-
Galileo Galilei
Developed the suction pump at the age of 66. He used air to draw underground water up a column.
He was born February 15, 1564 -
Evangelista Torricelli
At the age of 35, he developed the first barometer. Determined that the limit to the height Glileo's pump could draw water was due to atmospheric pressure. Invented a closed-end tube
He was born October 15, 1608 -
Otto von Guericke
At the age of 41, he made a pump that could create a vacuum and reasoned the hemisphere were hel together by the mechanical force of atmospheric pressure rather than the vacuum.
Also demonstrated the force of air pressure with dramatic experiments
He was born Nov. 20, 1602 -
Blaise Pascal
At the age of 25, he discovered that the pressure of the atmosphere increased as he moved down the mountain with barometer.
He was born June 19, 1623 -
Christiaan Huygems
At the age of 40, he developed the manometer to study the elastic forces in gases
He was born on April 14, 1629 -
John Dalton
At the age of 35, he stated that in a mixture of gases the total pressure is equal to the sum of the pressure of each gas and the concept of partial pressure
Develped the concept of the absorption of gases by water and other liquids
He was born on September 6th, 1766 -
Joseph Louis Gay-Lussac
Gay Lussac's law states that the pressure of a gas of fixed mass and fixed volume is directly proportional to the gas' absolute temperature. He achieved this law at the age of 30s
Tried hot air balloon experiment
He was born on Dec. 6, 1778 and died in 1850 -
Amadeo Avogadro
Avogadro's Law states that the relationship between the masses of the same volume of different gases (at the same temperature and pressure) corresponds to the relationship between their respective molecular weights. Hence, the relative molecular mass of a gas can be calculated from the mass of sample of known volume. He achevied this at the age of 35s
He was born on Aug. 9th, 1776
