evangelista torricelli

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Definition
  1. Proper noun:
    • Italian physicist and mathematician: Evangelista Torricelli was a 17th-century Italian scientist best known for his invention of the mercury barometer, a device used to measure atmospheric pressure.
    • Historical figure in science: His name is associated with foundational work in fluid dynamics and the study of vacuums, leading to the discovery of atmospheric pressure and the principle of the barometer.
Usage Examples
  • Proper noun:
    • Evangelista Torricelli is credited with inventing the barometer in 1643.
    • The experiment conducted by Evangelista Torricelli demonstrated the existence of a vacuum and the weight of air.
Advanced Usage
  • "Torricellian vacuum": The vacuum created above the mercury column in a barometer, named after his experiment.
    • The space in a mercury barometer is known as a Torricellian vacuum.
  • "Torricelli's law": A theorem in fluid dynamics describing the speed of fluid flowing out of an opening under the force of gravity.
    • Torricelli's law can be used to calculate the efflux velocity from a tank.
Variants and Related Words
  • Torricellian (adj): Pertaining to Evangelista Torricelli or his work.
    • The Torricellian experiment was a milestone in physics.
  • Barometer (n): The instrument he invented to measure atmospheric pressure.
  • Torr (n): A unit of pressure named in his honor, defined as 1/760 of a standard atmosphere.
Synonyms
  • Physicist: A scientist who studies physics.
  • Inventor: A person who creates a new device or process.
Related Terms and Concepts
  • Atmospheric pressure: The pressure exerted by the weight of the atmosphere, which his barometer measured.
  • Mercury column: The vertical tube of mercury used in his barometer design.
Noun
  1. Italian physicist who invented the mercury barometer (1608-1647)

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