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Would this even work?
  • If you rotate the hinge to angle X above the horizon, light coming in from an altitude angle of 2X (=zenith angle of 90deg-2X) will get reflected to into horizontal rays inside the tube.

    So you don’t need a mount with adjustable altitude angle - the hinge accomplishes that.

  • Proof by fucking obviousness
  • Yeah, the four color problem becomes obvious to the brain if you try to place five territories on a plane (or a sphere) that are all adjacent to each other.

    I think one of the earliest attempts at the 4 color problem proved exactly that (that C5 graph cannot be planar). Search engines are failing me in finding the source on this though.

    But any way, that result is not sufficient to proof the 4-color theorem. A graph doesn’t need to have a C5 subgraph to make it impossible to 4-color. Think of two C4 graphs. Choose one vertex from each- call them A and B. Connect A and B together. Now make a new vertex called C and connect C to every vertex except A and B. The result should be a C5-free graph that cannot be 4-colored.

  • use firefox to avoid being sus

    https://lemmy.smeargle.fans/post/220300

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    Power supply proje
  • Did you choose components and plan the connections on the perfboard yourself?

    Also what was the original like? Would things work if you replace for example the transformer input side either the new kit and keep the output side the same?

  • To what extent, if at all, would have CrowdStrike's faulty update have been easier to deal with with an immutable distro?
  • Anything that’s updated with the OS can be rolled back. Now Windows is Windows so Crowdstrike handles things it’s own way. But I bet if Canonical or RedHat were to make their own versions of Crowdstrike, they would push updates through the o regular packages repo, allowing it to be rolled back.

  • Furi Phone FLX1: Debian smartphone debuts • The Register
  • It’s already delivered - a Mastodon user got one.

    But getting an OEM to make a phone under your brand is easy. The real question is how long will they keep the software maintained?

    These people seem like passionate Linux enthusiasts, so one can hope.

  • Malicious KDE theme can wipe out all your data

    cross-posted from: https://lemmy.ml/post/13397700

    > Malicious KDE theme can wipe out all your data > > Or is it just buggy?

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    InitialsDiceBearhttps://github.com/dicebear/dicebearhttps://creativecommons.org/publicdomain/zero/1.0/„Initials” (https://github.com/dicebear/dicebear) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)WI
    wisha @lemmy.ml
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