- Why is general relativity wrong?
- Can gravitons be dark matter?
- Is centrifugal force real?
- What causes gravity simple answer?
- What is Einstein’s theory of gravity supported by?
- Did Einstein believe in gravitons?
- Is gravity a fictitious force?
- Has E mc2 been proven?
- What did Einstein say about gravity?
- Why is gravity not a force?
- Can we create gravity?
- What is gravity made of?
- Is gravity an illusion?
- Is gravity still a theory?
- Why is gravity so weird?
- Where is gravity the strongest?
- Who first theorized the existence of a black hole?
- Was Einstein right about gravity?
- Is gravity a real force?
- Who invented gravity?
- Is gravity a quantum?
Why is general relativity wrong?
Yet most researchers think general relativity is wrong.
After all, the other forces of nature are governed by quantum physics; gravity alone has stubbornly resisted a quantum description.
The fix is dark matter, particles invisible to light but endowed with gravity..
Can gravitons be dark matter?
We consider the possibility that the massive graviton is a viable candidate of dark matter in the context of bimetric gravity. We first derive the energy-momentum tensor of the massive graviton and show that it indeed behaves as that of dark matter fluid.
Is centrifugal force real?
The centrifugal force is very real if you are in a rotating reference frame. … However, the centrifugal force is an inertial force, meaning that it is caused by the motion of the frame of reference itself and not by any external force.
What causes gravity simple answer?
The answer is gravity: an invisible force that pulls objects toward each other. … So, the closer objects are to each other, the stronger their gravitational pull is. Earth’s gravity comes from all its mass. All its mass makes a combined gravitational pull on all the mass in your body.
What is Einstein’s theory of gravity supported by?
Instead, Einstein showed that gravity is a result of the warping, or curving, of space and time, which made up the same space-time “fabric.” These ideas about space-time and gravity became known as Einstein’s theory of general relativity.
Did Einstein believe in gravitons?
That’s because each theory takes a radically different view of the force of gravity. According to Einstein, matter distorts the very fabric of space and time around it, creating the effect of an attractive force field. … In the case of gravity, those particles are known as ‘gravitons’.
Is gravity a fictitious force?
General relativity is his theory of gravity, and gravity is certainly the paradigmatic example of a “real” force. The cornerstone of Einstein’s theory, however, is the proposition that gravity is itself a fictitious force (or, rather, that it is indistinguishable from a fictitious force).
Has E mc2 been proven?
It’s taken more than a century, but Einstein’s celebrated formula e=mc2 has finally been corroborated, thanks to a heroic computational effort by French, German and Hungarian physicists. … In other words, energy and mass are equivalent, as Einstein proposed in his Special Theory of Relativity in 1905.
What did Einstein say about gravity?
Einstein did. He theorized that a mass can prod space plenty. It can warp it, bend it, push it, or pull it. Gravity was just a natural outcome of a mass’s existence in space (Einstein had, with his 1905 Special Theory of Relativity, added time as a fourth dimension to space, calling the result space-time.
Why is gravity not a force?
In general relativity, gravity is not a force between masses. Instead gravity is an effect of the warping of space and time in the presence of mass. Without a force acting upon it, an object will move in a straight line. … This explains why all objects fall at the same rate.
Can we create gravity?
Artificial gravity can be created using a centripetal force. A centripetal force directed towards the center of the turn is required for any object to move in a circular path. In the context of a rotating space station it is the normal force provided by the spacecraft’s hull that acts as centripetal force.
What is gravity made of?
They proposed that gravity is actually made of quantum particles, which they called “gravitons.” Anywhere there is gravity, there would be gravitons: on earth, in solar systems, and most importantly in the miniscule infant universe where quantum fluctuations of gravitons sprung up, bending pockets of this tiny space- …
Is gravity an illusion?
In part, gravity is an illusion. In part, it is associated with a quantity called “curvature”. Overall, gravity is intimately connected with the geometry of space and time.
Is gravity still a theory?
Although Newton’s theory has been superseded by Albert Einstein’s general relativity, most modern non-relativistic gravitational calculations are still made using Newton’s theory because it is simpler to work with and it gives sufficiently accurate results for most applications involving sufficiently small masses, …
Why is gravity so weird?
2. Why is gravity so weird? No force is more familiar than gravity — it’s what keeps our feet on the ground, after all. And Einstein’s theory of general relativity gives a mathematical formulation for gravity, describing it as a “warping” of space.
Where is gravity the strongest?
In the case of the earth, the force of gravity is greatest on its surface and gradually decreases as you move away from its centre (as a square of the distance between the object and the center of the Earth). Of course, the earth is not a uniform sphere so the gravitational field around it is not uniform.
Who first theorized the existence of a black hole?
Albert EinsteinAlbert Einstein first predicted the existence of black holes in 1916, with his general theory of relativity. The term “black hole” was coined many years later in 1967 by American astronomer John Wheeler.
Was Einstein right about gravity?
16 in the journal Science, shows that gravity works just as Einstein predicted even at the very edge of a black hole — in this case Sagittarius A*, the supermassive black hole at the center of our Milky Way galaxy. …
Is gravity a real force?
In general relativity, gravity is a fictitious force. In classical mechanics, fictitious forces are not considered “real” forces. … If you believe that inertial forces are forces, then gravity is a force. If you believe that inertial forces are not forces, then gravity is not a force.
Who invented gravity?
Isaac Newton’sConsider how Isaac Newton’s discovery of gravity led to a better understanding of planetary motion. Isaac Newton’s formulation of the law of universal gravitation.
Is gravity a quantum?
Quantum gravity (QG) is a field of theoretical physics that seeks to describe gravity according to the principles of quantum mechanics, and where quantum effects cannot be ignored, such as in the vicinity of black holes or similar compact astrophysical objects where the effects of gravity are strong, such as neutron …