Mass of Universe: Planck Time, Planck Mass & 65 kg

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SUMMARY

The total mass of the universe at Planck time after the Big Bang is not equal to the Planck mass. Instead, it is derived from the conversion of energy into mass, a process that has been ongoing since the Big Bang. The observable universe's energy content was fixed and finite at that time, leading to a complex relationship between energy and mass. The discussion emphasizes that while individual masses, such as a human mass of 65 kg, originate from this energy-mass conversion, the total mass of the universe is significantly larger and not confined to the Planck mass.

PREREQUISITES
  • Understanding of Planck time and Planck mass concepts
  • Basic knowledge of the Big Bang theory
  • Familiarity with mass-energy equivalence (E=mc²)
  • Awareness of the observable universe's energy content
NEXT STEPS
  • Research the implications of Planck mass in quantum gravity theories
  • Explore the relationship between energy and mass in cosmology
  • Study the processes of mass-energy conversion in the early universe
  • Investigate the current understanding of the observable universe's total mass
USEFUL FOR

Astronomers, physicists, cosmologists, and anyone interested in the fundamental concepts of the universe's mass and energy dynamics.

big_bounce
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Hello PF members
How much did the total mass of universe at Planck time after big bang ? Was it equal Planck mass ?
If yes , My mass almost 65 kg come from where and how ?
 
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The total energy content of the observable universe was fixed and finite at the time of the big bang. Some of that energy was converted to mass, some not. The conversion process works both ways and continues to this day. Rest assured it has always been enormous.
 

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