user10967: 
“The religion of the future will be a cosmic religion. It should transcend personal God and avoid dogma and theology. Covering both the natural and the spiritual, it should be based on a religious sense arising from the experience of all things natural and spiritual as a meaningful unity. Buddhism answers this description. If there is any religion that could cope with modern scientific needs it would be Buddhism.” – Albert Einstein.

As per above quotes it give us some clues that Albert Einstein the greatest scientist of the century immensely influenced by Buddhism. When we study the theory of relativity seems to get root from Buddhism with the descriptions of time flow in six realms. Do anyone have descriptions "Theory of relativity" and are there any relationship with Buddhist teaching?  

user254: Do anyone have descriptions "Theory of relativity" and are there any relationship with Buddhist teaching?
Asking "what is the theory of relativity?" isn't on-topic on this site (which is about Buddhism and not, say, Physics). Someone could try to draw analogies between Relativity and Buddhism; and they may have some characteristics in common (e.g. they're both dharmas, both anatta); but IMO there's little or no relationship (except that someone can try to learn both and then try to relate them).
One possible relationship is the idea that a frame of reference isn't privileged -- i.e. things exist in relationship to other things (which reminds me of "Indra's net", and of "this/that conditionality").
When we study the theory of relativity seems to get root from Buddhism with the descriptions of time flow in six realms.
There is a phenomenon called relativistic time dilation: if I were one of those twins, it would seem to me that I age at whatever the normal rate is but my twin ages at a different rate.
I'm not sure that (i.e. I doubt that) is the same kind of "different time flows" that you might read about in Buddhism.
There's an idiom in English "time flies when you're having fun" (see e.g. this article). Possibly the "time flow" described in Buddhism is more like that, i.e. it's a description of subjective time flow.

user7309: Because Buddhism does not have any notion of an objective, absolute construct (such as the Absolute Space, Time, Property or Object within Newtonian mechanics), and because Buddhism doesn't jump to a complete nihilism given this absence of Self, all that is left is relativity. Dependent arising is principally that principle of relativity. Paper describing the parallels between Buddhist philosophy (Nagarjuna's) and Rovelli's relational QM. 
(Einstein's two relativities got rid of Absolute Time and Absolute Space relative to Newtonian mechanics btw, but he was still very certainly convinced that beyond the 'veil' of QM, there were fully deterministic, Absolute Objects and their Properties, "God does not play dice")

user471: Buddhism is not interested in the physics of cosmology, because the physics of cosmology is not soteriological. It doesn't contribute towards the permanent cessation of suffering.

"Conjecture about [the origin, etc., of] the world is an
unconjecturable that is not to be conjectured about, that would bring
madness & vexation to anyone who conjectured about it. - Acintita
Sutta

However, Einstein admired Buddhism because, I speculate, among world religions, Buddhism is the most empirical. It doesn't require beliefs and faith in things that are untestable and cannot be experienced in the here and now.
How is Buddhism related to the theories of relativity? It's obvious that both of Einstein's theories of relativity proved the Buddhist notion of impermanence (anicca).
Newton's physics assumed that the flow of time and the nature of space is fixed and permanent. Newton did not question the stage upon which nature is playing out its dynamic movements.
However, Einstein's discoveries proved that all of these are changing e.g. time dilation, curvature of space-time, gravitational waves etc. Here, Einstein proved that even the stage is dynamically changing.
Then you might argue that the speed of light is fixed and permanent. Well, that's only in vacuum. When light goes through other media, its speed changes.
So, absolutely nothing in the physical universe is permanent. Hence, Einstein's theories of relativity proved the Buddhist notion that apart from Nibbana, everything else is impermanent (anicca).
"Sabba sankhara anicca" - all conditioned and compounded things are impermanent.

user13992: As @ChrisW already indicated, Einstein never spoke or wrote that quote. Einstein appears to have occasionally made passing references to the Buddha in conversation, so the quote is likely concocted. Note that proponents of Abrahamic religions also quote Einstein out of context, most notably "God does not play dice with the universe", his reaction to Heisenberg's Uncertainty Principle. Einstein used "God" in this context to refer to the laws of physics, not a supernatural entity. In his own words:

"I have repeatedly said that in my opinion the idea of a personal god
is a childlike one. You may call me an agnostic, but I do not share
the crusading spirit of the professional atheist whose fervor is
mostly due to a painful act of liberation from the fetters of
religious indoctrination received in youth. I prefer an attitude of
humility corresponding to the weakness of our intellectual
understanding of nature and of our own being."

