The Minkowski space is a mathematical concept that was developed by Hermann Minkowski in the early 20th century.
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Btw first hehe
Btw second hehe
I think i get more knowledge by watching YouTube than studying in school
You can gain knowledge from everywhere. School is just one place.
@Cosmoknowledge wise response!
This and therefore. this is all you humans know, meaning there is Wisdom of Knowledge ,that are not Available to the way you think or think you know.!
Thank you for this!
DEEP
Indeed. 😄
“Spacetime is flat”? I find it a bit strange that people make fun of flat-earthers, and rightfully so… but when someone says something preposterous like “spacetime is flat”, almost nobody finds it laughably absurd.
Well, flat-Earth and the Minkowski space are two completely different areas. There’s a whole science behind the Minkowski Spacetime.
@Cosmoknowledge Fair enough. But to state that “Spacetime is flat”, as does the thumbnail of this video, just because a particular representation of it is flat, is equivalent to stating that the earth is flat, just because virtually all maps of the earth are flat, with the exception of globes.
“Spacetime” itself, when considered as an actual physical entity, encompasses all of three-dimensional space, at all moments of time, and is therefore definitively not “flat” by any sensible meaning of the word.
I mean, is not the earth, through time, a subset of spacetime? If we can say that “spacetime is flat”, can we not conclude from this that the earth, through time, is also flat? If we accept the truth of the statement “spacetime is flat”, does that not imply the truth of the statement that “the earth is flat”?
Yes, I know I am just poking holes in the semantics of your terminology.😸 But instead of saying “spacetime is flat”, it would be accurate to say “Minkowski spacetime is flat”, because Minkowski spacetime is nothing more than a mathematical model of spacetime (and only of a very specific case of it), just as a Mercator or Lambert map projection is just a mathematical model of the surface of the earth’s spheroid.
Even ignoring all that, nobody with even a passing familiarity of general relativity would assert that spacetime is flat in that context. Minkowsi spacetime is only flat because it specifically represents special relativitiy. It can only really be applied to general relativity as an approximation of small local extents of that domain, or of localities devoid of mass.
@NondescriptMammal I am sitting here laughing. Everything you say is somewhat correct in my mind. Minkowski space&time is both flat and curved. Actual spacetime (as a single direction m/s) at least as the observer of the past is a pseudo 2.5D spherical map like a kind of blurred histogram. There is no “now” concept of 3D (x,y,z) in that anywhere for the observer. I think Mr Albert was right in his initial statement to Minkowski when he said “I don’t like your minkowski hyperbol”. lol
Minkowski spacetime is not flat (Euclidean) but hyperbolic. It is a 4D Lobachevski space. Minkowski himself wrote that his spacetime is hyperbolic. Einstein, not understanding the math behind the spacetime dubbed it pseudo-Euclidean and this misconception has been parroted ever since.
I’m working through this in undergrad right now and I’m stuck on the idea of hyperbolic space. Why is spacetime represented with a hyperbola and not another conic section like a parabola or an elipse? What does it imply about space to be hyperbolic? And the biggest thing bothering me, what’s the other side of the hyperbola represent?