented with layered glass tubes and various liquids of different densities until he used Mercury, with which he managed to balance atmospheric pressure. Torricelli's experiment reac
