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Cake day: June 12th, 2023

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  • Thorry84@feddit.nltoScience Memes@mander.xyzWhy?
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    1 day ago

    I once went down the rabbit hole of thinking about how the targeting works on the TNG kind of transporter. Like they need to know to the molecule where your body ends and the rest of the universe begins. And you want it to identify clothing, because you don’t want to end up nude on the other side. Plus it needs to identify what creepy crawlies are a part of you and which were just randomly wandering by. We don’t want any of those pesky Fly problems now do we? This might sound easy, but is actually extremely hard. The human body is very complex and like a ship of Theseus what is part of the body is a bit nebulous and can change. All of the microbiome in our gut is essential for us to stay alive. And more importantly we don’t want to leave behind a puddle of crap every time we transport. Plus what happens if we come out the other end, do our intestines just implode? Or does the transporter fill them with air, leaving you to fart uncontrollably until you die?

    And how does it know what clothes are? If I’m wearing shoes, does it know where the shoes end and the floor starts? What if I’m wearing skies? What if I’m barefoot on a carpet? What if it’s a leather carpet? What if I’m wearing shoes made by folding carpet around my feet?

    The only thing that makes sense is a super powerful AI system that can real-time scan every molecule and figure out what’s what. And it doesn’t only need to be smart, it also needs a lot of real world knowledge. It needs to know what is “logical” to include in every situation. This means it has to be an AGI, has to be superintelligent (at a minimum speed wise) and would most likely be sentient. Them being used for this one and only purpose is really cruel.

    This leads me to the conclusion TNG style transporters are basically slavery and put a whole different spin on the morality of the people in that universe. Thank you for coming to my TED talk.



  • I’ve had great experience with Axis in the past. However in the past they used to have planned obsolescence where the flash they used had a very limited number of write cycles. With the Linux based OS they run it writes to the flash all the time. This would cause the thing to start dropping writes and misbehave. When ran 24/7 they usually died after about 4 years. The place I worked at just threw them away and replaced them whenever that happened, to not have downtime for cameras. Once I asked if I could have a couple to diagnose the fault and I found out the flash was out of write cycles on all of them. Maybe they are better nowadays, but it was pretty fucked up to see such expensive cameras be destroyed because of a few cents of flash.





  • Thorry84@feddit.nltoScience Memes@mander.xyzStars
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    8 days ago

    Honest question: Do people think stars look like the star shape because of diffraction spikes in refractor telescopes? I thought the star shape pre-dated any refractor telescope. And I don’t know how many people would have seen refractor images back in the days to make it so culturally engrained?

    The post-processing used in astronomical observations is a really interesting topic. I’m following the debate around the black hole images with great interest. I don’t know enough about the specifics to have an opinion, but it is very interesting and has overlap with some of the things I do for work.


  • This is usually done to keep things going as normal as possible for as long as possible. Once people start noticing something is wrong, the best people start looking elsewhere. Before you know it, not only is the company in financial trouble, but it can’t recover because some of the best people left. At least one time I witnessed, the company was working on layoff plans and even limited bankruptcy, but at the same time negotiating with the investment firm that owned part of the company to get more money. If they got the money, everything would be fine. It wasn’t till that fell through, they had to start laying people off.



  • Depends what you mean by “use”.

    The Americans are the only ones to have used them in terms of destroying enemy assets (and sadly in that case it was used against civilians). But as a deterrent it’s been used by a LOT of countries all around the world and is still being used for that purpose right now.

    An argument could be made the Cold War could have been an all out world war if it weren’t for nukes, with the short peace after WW2 be considered just a break and not the end.

    I hope nukes won’t be used, but Ukraine is in trouble and if they are backed into a corner and facing destruction who knows what they will do. Same could apply to Iran before long, if they have the ability to get nukes somehow, it might be their only hope. Just please let it be as a deterrent and not actual nuclear war.



  • That’s because of the way these scales work. They use a material that deforms under stress and when it deforms the resistance changes. By putting current through this material and measuring the voltage drop, it can be mapped to how much stress the material is under and thus how much weight is on the scale.

    This is a pretty roundabout way and has a lot of caveats, but it is very cheap. So cheap scales always work this way. That’s why they aren’t super accurate and have deviations depending on things like temperature. Another big downside is any permanent deformation ruins the calibration, giving incorrect results. That’s why you never put more weight on kitchen scales than it says, it will break them.

    The issue you are running into is the way it measures. It applies a very specific voltage and current in order to get the result. The lookup table it uses is only valid within a narrow range. When the battery voltage goes outside that range, it can no longer perform the measurement. Even though there’s plenty of juice for things like the little processing chip and the LCD display. They don’t need a lot of power and can do with low voltages. But it can no longer weigh anything so it just errors out with a low battery warning.


  • I liked late seasons Neelix. I hated his last episode though. Like really? This is the best you can come up with? Somehow there is another set of Talaxians all the way out here. And Neelix just so happens to run into them? And be similar enough in culture to live among them? Can we just get a calculation on the odds of that happening? And Neelix is somehow fine with being left behind? Left behind from the only family he has had for years? People he spent all this time helping out getting home, only to bail just before the finish? Because of the power of boners? Bullshit.

    In my head canon that episode simply does not exist.


  • Most people who are fed up with Microsofts crap simply don’t buy a new computer anymore. They just do everything on an iPad (maybe pro) or similar without Windows. Gamers switch over to consoles, with Nintendo and Steam deck being preferred. Those things may run Linux like the Steam deck or another non Windows OS, but the user won’t notice or care since they don’t interact with it.

