The “General Theory of Relativity’ is related to gravity. It describes gravitational force as continuous non-spatial whole of space and time. … The difference between the two theories is that the theory of general
relativity throws light on the force of gravity with respect to curving four-dimensional space-time.
What are the differences between Newton’s and Einstein’s theories?
In the 17th century Newton concluded that objects fall because they are pulled by Earth’s gravity. Einstein’s interpretation was that
these objects do not fall
. According to Einstein, these objects and Earth just freely move in a curved spacetime and this curvature is induced by mass and energy of these objects.
What is the difference between the special theory and the general theory of relativity?
Special relativity applies to all physical phenomena in the absence of gravity. General relativity
explains the law of gravitation and its relation to other forces of nature
. It applies to the cosmological and astrophysical realm, including astronomy.
What are the two principles of theory of relativity?
1. The principle of relativity:
The laws of physics are the same for any inertial reference frame
. 2. The principle of the speed of light: The speed of light in a vacuum is the same for all observers, regardless of their relative motion or the motion of the source of the light.
How did Einstein prove relativity?
Einstein postulated three ways this theory could be proved. One
was by observing the stars during a total solar eclipse
. The sun is our closest strong gravitational field. Light traveling from a star through space and passing the sun’s field would be bent, if Einstein’s theory were true.
What are the two types of relativity?
The theory of relativity is traditionally broken into two parts,
special and general relativity
. Special relativity provides a framework for translating physical events and laws into forms appropriate for any inertial frame of reference. General relativity addresses the problem of accelerated motion and gravity.
Did Einstein believe in black holes?
Over a century ago,
Albert Einstein predicted that the gravitational pull of black holes were so strong that they should bend light right around them
. Black holes don’t emit light, they trap it; and ordinarily, you can’t see anything behind a black hole.
Did Einstein believe in 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.
Is theory of relativity wrong?
The foundations of relativity (such as the equivalence principle or the relativity principle)
are not fictitious
, but based on experimental results. Also, effects like constancy of the speed of light and relativity of simultaneity are not contradictory, but complementary to one another.
What is the general theory of relativity in simple terms?
What is general relativity? Essentially, it’s
a theory of gravity
. The basic idea is that instead of being an invisible force that attracts objects to one another, gravity is a curving or warping of space. The more massive an object, the more it warps the space around it.
What is Einstein’s theory of relativity in simple terms?
Albert Einstein, in his theory of special relativity,
determined that the laws of physics are the same for all non-accelerating observers
, and he showed that the speed of light within a vacuum is the same no matter the speed at which an observer travels, according to Wired.
What does E mc2 mean in simple terms?
Einstein’s Big Idea homepage. E = mc
2
. It’s the world’s most famous equation, but what does it really mean? “
Energy equals mass times the speed of light squared
.” On the most basic level, the equation says that energy and mass (matter) are interchangeable; they are different forms of the same thing.
How was E mc2 proven?
An instrument called GAMS4
, originally designed and built at NIST and now located at Institut Laue Langevin in France, was used in experiments that helped to confirm Einstein’s famous equation E=mc2;.
Is time the same in space?
We all measure our experience in space-time differently. That’s because
space-time isn’t flat
— it’s curved, and it can be warped by matter and energy. So depending on our position and speed, time can appear to move faster or slower to us relative to others in a different part of space-time.
How do we use relativity today?
Even today, general relativity
plays its main role in the astronomical domain
, with its black holes, gravity waves and cosmic big bangs, or in the domain of the ultra-small, where theorists look to unify general relativity with the other interactions, using exotic concepts such as strings and branes.
How fast is gravity?
The best results, at the present time, tell us that the speed of gravity is
between 2.993 × 10^8 and 3.003 × 10^8 meters per second
, which is an amazing confirmation of General Relativity and a terrible difficulty for alternative theories of gravity that don’t reduce to General Relativity!
