Close Menu
    Wissenschaft

    Physiker haben einen ultrastarken Magneten hergestellt, der in eine Handfläche passt und ein Magnetfeld erzeugen kann, das mehr als 800.000 Mal stärker ist als das der Erde.


    Physiker haben einen ultrastarken Magneten hergestellt, der in eine Handfläche passt und ein Magnetfeld erzeugen kann, das mehr als 800.000 Mal stärker ist als das der Erde.

    https://www.nature.com/articles/d41586-026-00851-y

    View 22 Comments

    22 Kommentare

    1. Melenduwir on

      Sounds terribly unsafe. The magnets used in MRIs have caused many deaths when people accidentally or negligently brought ferromagnetic substances close to them.

    2. no_choice99 on

      If the Earth’s B field is about 40 μT then this means they have a magnet of about 32 T in their hands.I guess it’s microscopic?

    3. LitLitten on

      Earth’s magnetic field isn’t actually that intense or powerful. It’s just very large. I’d argue It’s more impressive that even despite the low strength it’s enough to block a lot of solar radiation. 

      A fridge magnet is 100x stronger. 

    6. UltracrepidarianPhD on

      So if they produce enough of these I can stop worrying that 2003’s The Core will become reality?

    8. CaptainCrowbar on

      Just because you can fit it in the palm of your hand doesn’t mean it’s a good idea. People are already advised not to hold modern rare earth magents in their fingers near anything metallinc or another magnet. This one sounds like it would break every bone in your hand.

      tl,dr: „It would also set your hair on fire, so don’t actually do it.“

    10. RockMaul on

      Maybe technology like this could be used on manned Mars missions to shield astronauts from cosmic radiation.

    12. notislant on

      As a neat feature it will also fit through your hand when close to ferrous metal.

    14. erictank on

      Neodymium magnets already make my hand feel odd, can’t imagine holding something with an even stronger field.

    15. narcisian on

      Since I’m too cheap to pay for the article, I googled it and if the AI summary is to be believed, these magnets don’t require rare earth minerals which makes them a much bigger game changer.

    18. CMG30 on

      This means stronger and lighter electric motors as well as more efficient generators.

    21. PunxsutawnyFil on

      This will be the key to defeating the clankers when they enslave humanity

    22. scyyythe on

      The paywalling of science is truly out of control. Opening this link I am not greeted with a press release or even an abstract. I can see *one sentence* before the invitation to subscribe pops up. No details of the technology or the underlying physics, no information about the research team, nothing. „Physicists did something amazing, now give our parasitic journal company your subscription money.“

      But if you’re observant you can find the link to the paper hidden at the bottom:

      https://www.science.org/doi/10.1126/sciadv.adz5826

      It’s a miniaturized cuprate superconductor electromagnet. 

    Leave A Reply