    The time of the desktop and to a lesser extent the laptop has come and gone. It’s only for enthusiasts and people at work. At work people probably just use the same couple of apps or even just a browser with a webapp and never really interact with the OS. If it’s even a full computer and not a thin client connecting to a virtual desktop environment. People don’t know or care about OSes. Maybe they’ll bitch about Windows at times, but they bitch about a lot of things at work and they have no influence over any of it.



  • Thorry84@feddit.nltoTechnology@lemmy.worldHas SpaceX Done Anything NASA Hasn't?
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    23 days ago

    Well there’s the stuff I personally dislike. Like the Elon cringe skits she does, or the super weird uncanny valley face filter.

    But the biggest issue is she didn’t stay in her realm of expertise. She might know a lot about certain things, but then also talks about other stuff with the same level of authority. No caveats, no this is my opinion, she present it as fact. But the fact is she is really really wrong about a lot of shit. And just mixing and matching shit you know and shit you don’t know is a big no-no in science communication.

    One of the most egregious thins she did was make a video about trans folk and talked about it like it’s a fad or even a disorder. She was not only factually wrong, she was spouting anti-trans propaganda. When called out she kept the video up and didn’t do anything like a follow up, correction or apology. She has some really boomer views about a lot of things and then presents it like it’s fact. Another panned video was the one about neurodivergence (autism) and there are more like that. There are multiple hour+ video essays about how she is wrong in these cases and they are worth a watch imho.

    The annoying thing is, I don’t really know what she actually does know. Because she mixes everything and doesn’t stay within her knowledge base, now everything is suspect. So even the videos about physics where I think she does know what she’s talking about, I can’t trust. And even in physics it seems like she’s very hit or miss, I spoke to somebody at a party once that did his PhD on one of the physics topics she covered in a video. He said she was like 10 years behind the times and was wrong about several key facts. Some of these were just wrong because of simplification, which might be excused given the format, but others were plain wrong. Now I don’t know enough about the subject to make a judgement, but the dude I spoke to seemed to know what he was talking about.

    Science communication is really really hard and it’s a skill not a lot of people have. Look at how big the teams of researchers at for example Kurzgesagt are and even they mess up once in a while. But when they get called out, they go back and delete the video or better yet post a follow up or recently even a replacement video. And they qualify things with sources and caveats, mentioning which parts are fact, consensus, speculation and opinion. They also make it very clear at the beginning of the video what a viewer can expect. That way we can qualify the information and know what in what light to put the information presented. Now I realize Kurzgesagt may be one of the best channels when it comes to short form YouTube video science communication out there and it isn’t fair to hold everyone to that standard. But there needs to be at least some level of due diligence involved imho.

    I’m sure I left out some other stuff, there is a lot to find if you look for honest critique. I’m sure there’s also a lot of unwarranted hate out there, but also a lot of stuff that’s warranted.



  • Thorry84@feddit.nltoScience Memes@mander.xyzEat lead
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    23 days ago

    And the fun scientific counterpart of the Boltzmann brain. The idea that in an infinite universe (at least in a couple of the spatial dimensions if not also a time dimension) random fluctuations could combine to form your brain. Including all of your memories, thoughts, hopes and dreams. You think you have had an entire life, but in reality your brain was just formed moments ago. And it may possibly stop existing in a few more moments, this moment being the only one the brain has actually experienced.

    When taken to its natural conclusion, the entire Earth of even the solar system or galaxy might have just been created by random chance. The perfect storm of randomness. It may have been created longer ago or just nanoseconds before now. There is no way of telling.

    Thermodynamics has been used to counter and strengthen this idea. And with infinity on the table anything goes.



  • This thing was in geostationary orbit, that’s a long way away where there is no atmospheric drag. There’s also very little orbital debris there because there is less stuff launched that far out and the orbit is much bigger, so the chances of a collision are vanishly small. Temperatures are an issue, but this thing lived out there for years, so it probably was designed pretty well for that. Same with unexpected movement, any leaks or software errors would have presented way before now.

    Something like this breaking up is very strange. It could be a software patch that went wrong and sent the thing tumbling, but there are usually a couple of safeguards against such a thing. Plus any recently patched satellite is monitored very carefully.

    So either an extreme fuckup or some kind of foul play. This could be a test of a satellite weapon, a deliberate sabotage for some reason or a software patch that went very wrong. It could also just be extremely dumb luck with it hitting some kind of debris or piece of rock, but like I said in geostationary orbit that’s not likely.

    Edit: I just read this thing has had issues early in life, so it might be related to that. So that makes malfunction likely.


  • Yeah I’ve had that one happen. Big team, more than a year of work, thousands of hours, over 1500 of my own hours. Internal presentation to the team at the customer end, they loved it and couldn’t wait for actual launch day. We were all so proud and everyone was happy.

    Alas that day never came, the customer went bankrupt due to one of the investors pulling out. Nothing to do with us, just some bean counter did the math and decided they were better off letting the company fold.

    I spoke to one of the people at the customer we had worked with throughout the project. She was devastated it was all for nothing and she lost her job as a result. By the time a new investor came around to pick up the pieces, she had found a new job. Spoke to the former ceo of the customer, he had a new job for a couple of days a week at the company that bought up the remainders. He fought to get the project going again, but the new company is very non IT focused, oldskool. So they vetoed it. I later found out one of the project leads was consulted and he had pretty much killed any chance. I always disliked that dude, but he got a pretty good deal out of it or so I’m told.

    That’s just the way the cookie crumbles sometimes.