https://physics.codidact.com/categories/54/tags/4610.rssNew Posts Tagged 'special-relativity' - PhysicsPhysics - Codidact2022-02-21T01:42:09Zhttps://physics.codidact.com/posts/285193Is $E=mc^2$ true for all frame of references?deleted user#2021-12-10T07:58:06Z2022-02-21T01:42:09Z<p>Which one is correct? $$E=mc^2$$ or $$E^2=(mc^2)^2+(pc)^2$$</p>
<p>I mostly seen $$E=mc^2$$ from my childhood, and when I was learning problem solving in relativistic mechanics I had seen $$E^...https://physics.codidact.com/posts/285133Clear up confusion on Minkowski signaturedeleted user#2021-12-07T09:51:15Z2021-12-13T07:41:02Z<p>All given metrics are for orthonormal-basis.</p>
<p><strong>2 dimensional spacetime :</strong></p>
<p>I saw that Minkowski Metric looks like this :
$$\pmatrix{-1 & 0 \\ 0 & 1}$$
or $...https://physics.codidact.com/posts/284426What is Ether theory? (I think the book I read is misinterpreting Ether)A person who doesn't know anythinghttps://physics.codidact.com/users/545552021-10-02T06:45:25Z2021-10-02T15:36:42Z<p>I was reading about Ether, Maxwell and Young-double-slit experiment. I got a question about Ether law. Let me say what I read about Ether Law.</p>
<blockquote>
<p>Suppose, a boat is traveling ...https://physics.codidact.com/posts/280499How does probability conservation work in Dirac's original formulation of relativistic QM?Technically Naturalhttps://physics.codidact.com/users/532632021-01-16T14:57:24Z2021-01-22T18:45:35Z<p>I asked this <a href="https://physics.stackexchange.com/q/580945">question</a> on Stack Exchange, and didn't get an answer, but maybe someone here will be able to help.</p>
<p>In non-relativist...https://physics.codidact.com/posts/280381Unusual way to write spacetime coordinates/metric: Is there any downside?celtschkhttps://physics.codidact.com/users/80562021-01-10T12:18:45Z2021-01-10T22:55:13Z<p>In special relativity, spacetime coordinates are normally given as
$$(ct, x, y, z) \tag{S}$$
with the metric being either
$$g = \operatorname{diag}(-1,1,1,1) \tag{+}$$
or
$$g = \operatornam...