Blaise Pascal was a French physicist. Around 1953, Pascal formulated Pascal's law. The pressure exerted on a liquid in a closed space is transmitted equally in all directions.
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#pascalslaw
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LearningTranscript
00:00Hi colleagues, are you still enthusiastic about learning static fluid physics?
00:06Still enthusiastic huh?
00:09This time, we will discuss Pascal's law.
00:13What is Pascal's law?
00:15Let's read the written statement of Pascal's law first.
00:19That the pressure exerted on a liquid in a closed space is transmitted equally in all directions.
00:28Understand this definition correctly.
00:31There are two important sentences there.
00:34The first important sentence is the pressure given.
00:39This means that this is additional pressure, not absolute pressure.
00:47The second important sentence is of the same magnitude.
00:51The additional pressure value is the same.
00:57To understand this concept visually, we have a spherical bottle.
01:04If you look at the front, this bottle is similar to a perfume bottle.
01:11Well, this bottle is filled to the brim with water.
01:17There is a stopper on the bottle cap.
01:22So in this bottle there is no air cavity at all.
01:26This is understandable.
01:31Now, the bottle stopper is pushed down by an external force.
01:37Because the pushing force is perpendicular to the surface of the bottle blockage,
01:43the force exerts pressure.
01:48This is added pressure.
01:53So the additional stress is caused by external processes.
01:59This pressure will be transmitted into the fluid to the same extent.
02:04Let's assume the pressure value is P1.
02:09The value of the additional pressure is the same.
02:13Even though at the surface, the hydrostatic pressure is not the same,
02:18the additional value of the pressure is the same.
02:23If we install a pressure gauge here, here, and here,
02:30so the hydrostatic pressure value at that point is different.
02:35This is true, yes.
02:38When the bottle is blocked, the water in the bottle is trapped.
02:43Each point will receive the same additional pressure.
02:47The hydrostatic pressure value at each point will get the same addition.
02:54This is what is meant by Pascal law.
02:59We will discuss this in more detail in the next series.