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### Microscopic Physical Phenomena in Black Hole Cosmos Rotating at Light Speed

#### Abstract

By

**considering the ‘Hubble volume’ and replacing****the ‘Big Bang’ with an evolving primordial black hole rotating at light speed,****the authors have made various attempts to study the observed cosmological and microscopic physical phenomena at fundamental level in a unified approach.****In summary, high-temperature, high-angular velocity and small-sized primordial cosmic black hole of mass***Mc*=sqr(*e*/4p^{2}*e*which forever rotates at light speed gradually transforms into a low-temperature, low-angular-velocity and large-sized massive primordial cosmic black hole. For the primordial growing black hole universe, its ‘Schwarzschild radius’ at any given cosmic time can be considered as its characteristic possible minimum radius and ‘constant light speed rotation’ will give the maximum possible stability from collapsing. Based on the proposed relations and concepts of black hole cosmology it is clear that, at the present, the black hole universe is expanding in a decelerating mode at a very small rate in such a way that with current technology one cannot measure its deceleration rate. Based on the Mach’s principle, it is suggested that, within the ‘Hubble volume’, overall distribution of ‘Hubble mass’ will explain the observed microscopic physical phenomena like the strength of electromagnetic interaction, the characteristic size of the nucleus, the quantum constant of the Black body’s thermal emission, the quantum of revolving electron’s angular momentum, electron & proton rest masses, nuclear binding energy coefficients and so on.^{0}G)