The Theories of Special and General Relativity do not stem from Buddhism, nor from any other philosophy or religion. I see answers here that claim

E=mc^{2}

can be substituted by

utu = pathavī x utujarūpa arising rate2

This is not the case.
the E stands for intrinsic energy, not just utu, which is related to temperature. The Abidharma forms of energy are closer to alchemy than to physics (water, fire, earth, etc.)
the m stands for relativistic mass. For a particle of finite rest mass m moving at a speed v relative to the observer, this means:

while pathavī in Abidharma stands for the Earth element, which has nothing to do with relativistic mass.
The c stands for light speed, which is the maximum velocity of event propagation in the universe. Utujarūpa means temperature-born materiality, which has nothing to do with event propagation. Photons do not equate termperature-born For example, an electron will emit a photon when it falls to a lower orbit. This has nothing to do with temperature, but is related to the quantized energy potential of the electron. Temperature is not quantized.
There are a lot of common principles in Buddhism and the scientific method, such as experimentation and independent verification. It is likely for this very fact that Einstein would refer to Buddhism in conversation. But trying to equate ancient doctrinal concepts with 20th century relativistic theory is a disservice to both disciplines.

10967: <blockquote>
  <p>“The religion of the future will be a cosmic religion. It should transcend personal God and avoid dogma and theology. Covering both the natural and the spiritual, it should be based on a religious sense arising from the experience of all things natural and spiritual as a meaningful unity. Buddhism answers this description. If there is any religion that could cope with modern scientific needs it would be Buddhism.” – Albert Einstein.</p>
</blockquote>

<p>As per above quotes it give us some clues that Albert Einstein the greatest scientist of the century immensely influenced by Buddhism. When we study the theory of relativity seems to get root from Buddhism with the descriptions of time flow in six realms. Do anyone have descriptions "Theory of relativity" and are there any relationship with Buddhist teaching?  </p>
 254: <p><strong>Do anyone have descriptions "Theory of relativity" and are there any relationship with Buddhist teaching?</strong></p>

<p>Asking "what is the theory of relativity?" isn't on-topic on this site (which is about Buddhism and not, say, Physics). Someone could try to draw analogies between Relativity and Buddhism; and they may have some characteristics in common (e.g. they're both dharmas, both anatta); but IMO there's little or no relationship (except that someone can try to learn both and then try to relate them).</p>

<p>One possible relationship is the idea that a frame of reference <a href="https://physics.stackexchange.com/q/18867/3773">isn't privileged</a> -- i.e. things exist in relationship to other things (which reminds me of "Indra's net", and of "this/that conditionality").</p>

<p><strong>When we study the theory of relativity seems to get root from Buddhism with the descriptions of time flow in six realms.</strong></p>

<p>There is a phenomenon called <a href="https://en.wikipedia.org/wiki/Twin_paradox" rel="nofollow noreferrer">relativistic time dilation</a>: if I were one of those twins, it would seem to me that I age at whatever the normal rate is but my twin ages at a different rate.</p>

<p>I'm not sure that (i.e. I doubt that) is the same kind of "different time flows" that you might read about in Buddhism.</p>

<p>There's an idiom in English "time flies when you're having fun" (see e.g. <a href="https://www.huffingtonpost.com/art-markman-phd/perception-of-time_b_940815.html" rel="nofollow noreferrer">this article</a>). Possibly the "time flow" described in Buddhism is more like that, i.e. it's a description of subjective time flow.</p>
 7309: <p>Because Buddhism does not have any notion of an objective, absolute construct (such as the Absolute Space, Time, Property or Object within Newtonian mechanics), and because Buddhism doesn't jump to a complete nihilism given this absence of Self, all that is left is relativity. Dependent arising is principally that <a href="https://en.wikipedia.org/wiki/Copernican_principle" rel="nofollow noreferrer">principle of relativity</a>. <a href="https://philarchive.org/archive/CAPIOQ-2v1" rel="nofollow noreferrer">Paper</a> describing the parallels between Buddhist philosophy (Nagarjuna's) and Rovelli's relational QM. </p>

