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Joined 3 years ago
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Cake day: June 17th, 2023

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  • Vitamin D helps if you are dealing with S.A.D (seasonal affective disorder). Basically, our brain gets to go into a state akin to hibernation. Unfortunately, modern life isn’t compatible with this. The effect is tiredness and low mood.

    SAD seems to be triggered by low vitamin D, low exposure to sunlight, and the cold. The exact trigger levels vary from person to person.

    If you’ve not tried it yet, a daylight lamp could help a lot, combined with the Vitamin D, it trucks the brain into thinking it’s still warm and bright outside. You want a hot in the morning, as well as one in the mid to late afternoon.

    Failing that, accept your need to hibernate, and plan it in. It’s not ideal, but not fighting it will also help your mood.


  • There’s a lot more to teaching than just good explanations. I do enjoy trying to explain complex science in more understandable ways however.

    As for struggling, we all do at times, pushing through is how we get better. Also science is a little like a spider web. If you look closely, at just a few strands, they don’t make obvious sense. It’s only when you build up a broader picture that it becomes obvious and easy. Building that picture, unfortunately, requires pushing through the “what the hell, I can’t make sense of this!” stage.


  • It would be a mix of relative rates and the exact energy.

    If you pick an area of “empty” space where you expect very little dark matter, you will get a baseline reading. When you aim at an area expected to be dense in dark matter, you will expect to get a higher reading. E.g. 10 counts a day, Vs 100 per day. This is basically how radiation detection works on earth, so the maths is well studied.

    The other thing is energy levels. 2 electrons hitting have a distinct energy. It will vary upwards slightly, due to kinetic energy, but not that much. We also know the annihilation energy of other forms of matter, from earth experiments. A reading distinct from anything normal would be a good signature of an unknown type of matter annihilating.

    There are also extra complications from things like red shift, but those can be measured in other ways, and corrected for.

    The order of theory and discovery also helps. “Finding X that happens to support Y” is a lot weaker than “Predicting X from theory Y, then going and finding it”. If you run 1 million experiments, a 1 in a million result is quite likely by pure fluke. A 1 in a million result from a single, focused experiment is a lot more powerful.


  • In a short summary. Something is wrong with the spin of galaxies. There is more mass than we can account for, and it’s distributed wrong.

    Either the laws of gravity are slightly wrong, or there is something out there with mass, but no interaction with other matters (light particularly).

    More recent, more detailed studies have shown that the error is not consistent. Therefore either the laws of physics vary from galaxy to galaxy (very unlikely) or it’s something physical, rather than a law error.

    That leaves dark matter, sometimes called W.I.M.Ps (Weakly Interacting Massive Particles). They don’t seem to interact with electromagnetism at all, and even any strong or weak force interaction is minimal. It only interacts gravitationally.

    We know the interactions at minimal due to gravity mapping. It seems to form a cloud around galaxies, rather than collapsing in. To collapse in, they must interact to exchange momentum. If they only interact by gravity, that collapse will be extremely slow.

    That is most of what we can be fairly sure of. There’s a lot of speculation around this, and we might be barking up the wrong tree completely. However dark matter via WIMPs seems to be the most consistent with the evidence right now.

    Edit to add.

    This experiment seems quite ingenious. It assumes that WIMPs have a mix of both matter and antimatter. Ever so often a matter/antimatter pair get close enough to annihilate. This creates a pair of gamma photons. The existence of these would help back the existence of physical WIMPs. The energy would also tell us something of their mass (photon energy = mass energy + momentum energy). That will help narrow down where to look in our particle accelerator data.


  • The type G was designed when things were designed to do their jobs. Any pain inflicted by user error was considered a learning opportunity.

    The cord coming out the bottom means the plug can’t pull out. Combined with the big, chunky plug and pins, means the cable will likely fail first if pulled. It will also fail at the live core first, leaving a safe plug in the wall.

    But yes, the foot pain is… impressive. It’s just blunt enough to not generally penetrate the skin, but it can happen.








  • It might also be a single dev who pushed for it. With only a 1-3% market share, the company is unlikely to push resources at it. That 1 dev getting any working version out is a win in many ways.

    Also, most Linux users are a lot better trained at reporting bugs. Most of the time, this is a good thing, letting them get fixed in FOSS development setups. Unfortunately, in gaming, it ends up making Linux look a buggy mess. When 60% of your big reports come from 0.5% of your users, companies can panic. Even if the same bugs exist in windows, just no one bothers to report them.



  • The series Expeditionary Force" by Craig Alanson actually plays on this.

    Spoiler to protect those who might want to read the series.

    spoiler

    The AI Skippy, (that has befriended humanity/adopted us like puppies) upgrades the weapon systems on a captured ship. Joe Bishop, the captin of said ship, gets involved to deal with a strike by the onboard missiles. They are complete homicidal maniacs, and are actually fine with blowing up, they just want the pecking order/first dibs on targets sorted out, along with entertainment rights while waiting (karaoke night invites, from memory).

    And no, after dealing with their bullshit, Joe has no issues turning the weapons into his enemies problems, very energeticly.




  • I’ll take compatible.

    Most people game on windows. It’s monolithic nature also means that they will mostly encounter the same bugs.

    Linux has a wider base of functionality. A bug might only show up on Debian, not Ubuntu.

    End result, they spend 60% of their effort solving bugs, for 2% of their base. That’s not cost viable.

    Compatibility means they just have to focus on 1 base of code. All we ask is that they don’t actively break the compatibility. This is far less effort, and a lot easier to sell to the bean counters.

    Once Linux has a decent share, we can work on better universal standards. We likely need at least 10% to even get a chance there.


  • First off, have you got HA up and running yet? That should be your initial focus.

    There are 3 main options.

    • Old laptop

    The cheapest option, but only if you have a spare. It doesn’t need that much grunt. You definitely want to check how much power it draws however. It’ll be on 24/7 and the cost of that can mount up.

    • Raspberry Pi (or other single board computer)

    This is a good “play around” option. It’s one of the cheapest choices as well. Unfortunately, Pis can become a bit unstable down the line.

    • NUC, or other mini PC. The small mini PCs are my preferred recommendation. They are powerful enough to do more complex tasks, but power efficient enough to not be problematic. They are also a lot more reliable than the SBCs.

    As for other hardware. Z wave is the best, but also more costly. ZigBee is cheaper, and still very functional. WiFi does the job, but needs a bit more planning. I personally use a mix of ZigBee and WiFi.

    If you’re buying WiFi hardware, I would try and focus on esp based options (ESP8266, ESP8285, or ESP32). You can replace the firmware in these, with either Tasmota, or ESPhome. I personally use sonoff and/or athom hardware, but there are plenty of other options.

    This might help finding appropriate hardware.

    https://templates.blakadder.com/