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Health-threat ‘forever chemicals’ removed from water with 3D-printed ceramic ink

“Engineers have invented a new way to remove health-harming ‘forever chemicals’ from water – using 3D printing.

Researchers at the University of Bath say their method, using ceramic-infused lattices (or ‘monoliths’), removes at least 75% of perfluorooctanoic acid (PFOA), one of the most common perfluoroalkyl and polyfluoroalkyl substance (PFAS), from water, and could become an important tool in future efforts to eliminate the chemicals from water supplies.

Their findings were published this week in The Chemical Engineering Journal.”

[…]

“Testing of the monoliths has surprisingly shown they have become more effective under repeated use – they undergo high-temperature thermal ‘regeneration’ treatment after each use. This is something the researchers are keen to understand more fully with further experimentation.”

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Lemmy devs are considering making all votes public - have your say
  • If a website could be sure none of their users are malicious/bots and all of the users are perfectly rational and virtuous then public or private voting wouldn't matter either way. That being nearly impossible, why not a reputation based system like Stack Exchange? Only when an account meets certain requirements they can vote.

    To boot, on the website tweakers.net one can actually vote -1, …, +3.

    • +3: “Spotlight comments are of such high quality and substantive value that they clearly stand out above the rest”
    • +2: “Informative and interesting comments that are a useful addition to the discussion in an on-topic thread or the information in the article”
    • +1: “Nice on-topic responses with knowledge that is common knowledge”
    • +0: “Comments that do not contain a relevant contribution, but are posted with good intentions”
    • -1: “Flamebaits, trolls, misplaced jokes, unnecessarily hurtful comments and other comments that violate our terms and conditions or house rules”

    [Posted this comment on GitHub.]

  • Proton is transitioning towards a non-profit structure | Proton
  • A hammer is a tool because no one but the hammer merchants gain financially if everyone were to buy a hammer. Crypto“currencies” are not purely tools but instead multi-level marketing pyramid Ponzi schemes because as soon as one has it they have everything to gain the more people buy it after them.

    “Thirdly, early adopters mine or buy large proportions of the total supply at negligible costs while late adopters mine or buy negligible proportions at large costs. It follows that holders immediately have every incentive to get as many people to buy after them. Like stocks? Like stocks, but without the dividends or anything tangible in the real world [10]. Congratulations, you got yourself a pyramid scheme †.”

    “† The stock market has largely become a pyramid/Ponzi scheme as well since most of the money does not exist and profits come from buyers or new entrants, i.e., the greater fool [16].” —Money corrupts; bitcoin corrupts absolutely, https://www.cynicusrex.com/file/cryptocultscience.html

  • Proton is transitioning towards a non-profit structure | Proton
  • It gives credence to greed incentivizing unethical contraptions.

  • Proton is transitioning towards a non-profit structure | Proton
  • Immoral baskets that incentivize greed are to be avoided.

  • Proton is transitioning towards a non-profit structure | Proton
  • Then they should transition away from multi-level marketing pyramid Ponzi schemes too. I deleted my Protonmail account when Proton began peddling crypto“currencies”.

  • Should one remove all Reddit posts and comments?
  • What does the acronym SO stand for?

  • How to block AI Crawler Bots using robots.txt file
  • Lies, as in that it's not really “blocking” but a mere unenforceable request? If you meant something else could you please point it out?

  • Should one remove all Reddit posts and comments?

    Do the advantages of deleting one's entire Reddit history outweigh the disadvantages?

    I have previously nuked my first Reddit account because it felt satisfactory to be completely detached from a platform one considers unethical/bad. Though, I have garnered quite some history on a second account—because Duty Calls*, of course—and I'm considering doing the same.

    However, I don't want to do it impulsively. I think I might be blind to some disadvantages. What do you think?

    *!

    47
    How to block AI Crawler Bots using robots.txt file
  • Unfortunate indeed.

    “Can AI bots ignore my robots.txt file? Well-established companies such as Google and OpenAI typically adhere to robots.txt protocols. But some poorly designed AI bots will ignore your robots.txt.”

