Understanding Pascal's Law
Pascal's law is one of the laws in physics that deals with liquid substances and the forces at their disposal. Studying Physics is incomplete if you don't know the sound of Pascal's law.
The sound of Pascal's law is:
Pressure applied to a liquid in a container, will be forwarded in all directions and equal
Pascal law was discovered by Blaise Pascal, a French scientist who lived in 1623-1662). Basically Blaise Pascal was a philosopher and theologian, but his hobbies in mathematics and physics, especially projective geometry, led him to become a world-famous scientist of all time thanks to his discoveries in the field of fluid mechanics related to pressure and force known as Pascal's Law.
Pascal's Law Formula
Pascal's Law is formulated with the term Pa (Pascal), a derivative unit for pressure. In accordance with its sound, then Pascal's Law is formulated as follows:
Pascal-Law-FormulasDescription:
F1 / F2 = Force on surfaces A or B (N)
A1 / A2 = Surface area A or B (m2)
D1 / D2 = Surface diameter A or B (m)
The most well-known application of pascal law is that of a hydraulic lifting device or widely known as a Hydraulic Jack. Any object that uses the term Hydraulic is usually an application of Pascal's law. For example, a hydraulic jack. Hydraulic jacks are often used for heavy lifting such as when having to change a car tire
History of Physics Concepts Discovered
Blaise Pascal (1623-1662) was born in Clermont Ferrand on 19 June 1623. In 1631 his family moved to Paris. Blaise Pascal is the son of Etienne Pascal, a scientist and mathematician born in Clermont. Etienne Pascal, also a royal adviser who was later appointed as president of the Court of Aids organization in the city of Clermont. Pascal's mother, Antoinette Bigure, died when Pascal was four years old shortly after giving him a younger sister, Jacqueline.
He has an older sister named, Gilberte. Pascal also conducted hydrodynamic and hydrostatic studies, the principles of hydraulic fluids. His inventions included hydraulic presses and syringes.
Age 18 years, his body is weak and paralysis of the upper limbs makes Pascal must stay in bed. You have to swallow enough food to stay alive, even though you always feel a headache. 24 years old, he and Jacqueline went to Paris for a medical examination with more sophisticated equipment. Apparently he was required to stay in the hospital. Nowadays many scientists come to visit those who are interested in the vacuum experiment that he is working on. Descartes came to discuss. End of the year, his physical health enabled him to continue working, testing the theory of emptiness.
He has an experimental replica in the form of a 31-inch (78.7 cm) tube filled with mercury that is positioned upside down in a mercury bowl. Pascal wanted to find out what power was keeping the mercury in the tube, and what filled the empty space at the top of the mercury tube. Does it contain: air? mercury vapor? nothingness?
At that time, most scientists thought that the free space saved by mercury was nothing more than a vacuum, and several events that were thought to be impossible by previous scientists were seen when the experiment was carried out. This is based on Ariestoteles thinking, that "creation" something that is "substance", whether visible or invisible, and "substance / substance" forever moving. Ariestoteles law is as follows: "Everything that moves, must be moved by something (Everything that is in motion must be moved by something)". Therefore scientists adhering to Ariestoteles stated, that the vacuum (suction power) is impossible. How can it be ? Then the evidence is shown:
The light passing through it is called "vacuum" in a glass tube.
Ariestoteles writes, everything moves, must be moved by something else. Therefore, there must be an invisible "something" to move the light through the glass tube, therefore there is no vacuum (suction or pressure) in the tube. Not in the glass tube or anywhere. Vacuum does not exist and something is impossible.
After conducting in-depth experiments on this vein, in 1647 Pascal issued a treatise on Experiences nouvelles touch video ("New Experiments with the Vacuum"), he explained in detail the basic rules, that the degree of variation of the liquid could be supported by air pressure. This gives a reason or proof, that there is indeed a vacuum in the column above the liquid barometer tube. And, Ariestoteles statement was broken by Pascal. Vacuum is there! Not something that is impossible. These evidences put Pascal in conflict with other scientists, especially the leading scientists before him, let alone the followers of Ariestoteles, including in conflict with Descartes.
Pascal's brain intelligence is beyond doubt, but from birth he is physically weak and vulnerable to illness. In 1661, his younger brother Jacqueline died. Pascal showed his condolences to his brother, Gilberte and to the sisters of Jacqueline's friends. One year later, Pascal's health condition worsened and refused all help that came or anything that could alleviate his illness.
He wants to die in the hospital - just like poor people (rich people always die at home), but that does not mean that is accomplished. On August 19, 1662, early morning, Pascal died after a long period of unconsciousness. The cause of Pascal's death is unknown. Some people call it because of tuberculosis; others call for metal poisoning or dyspepsia which weakens brain function. Pascal left the work entitled Pensees and Provincial Letters which had nothing to do with mathematics.