Answer #1:
It was proven during an eclipse. During an eclipse, the stars near the sun can be observed and thus calculate by how much the light beam from the stars are deviated due to the mass of the sun. Newtonian physics can calculate this, but is very inaccurate, usually half the actual answer.
Nowadays, highly precise atomic clock can be put onto air crafts and the slight time dilation is exactly the same as special relativity predicted."
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Answer #2: What's wrong with Answer #1:
The eclipse was used to prove General Relativity, not Special Relativity. Gravitational lensing is the domain of the former, not the latter.
Newtonian physics absolutely cannot calculate gravitational lensing. In fact, under Newtonian physics gravitational lensing isn't even possible, since light is massless and so isn't affected by gravity.
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I have a problem with Answer #2.
My understanding is that the photon has no rest mass, but is never at rest, and has plenty of mass at the speed at which it's always moving, namely 'c'.
Seems to me that the energy carried by the photon is its kinetic energy ... 1/2 m v-squared .
We also know that the energy of the photon is (h nu).
So we can say that (h nu) = 1/2 m v-squared.
Massage this for a while, and we arrive at (Mass) = (2h) / (c lambda) . This seems reasonable ... at least it says that the photon mass is inversely proportional to its wavelength, which is exactly what you would expect if the tiny pellet of mass is the energy carrier.
So now tell me where I have gone wrong.
Newton explained his theory
Alfred Weneger was trying to prove his theory of Continental Drift. Many other scientists before him had the same theory, but they never could prove it. He had five pieces of evidence.
E=mc² The Special and General Theories of Relativity
The cast of Relativity - 2013 includes: Carl Crawford as Boy
Robert Boyle refounded the theory of atoms in his book The Sceptical Chymist (yes, there are some spelling mistakes in his original title).
Galileo Galile wrote "the Theory of Relativity", and Einstein wrote the General theory of relativity and the special theory of relativity.
Special Relativity 1905 General Relativity completed 1915 published 1916
At least special theory of relativity was published 1905
No but others have.
That's part of the Special Theory of Relativity - published 1905.That's part of the Special Theory of Relativity - published 1905.That's part of the Special Theory of Relativity - published 1905.That's part of the Special Theory of Relativity - published 1905.
The theory of relativity was introduced by Albert Einstein in 1905 with his special theory of relativity, and later expanded with the general theory of relativity in 1915.
The theory of relativity, proposed by Albert Einstein, was first introduced in 1905. This theory consists of two parts: the special theory of relativity and the general theory of relativity. The special theory of relativity deals with the relationship between space and time, while the general theory of relativity extends this to include gravity.
The theory of relativity. There are actually two - the special and the general.
Albert Einstein is the developer of the theory of relativity. His groundbreaking work consisted of two theories: the special theory of relativity, published in 1905, and the general theory of relativity, published in 1915.
He asked God.
Albert Einstein published the special theory of relativity in 1905(on the electrodynamics of moving bodies)
Einstein didn't prove the theory of relativity. It is a theory, a possible explanation, it is generally accepted because it explains a lot of things but that doesn't "prove" the theory, at least not to physicists. See related questions for the country of discovery.