The speed of Light.

It has to be *some* speed.

because seconds are arbitrary

That's just how God made it.

Because it can't be infinite. The entire universe might scale based on that speed.

>>8879997
Because mu naught epsilon naught

Something something

electromagnetic waves in a vacuum

>>8879997
https://youtu.be/msVuCEs8Ydo

>>8879997
Oh I know!

...Wait...

Damn, already hit reply.

Oh well... Actually, I think this is one of those fundamental things we don't fully understand, but I hit reply as I recalled having it explained to me as part of the nature of quantum vacuum permeability, but now I'm brain farting and I can't seem to find anything related, save this snippet:

https://en.wikipedia.org/wiki/Vacuum_permeability#Significance_in_electromagnetism

Only other possibly useful information I might bring up, is that the speed of light isn't dictated by the speed of light - all massless particles travel at the speed of light. Rather, it's the maximum speed of information propagation in the universe. Any information traveling faster results in a casual violation - not that relativity can't already result in events happening out of order to different observers, nor that even quantum physics doesn't allow for some forms of causal violation. ...but in the end, with the exception some extreme and some theoretical phenomenon, the speed of information propagation remains the same.

Why is pi 3.14XXXXXX......

constants were put there by something or you can be a godless heathen and believe it just randomly happened

>>8880058
I think we all know how to derive pi.

I don't think we all know how to derive the speed of light.

Though like the vid says, >>8880047, I suppose there maybe some way involving Lorentz transformations and Maxwell equations. Sadly, above my pay grade.

>>8879997
[1/(mu naught times epsilon naught)]^(1/2) = c

thats what

forgive me for not knowing how to put in the actual characters, im a newfag

>>8880076
I think he's asking what is the mechanical property of the universe, or the logically exclusive process of math, that forces that.

Granted, I'm still trying to figure out why half spin particles can't occupy the same space ala Pauli Exclusion Principle. Meh >>>/sci/sqt/

Both risk the infinite why regression, but meh, on the surface they sound pretty basic.

>>8880005
this answers the question the best really

>>8880178
Tell that to the next cop who pulls you over with a radar gun.

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1MB, 394x297px

>>8880000
Nice digits
>>8879997
see >>8880005 and >>8880052

>>8879997
>Why is it that speed?
Because that is the way the meter is defined.

>>8879997
Actually it is not.
This is due to human perception.
Notice that sound and light are mere energy and depending on which way we collect it, we call it sound or light. Also notice the correlation between speed of sound and speed of light.

>>8880315
Woosh

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>>8879997
why is the blue car blue

>>8880371
Because it's travelling fast towards you. Get out of the way!

>>8879997
>m

Wait a second...

>>8880339
>correlation between speed of sound and speed of light
Well, speed of light in a vacuum travels as fast as it is possible to go, and speed of sound in a vacuum is zero, as there's no medium to travel through... I guess that's a correlation.

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>>8880052
[math]
\displaystyle
c = \frac{1}
{ \sqrt{ \varepsilon_0
\mu_0
}
}
[/math]

any constant looks weird because of how we use numbers to view them

i'm sure in some other medium or form that has nothing to do with numbers, the constant can be represented in a way that makes perfect sense

>>8880438
latex broken in /sci/ ?

>>8880005
It's true that the exact value of the speed of light is arbitrary because the exact value of a second is arbitrary as well as the meter to light year ratio.

However seconds are based on the divisions of the day, so the concept is not arbitrary

>speed of light not measured in feet

>>8880438
He asked why, not what.

>>8880005
If we assume that the number that is the speed of light wasn't arbitrary, and we tried to work our way backward from that, redefining seconds, could we get any interesting results?

>>8880516
Not really. Seconds were once defined with nuclear reactions afaik, and there were some problems with the speed of light, they knew it was constant and some kind of an "upper limit", but couldn't prove it.

Einstein solved it by posing it as an axiom.

>>8880067
its the speed that satisfies them simultaneously or something similar

>>8880506
>why
Vacuum has something analogous to fluid compressibility and density, that is, vacuum isn't just "nothing".

>>8880438
All you've done is replace one constant with two. Why are the other constants the values they are? I'll give you a head start, we define mu exactly.

>>8880673
>>8880052
>>8880047
Well, at least some folks know enough about the subject not to dodge it by giving yet another definition of the speed of light or simply saying "seconds are fucked".

OP is asking what are the mechanical properties that cause the speed of light (or the maximum speed of causality) to be what it is. What prevents it from being faster, or slower, for instance.

>>8880744
If that was the question he should have asked it as such

>>8879997
Time and space are the same thing.

1 second is exactly 299 792 458 meters in the 4th dimension. When you use the correct speed of 1 m/m, that is dimensionless 1. And when you do c^2, if you still get 1, and E=m (with a constant depending on what units you use). All velocities in the universe are dimensionless and between 0 and 1.

>>8880728
it's always been two

https://en.wikipedia.org/wiki/Speed_of_light#Propagation_of_light

>>8880754
[autism intensifies]

>>8880754
I'm kinda confused as to how, "Why is it that speed?" would generate any other sort of response.

I mean, if someone asks "Why is the speed limit on the highway 55mph?" - "Because the sign says so!" or "25+30 = 55" or "Cuz miles are arbitrary!", aren't legitimate answers.

Why doesn't light travel the entire universe instantly if the photons doesn't have mass? What is slowing it down?

Because of how a fucking meter is defined. Are you all idiots?

>>8881359
political correctness

photons energy
E=pc

So there is no objective speed for light, its just our subjective arbitrary measurement of it using our method of calculations?

>>8880000
checked

>>8880371
Activated almonds, ect.

>>8882214
correct, just one feminist dance therapy class is all you need to change c

>>8881373
Woosh

the real question is: is the pilot wave moving faster than the light we observe?

>>8881373
>Because of how a fucking meter is defined. Are you all idiots?
facepalm.jpg

If only we HAD started out defining the meter in relation to lightspeed, we could have made c = 3x10^8 m/s, and not 2.99792458 x10^8 m/s.