All Questions
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The gravitational field of all the distant mass exactly cancels the positive mass-energy in the universe. Why do they think so? [duplicate]
It is often said that the gravitational field has negative energy, and that this negative gravitational energy of all the distant mass exactly cancels the positive mass-energy in the universe.
Why do ...
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1
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Zero-energy universe - What is nothing?
I am a layman, so excuse me in advance for the stupidity of my questions, and I hope you can answer them in a way that I can understand.
I have read, here and there, that the Universe might have a ...
4
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2
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Attractive gravity has negative energy, what about repulsive gravity in the inflation phase?
Alan Guth's cosmic inflation theory posits that about 10^-38 second before the Big Bang which led to our particular universe, a tiny patch of space doubled in size more than 100 times, from sub-atomic ...
2
votes
1
answer
519
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Use of wormholes to violate conservation of energy
The change in energy of an object as it moves from point A in space to point B in space is the integral of the net force it experiences over it's path of travel. If an object returns to it's starting ...
1
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1
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924
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Is dark energy converted to gravitational potential energy?
Dark Energy is basically doing work against gravity to accelerate the expansion of universe. So, for time-translational symmetry to be hold, dark energy must be converted to gravitational potential ...
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