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DigitalMus

@ DigitalMus @feddit.dk

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Joined
3 yr. ago

  • TIL that all of the world's 500 most powerful supercomputers run on Linux.

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  • Well you're not half wrong, at least the LUMI supercomputer, current nr. 9, runs Cray SUSE Linux Enterprise Server with minimal kernel daemons to reduce OS jitter on the compute nodes.

  • Japan har næsten 100.000 borgere over 100 år. Opskriften er sund kost, motion og ... mening

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  • Nu er det ikke fordi jeg har lyst til at skyde ned på positive nyheder, da vi ikke har nok af det i forvejen. Men for at have et lidt mere nuanceret billede, så er det godt at vide at der også er studier der tyder på at disse "super centenarians" er korreleret med fattigdom og kort gennemsnitlig levealder, og det store antal af ældre muligvis skyldes alders- og pensions bedrag. https://www.biorxiv.org/content/10.1101/704080v3.full

  • Product ownership 101

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  • Why not both?

  • New quantum breakthrough could transform teleportation and computing

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  • You need to know which basis the sender use to collapse and measure in the same basis. Then you need to sample a statistical distribution and the desired information will be the average of the distribution. This is very well proven in the Bells inequality experiment and can definitely be used to gain information.

    It is clearly not very efficient in the sense a lot of transported bits are wasted to convey less information. But the advantages of instantaneous and secure communication will be worth it in some use cases.

    That is, of course, if the engineering issues such as quantum repeaters (a sort of range extender) and high fidelity storage are properly solved. It is a few years ago since I did any quantum information in uni, so I don't know what the current state of things are.

  • New quantum breakthrough could transform teleportation and computing

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  • For using the quantum teleportation algorithm you first have two establish entangled qubit pair, with one photon at the sender and one at the destination. This process does take the distance over speed of light amount of time. The trick is that you would pre-process this, and decide later when to and what information to encode into the qubit, allowing for "instant" information transfer. Naturally, this requires that you have a very good memory device that keeps the fidelity of the entangled qubits.

  • Your guide to finding a new Search Engine service and supporting European companies!

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  • Not a search engine, but last week I learned of the European Open Websearch project, which builds a new free and open search index. It should already be ready to try out. Hopefully we will see some search engines implementing this soon.

  • USA asks Denmark for help in the egg crisis | Sweden Herald

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  • From the Danish media: https://nyheder.tv2.dk/business/2025-03-14-usa-beder-danmark-om-hjaelp

    There are a few additional points

    • Multiple European countries have gotten similar requests, not just Denmark
    • American egg policy requires washing the eggs while European policy prohibits this, making it highly inconvenient.
    • They would want assurance that America won't suddenly put tariffs on the eggs.
    • If america were to pay upwards of 1€ per egg, maybe they'd have a deal.

  • openSUSE Spin Achieves 100% Bit-Identical Packages For Reproducible Builds

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  • Thought I would mention Guix. I don't know about using it as an OS but just the package manager is so nice to build reproducible software environments (although disclaimer I discovered this myself a few weeks ago). At least as close you can get without including proprietary hardware drivers. Building MPI applications on my laptop and moving them to an HPC cluster with full performance feels like magic.

  • Seeking input on .io ccTLD removal

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  • I quite like .ion or .iot

  • xkcd #2981: Slingshots

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  • What about HPE slingshot? This list is clearly incomplete.

  • How light can vaporize water without the need for heat | MIT

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  • The sun's spectrum at the earth surface peaks in the green color range, which should make green the most efficient choice. Although, I wonder why they have to absorb only a single or a narrow band of color.