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From "Father of hydraulic presses" Pascal to junior high school physics "liquid pressure"

From "Father of hydraulic presses" Pascal to junior high school physics "liquid pressure"

Bryce. pascal

In 1653, Pascal discovered and proposed the "Pascal's Law", based on which Pascal invented the hydraulic press, hence the name "Father of the Hydraulic Press".

From "Father of hydraulic presses" Pascal to junior high school physics "liquid pressure"

Hydraulic press

Pascal's early "crack barrel experiment" proved that "in the same liquid, the deeper the pressure, the greater the pressure".

There are three test centers for junior high school physics liquid pressure:

One. Liquid pressure characteristics.

1. The liquid has a pressure on the bottom and side walls of the container.

2. There is pressure inside the liquid in all directions. The same depth of the same liquid, with equal pressure in all directions.

3. In the same kind of liquid, the deeper the depth, the greater the pressure.

4. At the same depth, the greater the density of the liquid, the greater the pressure.

Two. The liquid pressure is strong and small.

1. The strong pressure of the liquid is equal to the product of the density of the liquid, the constant of gravity, and the depth of the liquid.

P=ρgh

Three. Connector

1. Connector: A container with a bottom connection and an opening at the top. The Three Gorges Locks are the largest artificial connector in the world.

2. Characteristics of the connector: When the same liquid is installed inside and does not flow, the liquid level is flat.

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