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1 yr. ago

  • The kid jumped onto traffic in front of the car? No crosswalk, traffic light or anything. They were walking alone with the permission of their parents. The parents should be liable for the trauma caused to the driver.

  • Yeah when I was seven my sister and I would travel laying in the backseat of the car, no seatbelts, with four adults in a car legally limited to five occupants, and they would smoke inside (rolled down the windows at least). I'm alive, and so is my sister. That doesn't mean it was alright and we should keep on doing it.

    Parents are supposed to teach their kids to navigate the world and be sure they've learned before letting them loose into traffic, which these people didn't do. Also unloading the responsibility on the older sibling(s) is something that have to stop, a ten years old shouldn't have to carry that burden, imagine the guilt and trauma of that poor child.

  • Work and tobacco. Both have been said but it's worth repeating. Awful stuff, steer clear of them. In fact I still do it to my body, quit tobacco for three years but went back a few months ago, not completely unrelated to work-induced stress I would argue. Also getting closer to forty physical work gets more and more punishing, compounding on all the past mistreatment.

  • I know it's a matter of taste but I like sidewalk tiles, either concrete or granite, much better than bricks.

  • Sorry if I didn't explain correctly. Holding the camera is not considered terrorism. As I said is legal (but sharing the recording is not), but the police can tell you to stop recording and take your device, also legal. Once they're not being recorded, if they beat you up (high probability specially if there's not many people around) they'll justify it by saying you attacked them first, which is the part that can be considered terrorism.

    I haven't seen, personally, this happening for recording them, but I have for other things like trying to stand by your rights during a search, intervening when they where harassing someone, asking for their badge number (legally should be visible, and they have to tell you if not. But usually doesn't end up well)... This is Spain, but I've heard stories about the Italian, French, German, many east European countries'... polices and they doesn't seem much better.

  • Good advice, but check the local laws first–it's illegal to film cops in my country for example.

    Edit: I didn't mean 'don't do it', I meant 'be very careful while you do it'. Also, while technically legal to record them, the law also says that the police can make you stop recording and take your device from you. Then, in practice not in the written law, they will beat you and throw you in jail for a couple days accused of attacking a law enforcement officer (which usually carries charges of terrorism), the judge will find you guilty since police have something called 'presumption of veracity' here (maybe not if your rich enough idk, all the people I've seen in this situation were poor). This is all in an EU country. Stay safe out there, pigs are dangerous everywhere.

  • Sounds like a good plan, I'd seriously consider a Canarian accent if I could pick mine!

  • Why is the word Israel, consistently through the whole site, between quotes?

  • Does someone actually know how to turn this off on android? My work phone does this all the time. It's a car! I was looking at that map under that modal and trying to listen to the directions you reduced to a whisper thank you very much!!

  • That's an excellent question, and like most excellent questions I think the answer is 'it depends' but I would bet for 'yes'.

    First, 'noise' is a part of the signal we don't want or we don't care about. In op's example they talk about 'two servers' one quieter and another louder. The sounds of these sources is the part of the signal we care about so the sound of the louder server isn't noise in any case. As long as the sound of the quieter server rises above the noise floor and the recording device have the dynamic range to record the sum of the sounds you should be able to 'measure' it (as in pointing to differences in the readings when you turn it on and off) and maybe cancel the other server to some extent by processing it.

    Now to this point is a yes but 'it depends' because while the sound of the louder server isn't noise it can rise the noise floor depending on the acoustics of the server room. Some server rooms have lots of reverb and echo, specially when they're not very full, but in my experience most don't, many put these plastic curtains to contain the AC and they dampen sound reflections pretty effectively. But with bad enough acoustics, a very loud 'loud server', and a quite quiet 'quiet' one the sound floor could rise over the quieter server sound.

    Disclaimer: this is from the top of my head, I'm tired and not a hundred percent sure this is correct. Don't take any important decisions based in my autistic rambling.

