Does Antigravity Exist? Exploring Justifiable Physics

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In summary, the existence of antigravity is still a topic of debate and speculation in the scientific community. While there is theoretical support for its existence, it has yet to be proven through experimentation. The concept of negative energy and its role in a gravitational field provides a possible explanation for antigravity, but it is difficult to measure and verify. Therefore, more research is needed before a definite answer can be given.
  • #1
argonurbawono
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does antigravity exist?

is there a justifiable physics behind it?
 
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  • #2
argonurbawono said:
does antigravity exist?

is there a justifiable physics behind it?

No. Absolutely none.
 
  • #3
coalquay404 said:
argonurbawono said:
does antigravity exist?

is there a justifiable physics behind it?
No. Absolutely none.
Maybe, just maybe, "not yet"?? :wink:

Astrophysics is the understanding of the universe 'out there' (astro-) by the application of the 'physics down here' (-physics).

Sometimes, however, just occasionally, it works the other way round and we learn about something 'out-there' that is subsequently discovered in the laboratory 'down-here'. So, for example, helium was discovered in the solar spectrum before it was identified in the laboratory on Earth.

Today in cosmology the 'physics down here' is the application of GR and nuclear physics to the universe on the largest scales and earliest times.

Interpreting the data under that paradigm it is found that physics, as yet undiscovered in the laboratory, has also to be invoked to produce a concordant standard model; viz: Inflation with its Higgs Boson or Inflaton, non-baryonic DM and DE.

The last one is the interesting one from this question's POV, because on a cosmological scale it performs the role of anti-gravity.

Does DE only work on the largest scales, say as the cosmological constant, or is it another kind of repulsive force?
If the latter, will DE ever be identified in the laboratory?
Does it actually exist in the first place or is the need for these entities an artifact of the standard paradigm breaking down at these largest ranges and earliest times?

I would advocate keeping an open mind at the moment until we know more about what we are talking about.

Garth
 
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  • #4
Negative energy has been well-supported by theoretical model and somewhat verified by experiment. It is predicted to be "gravitationally repulsive", but experimentation to prove that would be extremely difficult. Heck, as far as I know, we haven't even verified the gravitational behavior of antimatter yet. It's predicted to behave "normally" in response to the presence of a gravitational field, but gravity's just so weak that it's hard to measure.

So I would say yes, there is "justifiable physics" behind it, but getting emperical proof is nearly impossible.
 

FAQ: Does Antigravity Exist? Exploring Justifiable Physics

What is antigravity and how does it work?

Antigravity is a hypothetical concept that proposes the existence of a force that opposes the force of gravity, allowing objects to float or move upwards without the influence of gravity. This concept is not currently supported by scientific evidence and is considered to be in the realm of science fiction. There is no known mechanism for how antigravity would work.

Has antigravity been proven to exist?

No, antigravity has not been proven to exist. There have been numerous experiments and studies conducted to explore the possibility of antigravity, but none have provided conclusive evidence for its existence. The concept remains purely theoretical at this point.

What are some proposed explanations for antigravity?

There are a few proposed explanations for antigravity, such as the use of exotic matter with negative mass or the manipulation of gravitational fields through advanced technology. However, these explanations are highly speculative and have not been proven or supported by scientific evidence.

How does the study of antigravity relate to our current understanding of physics?

The study of antigravity challenges our current understanding of physics and forces scientists to question the fundamental laws of nature. It also highlights the limitations of our current knowledge and encourages further exploration and research in the field of physics.

Is it possible that antigravity could exist in the future?

It is always possible that new discoveries and advancements in science and technology could lead to the development of antigravity in the future. However, it is important to approach this concept with a critical and scientific mindset, rather than assuming its existence based on speculation or science fiction.

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