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Describe the Lord Kelvin statement?

Difficulty: Medium

Kelvin statement:

When you can measure what you are speaking about and express it in numbers, you know something about it. When you cannot measure what you are speaking about or you cannot express it in numbers, your knowledge is of a meager and unsatisfactory kind.

 

FOR YOUR INFORMATION

Andromeda:

                Andromeda is one of the billions of galaxies in the known universe.

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