# Opinions on **Pressure**

Here you have a list of opinions about Pressure and you can also give us your opinion about it.You will see other people's opinions about Pressure and you will find out what the others say about it.

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**Pressure** (symbol: *p* or *P*) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled *gage* pressure) is the pressure relative to the local atmospheric or ambient pressure.

Various units are used to express pressure. Some of these derive from a unit of force divided by a unit of area; the SI unit of pressure, the pascal (Pa), for example, is one newton per square metre; similarly, the pound-force per square inch (psi) is the traditional unit of pressure in the imperial and US customary systems. Pressure may also be expressed in terms of standard atmospheric pressure; the atmosphere (atm) is equal to this pressure and the torr is defined as ⁄_{760} of this. Manometric units such as the centimetre of water, millimetre of mercury and inch of mercury are used to express pressures in terms of the height of column of a particular fluid in a manometer.

In the image below, you can see a graph with the evolution of the times that people look for Pressure. And below it, you can see how many pieces of news have been created about Pressure in the last years.

Thanks to this graph, we can see the interest Pressure has and the evolution of its popularity.

# What do you think of Pressure?

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