Blaise Pascal, a renowned physicist and mathematician, developed Pascal's Law by conducting experiments with various liquids and devices. His discovery showed that enclosed fluids transmit pressure equally in all directions. This principle led to the creation of inventions such as the syringe, hydraulic press, and hydraulic brakes, demonstrating the practical applications of Pascal's work.
AIR: Exerts Pressure
Blaise Pascal (1623 - 1662)Instrument to measure weight of air height of mountains. NARRATOR: Until now, we focused on the work done in Italy during the early and mid-17th centuries. However, by then, French scientists were also very active. And it was the French infant prodigy, Mr. Blaise Pascal, who finally proved, that air has weight. …
AIR: Has Weight
Evangelista Torricelli (1608 – 1647)"We live submerged at the bottom of an ocean of elementary air, which is known by incontestable experiments to have weight."Air has weight and exerts pressure and we can measure it NARRATOR: By now, it had been established that a vacuum existed above the piston in the water pump. Still, the question …
AIR: Vacuum Exists!!
Gasparo Berti and Raffaello Magiotti conducted the first artificial vacuum experiment, which sparked debate in Europe. Their innovative experiment using an 11m lead tube demonstrated the existence of a vacuum, despite opposition from Aristotelians. Later, Torricelli's fresh perspective revolutionized the understanding of air and weather prediction.
AIR: Pump Problem!
In the early 17th century, the Grand Duke of Tuscany aimed to build a 50-foot-high fountain, but encountered difficulties due to limitations in lifting water. Scientist Giovanni Baliani and Galileo investigated similar problems with suction pumps and siphons, leading to speculations about the existence of a vacuum and challenging the Church's beliefs.
AIR: Galileo’s Water Pump
In the story "Galileo's Water Pump," Galileo discusses the origins and functionality of his invention that later became known as Galileo's Water Pump. He explains that the pump works by creating a temporary vacuum above the liquid and lifting the water from the underground source. Despite his initial belief in Aristotle's idea that nature abhors a vacuum, he later encountered a problem that made him doubt this theory.