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Cake day: June 27th, 2023

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  • People keep saying that, but it isn’t true that the leak being in the disposable part of the vehicle means it’s not a safety problem.

    It’s the pressurisation system for the thrusters. If that fails, then they won’t be able to control the capsule until it hits the atmosphere. That could mean they get stuck on the ISS, in the most extreme case, or it could mean that they lose thrust mid-manouvre and they re-enter the atmosphere incorrectly. That could be anywhere from inconvenient (they miss their landing spot and someone has to come get them), to dangerous (they land so far away that they’re in danger of sinking or being eaten by bears before anyone reaches them) to outright fatal (they skip off the atmosphere, or tumble their way into reentry and burn up)






  • What they’re suggesting is to back up the whole disk, rather than any single partition. Anything you do to the partition to try and recover it has the potential to make a rescuable situation hopeless. If you have a copy of the exact state of every single bit on the drive, then you can try and fix it safe in the knowledge that you can always get back to exactly where you are now if you make it worse






  • The black box isn’t like a modern hard drive, with terabytes of storage. They’re often old, and even the modern ones need to put so much effort into protection against things like fire, seawater and collisions that they don’t have as much space as you might imagine.

    They have to rely on someone going out of their way to take the box out, or shut down the plane, because the alternative would be for them to have some way to decide for themselves to stop recording. If they could do that then a false positive would cause them to miss potentially important data, so they’re designed to keep going until someone makes it stop


  • MartianSands@sh.itjust.workstoSelfhosted@lemmy.worldWhy docker
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    6 months ago

    I find it makes my life easier, personally, because I can set up and tear down environments I’m playing with easily.

    As for your user & permissions concern, are you aware that docker these days can be configured to map “root” in the container to a different user? Personally I prefer to use podman though, which doesn’t have that problem to begin with





  • They started launching in 2019, according to a quick look at Wikipedia. They told the general public (and regulatory agencies, I think) that the lifetime of the satellites was on the order of 5 years. The plan was to replace them frequently enough to maintain the constellation with that kind of service life (i.e. to launch the whole constellation worth of satellites every 5 years)

    Now, here we are 4 years later. It’s not terribly surprising if some of the early satellites are starting to reach the end of their lives.

    It’s going to be very expensive for them, but not an unexpected cost. This is the reason they’re so keen to start launching them on Starship