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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.
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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.
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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.
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Blaise used torricellis barometer and traveled up and down a mountain.He disovered that the pressure increased as he moved down the mountain.
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developed the first manometer to study elastic forces in gases.
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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.
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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.
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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.
