EncyclopediaTorricelli, EvangelistaTorricelli, Evangelista (āvänjālē'stä tōr-rēchel'lē) [key], 1608–47, Italian physicist and mathematician. He was Galileo's secretary (1641–42) and his successor as professor of philosophy and mathematics at Florence. He invented the barometer (1643), called the Torricelli tube, and a microscope, and he improved the telescope. The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved. More on Evangelista Torricelli from Fact Monster:
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