I mean no harm.

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Joined 2年前
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Cake day: 2023年7月4日

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  • I’ll just comment about one thing that keeps popping up in the discussions: grid-level storage. There is no such thing yet really that would last a full day cycle, and the 100MW or so units we are building are mostly for frequency stabilization and for buying enough time to turn on a base-load plant when the renewables drop out. I’m not arguing against storage - it is absolutely needed.

    The problem is the scale, which people don’t seem to get. Largest amount of energy we can currently repeatedly store and release is with pumped hydro, and the locations where this is possible are few and far between. Once the batteries reach this level-of-capacity, then we have a possibility to use them as grid-level storage that lasts a few days instead of hours.


  • JATth@lemmy.worldtoScience Memes@mander.xyzIt's the law!
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    1か月前

    Send it through the earth, you can reduce it theoretically to 42.5ms

    This isn’t as ridiculous as it sounds and you just need a neutrino-beam… which has a horrible bandwidth (of 0.1 bits/s) plus the ridiculous upfront cost of running two particle-accelerators for a full-duplex link. (Google it up, this exists.)




  • I recently deleted my +10y (cant remember anymore how old it was) old account. I had not logged in with it since the first exodus.

    In my time, I started from the old reddit, saw the changes to more modern UI twice. I “collaborated” with the pixel art canvas event. (twice?) (last was fullout among us dithering) And finally saw the full revolt against spez that ended my journey there. (plus the complete enshittification of the reddit app)






  • JATth@lemmy.worldtolinuxmemes@lemmy.worldWe are not the same
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    4か月前

    Arch maintenance: 0. Install it once. (The proper way)

    1. Every 2 weeks minimum pacman -Syu
    2. Every 3 months merge/update configs in /etc.

    I don’t get what is with this so hard? Yes, configs can be undecipherable but 90% time the merge involves just deleting the .pacnew versions.




  • MSRs have negative temperature reactivity coefficient and outlet temps around 700C at atm pressure. PWR is at measly 300C and 150 Bar.

    If all control is lost, the salt expands as it heats up pushing the expanded volume out from the reactor core. The fission stops once the fuel is leaves the core region where the moderator is. Reverse is also true: you pull heat off from the loop, so the fuel-salt becomes denser, increasing reactivity. MSRs can naturally “follow” the load, if done right.