The Speed of Light is NOT About Light

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  • December 24, 2016 at 3:30 am #61653
    Avatar photozn
    Moderator

    December 24, 2016 at 7:29 am #61654
    Avatar photowv
    Participant

    Well, i thought that was positively awful. I didnt
    understand a word of it.

    Therefore, i think you should commit
    Hara-Kari.

    w
    v

    December 24, 2016 at 8:02 am #61655
    Avatar photoAgamemnon
    Participant

    That title is a bit misleading. I watch the videos that guy makes and he is good at explaining lots of things. What he is saying is that anything without mass has to travel at a defined(constant) speed. This is anything from information to photons. Neutrinos miss it by that much. 😉 The photon, or light, is the probably the best way to illustrate the cosmic speed limit. The infinities that he talks about, might indicate the stuff that happens with Quantum Mechanics. “Spooky action at a distance.” Which nobody seems to understand. He said nothing specifically about the speed of light or “C” being invariant for all observers, which leads to the theory of Special Relativity. Which simply means that if “C” does not change, something else must change, E=MC2, time and mass can vary, since C doesn’t. imo Also, M and E can be consider as the same thing. C is a constant.

    Did I say anything wrong or confuse anybody? That is my understanding of this physics at this time.

    Agamemnon

    December 24, 2016 at 8:33 am #61657
    Avatar photowv
    Participant
    Agamemnon wrote:

    That title is a bit misleading…..
    …. The photon, or light, is the probably the best way to illustrate the cosmic speed limit.

    ==============
    OK, so there is a ‘cosmic speed limit’. But why is there a cosmic speed limit? And i wont even ask how we know there is a cosmic speed limit and how/why it works the way it does.

    w
    v

    December 24, 2016 at 8:49 am #61660
    Avatar photoAgamemnon
    Participant
    wv wrote:
    Agamemnon wrote:

    That title is a bit misleading…..
    …. The photon, or light, is the probably the best way to illustrate the cosmic speed limit.

    ==============
    OK, so there is a ‘cosmic speed limit’. But why is there a cosmic speed limit? And i wont even ask how we know there is a cosmic speed limit and how/why it works the way it does.

    w
    v

    Short answer, nobody knows. Long answer, nobody knows.
    https://www.physicsforums.com/threads/why-is-there-a-universal-speed-limit-c-and-why-is-it-what-it-is.478947/

    Agamemnon

    December 24, 2016 at 9:13 am #61661
    Avatar photozn
    Moderator
    wv wrote:

    Well, i thought that was positively awful. I didnt
    understand a word of it.

    Therefore, i think you should commit
    Hara-Kari.

    w
    v

    Well sometimes, I post em before I watch em. And frankly that one was confusing.

    And I can’t commit Harry Carey. I think he’s already been committed.

    December 24, 2016 at 10:23 am #61663
    Avatar photowv
    Participant
    Agamemnon wrote:

    Short answer, nobody knows. Long answer, nobody knows

    ————-

    Much like the Rams offense.

    w
    v
    “Not only is the Universe stranger than we think, it is stranger than we can think.”
    ― Werner Heisenberg Across the Frontiers

    December 24, 2016 at 1:14 pm #61672
    Avatar photoAgamemnon
    Participant

    A side note, Dirac combined Special Relativity and Quantum Mechanics, electromagnetic interactions or photons or light.

    https://en.wikipedia.org/wiki/Dirac_equation

    Dirac equation
    In particle physics, the Dirac equation is a relativistic wave equation derived by British physicist Paul Dirac in 1928. In its free form, or including electromagnetic interactions, it describes all spin-1/2 massive particles such as electrons and quarks for which parity is a symmetry. It is consistent with both the principles of quantum mechanics and the theory of special relativity,[1] and was the first theory to account fully for special relativity in the context of quantum mechanics. It was validated by accounting for the fine details of the hydrogen spectrum in a completely rigorous way.

    What hasn’t been combined is General Relavity and Quantum Mechanics. General relativity is about space and time, and about gravity.

    Agamemnon

    December 24, 2016 at 2:28 pm #61676
    bnw
    Blocked

    I was sure Special Relativity were the dumbass cousins.

    The upside to being a Rams fan is heartbreak.

    Sprinkles are for winners.

    December 26, 2016 at 1:40 am #61806
    Avatar photozn
    Moderator
    Agamemnon wrote:

    , Dirac combined Special Relativity and Quantum Mechanics, electromagnetic interactions or photons or light.

    Dirac’s equation had a startling side effect. It turns out it always produced 2 solutions, one positive and one negative. Dirac realized this meant something.

    So, read on:

    —-

    http://www.exploratorium.edu/origins/cern/ideas/antimatter.html

    In 1928, British physicist Paul Dirac set out to solve a problem: how to reconcile the laws of quantum theory with Einstein’s special theory of relativity. Through complex mathematical calculations, Dirac managed to integrate these disparate theories. He explained how things both very small and very fast — in this case, electrons near the speed of light — behave. This was a remarkable achievement in its own right, but Dirac didn’t stop there.

    The equation posed a problem: just as the equation x2=4 can have two possible solutions (x=2 or x=-2), so Dirac’s equation could have two solutions, one for an electron with positive energy, and one for an electron with negative energy — an unanticipated result. But classical physics (and common sense) dictated that the energy of a particle must always be a positive number.

    Dirac interpreted the equation to mean that for every particle there exists a corresponding antiparticle, exactly matching the particle but with opposite charge. For the electron there should be an “antielectron” identical in every way but with a positive electric charge

    Dirac argued that this anomaly was in fact the electron’s “antiparticle,” the subatomic equivalent of the “evil twin.” In fact, he asserted, every particle has an “antiparticle” with nearly identical properties, except for an opposite electric charge. And just as protons, neutrons, and electrons combine to form atoms and matter, antiprotons, antineutrons, and antielectrons (called positrons) combine to form antiatoms and antimatter.

    Dirac’s equations marked the first time something never before seen in nature was “predicted” — that is, assumed to exist based on theoretical rather than empirical evidence — solely on the basis of theory guided by the human imagination. His prediction would be confirmed in experiments by Carl Anderson in 1932. Both men won Nobel prizes for their efforts.

    When the existence of antimatter was confirmed, Dirac is reported to have said “my equation was smarter than I was.”

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