  • Others have commented on the physical process of interference, waves add up but also cancel out. But the server sound 'disapeaearing' is not caused by interference, in fact it doesn't disappear at all. It's a phenomenon called 'masking' caused by your auditory perception. Louder or lower sounds mask quieter or higher pitched sounds.

    Edit: and to add a bit to the answers, natural sound sources add up more than they cancel out on average, so it will get louder the more sources you add. But sound pressure level is also inversely proportional to the squared distance, so there's a limit to the max db you can get just adding more similar sources, with a higher limit with higher source density, ie the closer to each other you put them. I leave the formula for this as an exercise for the reader.

  • I guess it's a stylistic choice to express emphasis instead of using italics or bold text.

  • Yep I know. These are the ones the company buys. I've tried others when I had to buy a box while out and about but n a hardware store or even a supermarket. Latex gets destroyed very fast, I didn't notice much of a difference with vinyl.. but you are right I have to try if some other material goes better. The thing is I don't have a clue what the fuck they put in the inks and nobody seems to be able to tell me.

  • I sincerely doubt these newcomers can achieve at their first try what well established manufacturers haven't through revision after revision of their machines. The price is the first clue, flatbed uv printers this size start at about ten thousand. Also, important information like which printhead they mount, printing speed (m2/h), uv lamp wattage.. is missing which is suspicious at best.

  • No. Let's say you and I start each one a stopwatch at the same time here on earth. Then you get in your spaceship and travel the 8 years at light speed, get back to earth and land your ship. When you get out and we put the watches side by side mine shows 70000+ hours while yours the couple minutes it took you to get on and off of the ship.

  • Not at all like a resin printer. Imagine a hybrid: the top part is an inkjet printer with a printhead that goes side-to-side shooting ink but instead of paper sliding under it there's a flatbed not unlike the one in a filament 3D printer. The ink is cured by a uv lamp (or more than one, but I suspect this printer has only one and very small and weak since the smaller lamp I work with costs more than this hole printer) usually fixed to the side of the printhead 'carriage'.

  • No. Just don't! You nerds, tinkerers, hackers, makers... listen to me: DO NOT BUY THIS.

    I didn't think I'd have to read the words 'Consumer UV printer' ever. It's just a deranged concept. UV printers are the worst kind of machines there are. Imagine an inkjet printer but a thousand times worse, I'm not joking. I work with these, but professional/industrial ones, in professional printshops, and they are an absolute toothache for my customers (again, professionals that make a living with printers and similar equipment). The customers like me, because I'm the one solving them problems (even if the bill for the solutions is more often than not a few thousands) but I'm sure the salespeople look under their cars every morning.

    This will only be a hole in your pocket, a piece of junk taking up space in your home, and even a hazard to your health or your kids' or pets'–UV ink is some nasty shit before curing, some of them make my hands itch even trough the nitrile gloves, and you have to handle and dispose of the waste ink properly ie hiring some waste management service.

    It's true that you can make beautiful things with them, but for a home it's just not worth it, just take your designs and your media (the things you want to print on) to a print shop and have them printed there.

  • I'm not saying I agree with the other commenter, specially in the tone, but... where do you think the copper inside your walls comes from? Is this a NIMBY or are you proposing we abandon electricity altogether?

    Mining is super messy, all of it. For the environment, the people living in surrounding areas, the workers... I think it was just yesterday I read an article about copper mining in Chile: polluted waterways, lots of orphans when a mine collapsed, people sick, others displaced from their homes... you know real actual problems, not some superstition.

    Couldn't we get the copper without fucking so many people so bad? Certainly, but that would affect profits so it's not happening.

  • You are right, it was an oversimplification, 25% is hardly a 'rare exception'.

    In my defense I have to say that it was late, I was already in bed, and very sleepy. And I knew that, this being lemmy, some other nerd would come with a more thorough explanation.