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Gravity Leads To Black Holes

The infinite weirdness of black holes makes it difficult for a physicist to combine gravity with quantum mechanics (QM).

The fact that gravity works on everything makes it difficult to construct an apparatus to measure the QM properties of gravity. This is because the measuring apparatus can itself collapse into a black hole if it is heavy, and would not be able to measure accurately if it is too light.

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Quantum Gravity And The Degrees Of Freedom

Any proposed theory of quantum gravity would need to take care of the principles of locality, which state that any variable can change independently while measuring the properties of any point in space-time. These variables are called the degrees of freedom.

A...

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From Curves To Strings

The ‘curves in space’ theory of gravity is falling out of favour due to the fact that Einstein’s equations seem to work on our solar system but begin to break when we apply the same near a black hole or back in time, during the initial big bang.

String Theory, which conce...

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Gravity And Unknown Factors

The reason Einstein’s theory of general relativity works well in lower energy calculations and standard quantum techniques but not in higher energies and scales (like a black hole), could be because certain key features or ingredients of gravity are yet unknown to us, and are therefore missing fr...

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Something Out Of Nothing

Quantum gravity experiments and observations show some interesting phenomena in particles and even space-time. It is the cause of the creation of entire universes, not just particles.

The more the universe expands, the more vacuum is created, due to the expansion of space-time, leading to ...

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Gravity Is Incalculable

  • While performing quantum calculations, certain infinite terms appear, making these theories ‘non-renormalizable’.
  • Theories that are describing the forces of nature other than gravity, can easily be renormalized(put to scale) and that makes gravity an a...

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The Holographic Principle

"The number of degrees of freedom in a spatial region is proportional to its surface area instead of its volume” - Daniel Harlow, Quantum gravity theorist at MIT.

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Gravity And The Forces Of Nature

Gravity And The Forces Of Nature

According to physicists, quantum particles are responsible for three forces of nature:

  • Strong nuclear force.
  • Weak nuclear force.
  • Electromagnetic force.

The fourth force of nature, gravity, is till now assumed to not originate from quantum par...

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General Relativity Theory

Einstein's General Theory Of Relativity provides a rock-solid description of gravity, black holes and even the Big Bang, but fails to explain the very ‘singularities’ that signal towards infinity.

The extraordinary force of gravity can be researched with new-age engineering experiments bu...

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Black Holes: The Dark Stars

Black Holes: The Dark Stars

A black hole is, like the name itself, a point of singularity and infinite density, which remains invisible, much like the event horizon, which is the surface.

A black hole, from a distance, carries the same properties of mass and gravity like a star would...

What Are Black Holes ?

What Are Black Holes ?

  • ….. was a star so massive that it had collapsed in on itself.
  • It’s so massive that not even light can escape its gravity, which is why it’s almost perfectly black.
  • It’s gravitational pull is so powerful, it warps and distorts not only light but also...

What are black holes ?

Black holes are particles which have huge gravitational power, almost 1000 times that of the earth or any other planet. Scientists say that if you put anything in front of a black hole, it's going to suck that thing immediately, within a fraction of seconds.

A gravitation...

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