In 1643, Italian physicist Evangelista Torricelli used mercury to measure the hidden pressure of Earth’s atmosphere |
[ad_1] For most of human history, the atmosphere was something felt rather than measured. People knew that air moved, pushed against sails and filled the lungs, but its physical weight was harder to demonstrate. In 17th-century Italy, that began to change. Evangelista Torricelli, a mathematician and physicist from Faenza, was working on a problem that…
