High Quality Content by WIKIPEDIA articles! Torricelli's equation is an equation created by Evangelista Torricelli to find the final velocity of an object moving with a constant acceleration without having a known time interval. Evangelista Torricelli (October 15, 1608 October 25, 1647) was an Italian physicist and mathematician, best known for his invention of the barometer.Evangelista Torricelli was born in Faenza, then part of the Papal States. He was left fatherles at an early age and educated under the care of his uncle, a Camaldolese monk, who first entered young Torricelli into a Jesuit College in 1624 to study mathematics and philosophy until 1626, when he sent Torricelli to Rome in 1627 to study science under the Benedictine Benedetto Castelli, professor of mathematics at the Collegio della Sapienza in Pisa.