What is the Measurement for G, ħ & c?

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SUMMARY

The constants G (gravitational constant), ħ (reduced Planck constant), and c (speed of light) are primarily defined rather than measured. Specifically, c is universally recognized as a defined value, while G and ħ can be defined as 1 in certain unit systems. For comprehensive understanding, users are encouraged to refer to Wikipedia articles on the speed of light, gravitational constant, and Planck constant for historical context and measurement methodologies.

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  • Understanding of fundamental physics concepts
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  • Basic knowledge of scientific constants
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Garrulo
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How are G, ħ & c measured??
 
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Last edited:
Wikipedia and Google are better starting points for basic question like this.
 

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