Historical Development of the Measurement of Pressure

  • Galileo Galileo

    Galileo Galileo
    Galileo was born in 1564 in Florence Italy. He died in 1642 in Italy at the age of 77. He developed the suction pump that used air to draw water up a column. But he was confused at why there was a limit to what height the water could be raised.
  • Evange Torricelli

    Evange Torricelli
    He developed the First Barometer. He discovered that the reason that Galileo's pump would only reach a certain height is because of the Atmospheric Pressure. He also created a devise filled with mercury that would read the atmospheric Pressure (mmHg)
  • Otto von Guericke

    Otto von Guericke
    He created the Vacuum Pump which seal was so strong that 16 horses couldn't pull two metal hemispheres apart. He figured that it was the atmospheric p[ressure holding it together and not the vacuum.
  • Blasie Pascal

    Blasie Pascal
    He used a barometer and traveled up and down a mountain in france. He discovered that atmospheric pressuse decreased as he went up the mountain and increased as he went down the mountain. Later he had the unit of pressure "Pascal" named after him.
  • Christiann Huygens

    Christiann Huygens
    He created the Manometer, which uses a liquid to measure pressure.
  • John Dalton

    John Dalton
    He stated that the total pressure of a mixture of gases is equal to the combined pressure of the two mixtures of gases. The pressure of each gas in the mixture is called it's partial pressure.
  • Joseph Louis Gay-Lussac

    Joseph Louis Gay-Lussac
    He discovered that water is made up of two parts Hydrogen and one part Oxygen.
  • Amadeo Avogadro

    Amadeo Avogadro
    He concluded that the pressure in a container is proportional to the number of particles in the container. this can be showen by blowing up a baloon or a tire.