Gravity as space-time curvature?

In summary, the conversation discusses the possibility of mini or micro black holes existing and their potential effects on gravity. There is no data or evidence to support this idea, but it is an interesting thought experiment. The conversation also touches on the current understanding of gravity and its relation to mass.
  • #1
Anthony DiGrazia
Hi there. I was wondering that if mini or micro black holes could theoretically exist, and if not all black holes need to "devour' matter, then could it be possible that all things we perceive to have gravity could possibly be caused by a mini or micro black hole at the center of massive objects such as the sun or planets? I was wondering because it just seems strange that so many cosmological bodies orbit or revolve around other even more massive bodies much like the galaxies revolve around a supermassive black hole. We still have yet to really define what gravity is and there seems to be no explanation other than a correlation between mass and gravity, but what if gravity is only determined by the mass of these theoretical micro black holes? Could it be that everything may have cooled and coalesced around these micro black holes and thus we perceive it as mass and space-time curvature dictating gravity and its behavior? Just want to hear your thoughts because I have no data or numbers to support this idea, but it is a neat thought experiment.
 
Astronomy news on Phys.org

1. How does gravity cause space-time curvature?

Gravity is caused by the presence of mass or energy in an object. This mass or energy creates a "dip" in the fabric of space-time, much like a heavy object placed on a trampoline causes a dip in the surface. This dip in space-time is what we experience as gravity.

2. How does space-time curvature affect objects?

Space-time curvature affects objects by causing them to follow a curved path towards the source of gravity. The more massive an object is, the more it curves the space-time around it, and the stronger the gravitational force it exerts on other objects.

3. Is the concept of space-time curvature proven?

Yes, the concept of space-time curvature is supported by experimental evidence and has been confirmed through numerous experiments and observations. One of the most famous examples is the bending of light by massive objects, such as stars, which was predicted by Einstein's theory of general relativity.

4. Can space-time curvature explain the motion of planets in our solar system?

Yes, space-time curvature can explain the motion of planets in our solar system. According to general relativity, the sun's mass creates a dip in the space-time fabric, which causes the planets to follow an elliptical path around it. This explains why the planets do not fly off into space but are instead held in orbit around the sun.

5. How does the concept of space-time curvature differ from Newton's theory of gravity?

The concept of space-time curvature differs from Newton's theory of gravity in that it provides a more complete and accurate explanation of the nature of gravity. Newton's theory describes gravity as a force between two objects, while Einstein's theory of general relativity explains gravity as the curvature of space-time caused by the presence of mass or energy.

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