Torricelli, Evangelista


Italian physicist, mathematician, and inventor of the barometer.

In 1644 he performed the famous barometric experiment that enabled him to demonstrate the existence of atmospheric pressure.

Torricelli's only published work was Opera geometrica, 1644, which included work on motion (or mechanics). Torricelli was also the most gifted lens grinder of his age, who made many telescopes and who developed a microscope using tiny drops of crystal the size of a grain of millet.

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