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Joined 1 year ago
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Cake day: July 14th, 2023

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  • But how do you apply this with Lorentz’ transformation (i.e. relativistic factors)? You cannot approach the speed of light without considering relativism. It is known that p = gamma * m * v where p is momentum, gamma is the gamma factor given by sqrt(1/(1 - (v^2/c^2))), m is mass and v is velocity. If you study the gamma factor, you’ll realize that it approaches infinite as v approaches c, the speed of light. Since we are actually dealing with light here, where v = c we are breaking the equation. Momentum cannot be defined for any mass which moves at the speed of light. It’s asymptotic at that speed.

    Also note that the same goes for E = mc^2. At relativistic speeds, also this equation needs to consider the gamma factor. So those classical equations break down for light.

    The answer is that photons don’t have mass, but they have energy. There is a good explanation a bit further up in this thread on how this is possible.


  • I never cared a lot. While I do notice the difference immediately, it never makes the experience differ in the long run. I have watched full length movies on the cover screen of my Samsung Zflip5 without feeling that I missed out on anything.

    I have a nintendo switch which I have used a lot. Even though I have a nice 55" TV and a decent soundbar, I very rarely connect the switch to the TV. I much rather use it in handheld mode so I can sit in any angle in the sofa. I guess I value comfort a lot higher than high fidelity.


  • Fluent in Norwegian and English. Norwegian allows me to basically fully understand Swedish and Danish, but my mimicking/mocking of those languages does probably not count as languages I can speak.

    I also have some very rusty german education which would probably allow me to be understood, but hardly enough to have a conversation.