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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.





  • We have the same with EEA (european economic area, that part of EU which norway is a part of). It’s EØS here. It makes it convoluted to discuss, especially since EEA is mainly brought up in international subjects. And the actual words behind the acronym is never brought up, so the acronym serves mainly as a name, making the differentiation even more useless.


  • Norway has a weird obsession with making translated acronyms for well established terms. Lately, after many years of use of “AI”, the Language Council decided that the term should be changed to “KI”, as that is the “correct” Norwegian acronym. Not only does it feel wrong to say, but it invades another local acronym for me.

    To top it of, that council decided to make “KI-generated” the “word of the year”, which seems like a pat on their own shoulder to brilliantly making the acronym.

    I hate it.






  • I visited my parents last weekend. They have s printer which has a wave light signal in standby - gradually switching from off to strong light and back. What my parents probably never noticed was the high pitch loud screech which followed the light. I guess the pitch was too high for my parents to hear, but not for me. So whoever designed that can go fuck themselves.