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Galileo Develops a pump
Galileo obtains the patent for a machine to pump water from a river for the irrigation of land. The heart of the pump was a syringe. Galileo found that 10 meters was the limit to which the water would rise in the suction pump, but had no explanation for this phenomenon. Scientists were then devoted to find the cause for this. -
Evangelista Torricelli
He developed the first barometer. He continued galileo's work by determining the limit to the height was due to atmospheric pressure.he inverted a closed end tibe into a pan of mercury at sea level. -
Otto von Guericke
He made a pump that could create a vacuum so strong a team of sixteen horse couldn't pull two metal hemispheres apart. He reasoned that the hemispheres were held together by the mechanical force of atmospheric pressure rather than the vacuum. -
Blaise Pascal
Blaise used torricellis barometer and traveled up and down a mountain.He disovered that the pressure increased as he moved down the mountain. -
Christiaan Huygens
developed the first manometer to study elastic forces in gases. -
John Dalton
He stated that in a mixture of gasesthe total pressure is equal to the sum of the pressure of each gas, if the container were alone. Another way of stating this relationship is the total pressure of gases in a container is the sum of the pressure of each gas. -
Joseph Louis Gay-Lussac
observed the law of combinig volumes. He noticed that, for example two volumes of hydrogen combined with one volume of oxygen form two volumes of water. -
Amadeo Avogardo
after studying the work of Gay-Lussac and others, published what is known as Avogadros hypothesis in 1811. His hypothesis stated that a sample of any gas at thhe same temperature and pressure will contain the same number of particles. His hypothesis also suggest that the more gas particles, the graeter the pressure.
