Parrot measured the elevation at using a mercury barometer. The mercury in the Mercury Barometer keeps on rising intensely from March till June. In 1643, Evangelista Torricelli invents the mercury barometer. In 1643, Evangelista Torricelli invented the mercury barometer. The mercury barometer stood lower the higher one went. This experiment resulted in the first mercury barometer and created a scientific sensation in Europe. Torricelli attracted considerable attention when he demonstrated the first mercury barometer to the general public. A mercury barometer is one of the classic uses of static pressure head. The , encased in a finely detailed clock body, is a Fortin mercury barometer. Evangelista Torricelli's mercury barometer of 1643 and Blaise Pascal's experiments both demonstrated a partial vacuum.