PBS Space Time
The Speed of Causality
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The speed of light is often cited as the fastest anything can travel in our universe. While this might be true, the speed of light is the EFFECT and not the CAUSE of this phenomenon. So what’s the cause? On this week’s episode of Space Time, Matt helps explain what the speed of light REALLY is and why it’s the cosmic speed limit of our universe!
“The Real Meaning of E=mc²”:
https://www.youtube.com/watch?v=Xo232kyTsO0
“Are Space And Time An Illusion?”:
https://www.youtube.com/watch?v=YycAzdtUIko
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SOURCES:
Einstein’s derivation or the Lorentz transformation from the invariant speed of light:
Einstein, Albert (1916) “Relativity: The Special and General Theory”
http://www.archive.org/stream/cu31924011804774#page/n159/mode/2up
Lorentz Transformation without invariant speed of light, from relativity, isotropy, and consistency of frame transitions (closure group postulate):
von Ignatowsky, “Das Relativitatsprinzip,” Archiv der Mathematik und Physik 17, 1–24 (1911)
Berzi1 & Gorini, J. Math. Phys. 10, 1518 (1969)
http://dx.doi.org/10.1063/1.1665000
Pelissetto & Testa, American Journal of Physics, 83, 338, (2015) “Getting the Lorentz transformations without requiring an invariant speed”
http://arxiv.org/abs/1504.02423
https://en.wikipedia.org/wiki/Derivations_of_the_Lorentz_transformations
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COMMENTS:
Denny Hiu
https://www.youtube.com/watch?v=AwwIFcdUFrE&lc=z124w3dhotmtx34lk224wzxyhwqufdefe
. (RadimaxRadimaX)
https://www.youtube.com/watch?v=AwwIFcdUFrE&lc=z124xv145zzkzpiei233spnqjzraejjig04
Epsilon Lazerface
https://www.youtube.com/watch?v=AwwIFcdUFrE&lc=z12fv5ejyzyyc1dbv04cgzhyxknfzdnjcao
LassieDog999
https://www.youtube.com/watch?v=AwwIFcdUFrE&lc=z12zz13iezrqh142k23kitgxuqjqy35su
Tenebrae
https://www.youtube.com/watch?v=AwwIFcdUFrE&lc=z134yj2pcvrkhnu4u04ccdxhuufvuvkomd0
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REFERENCES:
Krauss & Scherrer 2007 http://arxiv.org/abs/0704.0221
Vardanyan, Trotta & Silk, 2011 http://arxiv.org/abs/1101.5476
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Great video. Considero que este canal es lo más extraordinario que tiene youtube.
So why is it proposed that the universe expanded faster than the speed of light in the beginning? How or why does that happen?
Does it bother anyone that the lorentz transformation is derived from classical and not quantum methods?
I am distracted by how far apart his legs are standing there.
If time slows down at the speed of light, does it mean the light from the big bang has , from the lights own perspective, come to this point in time instantaniously? And that same light will be at the complete end of the universe in basically a blink of an eye
Nice job! Your videos are very informative, understandable and entertaining. Keep up the good work!
STARTING FROM ZERO TO THE HIGHEST SPEED… GOING SO FAST THAT IT WILL STOP.. STARTING AGAIN FROM ZERO SPEED TO THE HIGHEST SPEED GOING SO FAST THAT IT STOPS.. STARTING AGAIN FROM ZERO SPEED… ETC ETC ETC… LOOP LOOP LOOP… GR KARMA
If the speed of causality is the speed of light and it has a limit does that mean all causality such as warp drive warping space will not be possible?
🙁
Couldn't stop seeing a younger Tyrion Lannister. Sorry.
5:49 well fuck you then
Now that the speed of light is being manipulated all of the sudden the speed of light doesn’t have anything to do with light. It is a way for scientists to try desperately to save all theories that are built off a constant that isn’t a constant at all.
what about tachyons
Do you have to use a pony with a monkey and a skateboard to explain something then you don't understand it.
c is maximum processing speed of the computer that running this universe simulation.
welcome to the matrix
I discovered what's faster than light: poop.
The other day I had to poo so bad, I didn't have time switch the light in the toilet it came out.
Poo is way faster than light.
OH please! Another expert.
Ok..for who you people make videos??i mean who understand these videos?
Can't say I enjoyed the monkey – pony analogy.
You know that you’re doing a bad job at communicating if nobody understands what you just said.
What the fuck are you trying to say!
C does not stand for causality but constant. You don't answer the question in the title.
@8:45 what about quantum entanglement??