In the nature we have some potentials. What does it mean the potential ?
The difference in some circumstances (level of water or temperature).

See below

H is the difference of two water levels

If there are no difference anywhere, there are no changes, forces, etc.

If there is only difference of levels of water, there will be a big splash !
We recognize if we need to use the difference of level, we need some barrier to separate two levels.

See below - The job is made by the dam for two water levels.


I
n technics, physics and natural sciences we ask ourselves:
How to use the potential. Between two levels of water or between two objects with different temperatures.

Hence we know - the potential there is where are the difference and the barrier. If there were no barriers there will be there a big splash. Because the potential has simultaneosly the difference  and  the barrier to keep out the differences.

In physics or natural sciences generaly we ask ourselves:
How to use the potential. Between two levels of water or between two objects with different temperatures.

We need a regulation. A suitable regulation and  physical processes how tu use the differences between two levels of an energy.

We can return to the dam. There are two levels of water. The high level and low level. And the barrieer is a dam wall. Then we must make a hole to take out some water from the high level. Very simple regulation. After that we need some equipment how to obtain a work from a stream of water. This equpiment nowadays is a suitable turbine.



to be continued




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