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Cake day: April 3rd, 2024

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  • Jesus_666@lemmy.worldtoScience Memes@mander.xyzevery time
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    7 days ago

    My girlfriend got herself a pair and taped them to corners of her desk. She doesn’t want to turn on the light when she gets up at night but she also doesn’t want to bump into the desk. Tritium vials fit that use case well.

    Could we have gone with dimmable lights or something homebrewed with low-power LEDs? Sure, but tritium vials are affordable and don’t need a power supply, a remote, or much in the way of setup; they’ll just keep doing their thing for about a decade before you have to even think about their light output.

    They’re a solid choice if you have the specific use case of wanting something to be easily located in (near-)complete darkness but you don’t want to use electricity for some reason.


  • Until you update your EFI and have forgotten all about the fact that non-Windows EFI boot images need to be registered with the Secure Boot key store even if Secure Boot is off. And that the key store is wiped when updating the EFI.

    And then you spend an entire afternoon trying to find out why your Linux boot every isn’t even recognized by the EFI anymore. Fun.





  • Unless other situations where the established technology wins due to inertia, sodium ion batteries have two benefits that make them interesting regardless:

    Firstly, they are safer. A punctured sodium ion battery doesn’t catch fire, which massively simplifies safety design. That makes them very attractive for certain scenarios, especially ones where density is a secondary concern. That in turn means they get further development money instead of withering on the vine.

    Secondly, they require fewer hard-to-obtain materials, which makes them attractive from a strategic perspective. This one should be less important than the safety factor but it’s also relevant.

    I’m pretty sure we’ll actually see wet sodium cells in the wild if they are actually practical. Sodium ion tech is already being commercialized and if this brings it within the same ballpark as lithium ion then it becomes a very interesting choice for vehicles due to instant crash safety gains.







    1. The video game industry effectively collapsed entirely.

    There were something like 14 major console systems on the market, all incompatible with each other. None had decent quality control for the games. At the same time home computers were starting to be a thing so the hobby money started going in that direction.

    In sum that caused an effectively total collapse of the industry in the USA. It took until the late 80s for the market to start to recover when Nintendo released a new console. Notably, this console was not marketed as a game console – it was the Family Computer in Japan and the Nintendo Entertainment System (with a shell deliberately styled like a VCR) in the West.

    Several major companies left the market (like Magnavox or Coleco) or were unable to compete when the market recovered (Atari).