For what discovery is Evangelista Torricelli famous?

This question was previously asked in
SSC CGL 2022 Tier-I Official Paper (Held On : 03 Dec 2022 Shift 3)
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  1. Invention of spring balance
  2. Invention of piezometer 
  3. Invention of mercury barometer 
  4. Invention of vacuum gauge 

Answer (Detailed Solution Below)

Option 3 : Invention of mercury barometer 
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Detailed Solution

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The correct answer is the Invention of the mercury barometer.

Key Points

Evangelista Torricelli

  • He was born on 15 October 1608.
  • He was an Italian physicist and mathematician, and a student of Galileo.
  • He is best known for his invention of the mercury barometer but is also known for his advances in optics and work on the method of indivisibles. 
  • The Torr is named after him.
  • He died on 25 October 1647.
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