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Cake day: July 26th, 2023

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  • So according to your other comments this is a problem with your Chinese car simply being shit at driving slow? And you know that based on experience with your previous car? What exactly is the comment supposed to tell us? While I still find it unrealistic that you can not simply drive slower with that car, even if I accept that we know it is specifically an issue with that car. Who else drives such a shit car? Will they update their car to allow smooth slow driving? Who knows, but the legislature sure should not care about such nonsense when lowering the speed limit to make spaces saver.












  • The heat radiation is actually significant, but still stupid for data centers (high power density).

    Those particles flying around are very easily many many orders of magnitude hotter than 20’000 K/°C/°F. To convert average kinetic energy to temperature via the kinetic theory of gases: T = 2E / (3 * k_B) k_B​ = 8.6E-5 eV/K So roughly T = 7736E Example with 1 TeV: 7736 * 1 TeV (1E12) = 7.7E15 Kelvin

    Even solar wind is ~1’000 eV and thus well above 1 million Kelvin. Wiki has a nice graph of amount of particles vs. their energy here: https://en.wikipedia.org/wiki/Cosmic_ray

    1 TeV is almost completely to the left of that plot and there is about 1 such particle every second per m². At the right side, around once per km² per year, with 1E19 eV the “temperature” is about 1E23 Kelvin. One(!!!) such particle has dozenz of Joules in energy.