Articles by keywords "reference frame"

The proper mass of the universe

Theoretical physics
  • Year: 2021
  • Volume: 14
  • Issue: 1
  • 47
  • 4243
  • Pages: 147-154

Quantization of the energy density in a closed universe

Theoretical physics
  • Year: 2018
  • Volume: 11
  • Issue: 1
  • 30
  • 5972
  • Pages: 147-156