  • How to block AI Crawler Bots using robots.txt file
  • #TL;DR:

    User-agent: GPTBot
    Disallow: /
    User-agent: ChatGPT-User
    Disallow: /
    User-agent: Google-Extended
    Disallow: /
    User-agent: PerplexityBot
    Disallow: /
    User-agent: Amazonbot
    Disallow: /
    User-agent: ClaudeBot
    Disallow: /
    User-agent: Omgilibot
    Disallow: /
    User-Agent: FacebookBot
    Disallow: /
    User-Agent: Applebot
    Disallow: /
    User-agent: anthropic-ai
    Disallow: /
    User-agent: Bytespider
    Disallow: /
    User-agent: Claude-Web
    Disallow: /
    User-agent: Diffbot
    Disallow: /
    User-agent: ImagesiftBot
    Disallow: /
    User-agent: Omgilibot
    Disallow: /
    User-agent: Omgili
    Disallow: /
    User-agent: YouBot
    Disallow: /
    
  • How to block AI Crawler Bots using robots.txt file

    63
    ‘Bumble fumble’: online dating apps struggle as people swear off swiping
  • Had it happen to me too. They'll refund you for this. Just be polite when asking for it.

    My review on the Play Store: “Premium is a scam. Hides likes which come from all over the world (clickfarms?) even though I set my radius to 5 km. But of course they only show you the fake likes (all of them) after one pays for premium.”

  • Organic Maps is the best open source Maps App I've ever tried
  • Thanks for the share, had no idea. It felt so nice that I already added two contributions to OpenStreetMap.

  • Google pulls the plug on uBlock Origin, leaving over 30 million Chrome users susceptible to intrusive ads
  • “What's a browser?” —the general populace

    I just install uBlock Origin on every device I come across. Graffiti software.

  • Elon Musk draws fire for playing down impact of America’s atomic bombing of Japan: ‘Not as scary as people think’
  • I can't disagree with what you quoted, nor state that it is a good argument—it isn't, as was already pointed out and which I do agree with. I'm emphasising that they are not saying “the bombings were not as bad as people think”.

  • Elon Musk draws fire for playing down impact of America’s atomic bombing of Japan: ‘Not as scary as people think’
  • I'm just addressing the fuss that's being created. They are clearly not saying “the bombings were not as bad as people think”, but the headlines and articles make it seem so.

    By doing this we are using the same spurious tactics as they are. Inundating people with blown out of proportion news like this will desensitise them to step into action when it will actually be warranted—the boy who cried wolf.

    They spew tons of misinformation/disinformation/fallacies that should be addressed instead.

  • Fitness and Health @lemmy.ml Cynicus Rex @lemmy.ml

    Fever Feels Horrible, but is Actually Awesome! - Kurzgesagt

    “Fever feels bad. So we take medication to suppress it – but is this a good idea? It turns out fever is one of the oldest defenses against disease. What exactly is a fever, and how does it make your immune defense stronger? Should you take a pill to combat it?”

    Sources & further reading: https://sites.google.com/view/sources…

    0
    42 Years old and look like Homer Simpson. Should I try skateboarding and, if I do, how long should I try before deciding whether or not to give up?
  • Wear protection and do daily exercises that strengthen your overal physique. If you indeed practised Brazilian jiu-jitsu then you already know how to fall, therefore you're less likely to be hurt by trivial stumbles that would hurt other beginners completely new to any kind of intensive sport.

  • Elon Musk draws fire for playing down impact of America’s atomic bombing of Japan: ‘Not as scary as people think’
  • Fair point. I should've made the distinction. But in any case, nuclear power plants aren't bad.

  • Elon Musk draws fire for playing down impact of America’s atomic bombing of Japan: ‘Not as scary as people think’
  • Not defending these two unethical bullies in general, but on this particular paragraph they are totally taken out of context. It is obvious that they are not downplaying the atrocities of Hiroshima and Nagasaki but merely stating that nuclear energy is not bad since people are already living there again.

  • The Supreme Court Should Be Ashamed for Criminalizing Homelessness.
  • “I see you have no apple, therefore you owe us an apple.”