<p>(Einstein's two relativities got rid of Absolute Time and Absolute Space relative to Newtonian mechanics btw, but he was still very certainly convinced that beyond the 'veil' of QM, there were fully deterministic, Absolute Objects and their Properties, "God does not play dice")</p>
 471: <p>Buddhism is not interested in the physics of cosmology, because the physics of cosmology is not soteriological. It doesn't contribute towards the permanent cessation of suffering.</p>
<blockquote>
<p>&quot;Conjecture about [the origin, etc., of] the world is an
unconjecturable that is not to be conjectured about, that would bring
madness &amp; vexation to anyone who conjectured about it. - <a href="https://www.accesstoinsight.org/tipitaka/an/an04/an04.077.than.html" rel="nofollow noreferrer">Acintita
Sutta</a></p>
</blockquote>
<p>However, Einstein admired Buddhism because, I speculate, among world religions, Buddhism is the most empirical. It doesn't require beliefs and faith in things that are untestable and cannot be experienced in the here and now.</p>
<p>How is Buddhism related to the theories of relativity? It's obvious that both of Einstein's theories of relativity proved the Buddhist notion of impermanence (<em>anicca</em>).</p>
<p>Newton's physics assumed that the flow of time and the nature of space is fixed and permanent. Newton did not question the stage upon which nature is playing out its dynamic movements.</p>
<p>However, Einstein's discoveries proved that all of these are changing e.g. time dilation, curvature of space-time, gravitational waves etc. Here, Einstein proved that even the stage is dynamically changing.</p>
<p>Then you might argue that the speed of light is fixed and permanent. Well, that's only in vacuum. When light goes through other media, its speed changes.</p>
<p>So, absolutely nothing in the physical universe is permanent. Hence, Einstein's theories of relativity proved the Buddhist notion that apart from Nibbana, everything else is impermanent (<em>anicca</em>).</p>
<p>&quot;<em>Sabba sankhara anicca</em>&quot; - all conditioned and compounded things are impermanent.</p>
 13992: <p>As @ChrisW already indicated, Einstein never spoke or wrote that quote. Einstein appears to have occasionally made passing references to the Buddha in conversation, so the quote is likely concocted. Note that proponents of Abrahamic religions also quote Einstein out of context, most notably &quot;God does not play dice with the universe&quot;, his reaction to <a href="https://en.wikipedia.org/wiki/Uncertainty_principle" rel="nofollow noreferrer">Heisenberg's Uncertainty Principle</a>. Einstein used &quot;God&quot; in this context to refer to the laws of physics, not a supernatural entity. In his own words:</p>
<blockquote>
<p>&quot;I have repeatedly said that in my opinion the idea of a personal god
is a childlike one. You may call me an agnostic, but I do not share
the crusading spirit of the professional atheist whose fervor is
mostly due to a painful act of liberation from the fetters of
religious indoctrination received in youth. I prefer an attitude of
humility corresponding to the weakness of our intellectual
understanding of nature and of our own being.&quot;</p>
</blockquote>
<p>The Theories of Special and General Relativity do not stem from Buddhism, nor from any other philosophy or religion. I see answers here that claim</p>
<blockquote>
<p>E=mc^{2}</p>
</blockquote>
<p>can be substituted by</p>
<blockquote>
<p>utu = pathavī x utujarūpa arising rate2</p>
</blockquote>
<p>This is not the case.</p>
<p>the <strong>E</strong> stands for intrinsic energy, not just <em>utu</em>, which is related to temperature. The Abidharma forms of energy are closer to alchemy than to physics (water, fire, earth, etc.)</p>
<p>the <strong>m</strong> stands for relativistic mass. For a particle of finite rest mass m moving at a speed <em>v</em> relative to the observer, this means:</p>
<p><a href="https://i.stack.imgur.com/FlGBH.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/FlGBH.png" alt="enter image description here" /></a></p>
<p>while <em>pathavī</em> in Abidharma stands for the Earth element, which has nothing to do with relativistic mass.</p>
<p>The <strong>c</strong> stands for light speed, which is the maximum velocity of event propagation in the universe. <em>Utujarūpa</em> means <em>temperature-born materiality</em>, which has nothing to do with event propagation. Photons do not equate termperature-born For example, an electron will emit a photon when it falls to a lower orbit. This has nothing to do with temperature, but is related to the quantized energy potential of the electron. <a href="https://physics.stackexchange.com/questions/32618/is-temperature-quantized#:%7E:text=No.,of%20large%20numbers%20of%20objects.&amp;text=More%20generally%2C%20a%20temperature%20bath,so%20temperature%20is%20not%20quantized.">Temperature is not quantized</a>.</p>
<p>There are a lot of common principles in Buddhism and the scientific method, such as experimentation and independent verification. It is likely for this very fact that Einstein would refer to Buddhism in conversation. But trying to equate ancient doctrinal concepts with 20th century relativistic theory is a disservice to both disciplines.</p>
