Brans–Dicke theory | Wikipedia audio article
Channel: Shishir Kumar Sahu
Date: 2018-11-20

This is an audio version of the Wikipedia Article:
Brans–Dicke theory

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SUMMARY
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In theoretical physics, the Brans–Dicke theory of gravitation (sometimes called the Jordan–Brans–Dicke theory) is a theoretical framework to explain gravitation. It is a competitor of Einstein's theory of general relativity. It is an example of a scalar–tensor theory, a gravitational theory in which the gravitational interaction is mediated by a scalar field as well as the tensor field of general relativity. The gravitational constant G is not presumed to be constant but instead 1/G is replaced by a scalar field 
  
    
      
        ϕ
      
    
    {\displaystyle \phi }
   which can vary from place to place and with time.
The theory was developed in 1961 by Robert H. Dicke and Carl H. Brans building upon, among others, the earlier 1959 work of Pascual Jordan. At present, both Brans–Dicke theory and general relativity are generally held to be in agreement with observation. Brans–Dicke theory represents a minority viewpoint in physics.