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Joined 1 year ago
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Cake day: June 10th, 2023

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  • There was an extensive amount of refurbishment required to re-use the SRBs. Not to mention they had to be physically recovered, and salt water certainly made the process more complicated.

    The shuttle itself needed each of its heat shield tiles replaced, which due to the shape of the shuttle were all unique.

    The fuel tank was not reused.

    The shuttle was meant to be a leap forward in rocket reusability, but it didn’t really pan out that way. There’s good reason the program was scrapped and not replaced with another space plane.

    The Starship booster has the potential to launch multiple times per day. The only refurbishment period is how long it takes to refuel it.






  • Ok a few things:

    Batteries don’t need “a few sparks” to catch fire. They will generate plenty of heat if punctured and self-ignite.

    You don’t pour water on a grease fire because grease floats and it will spill out of your pot and catch the rest of your kitchen on fire. Also the water will boil and splatter oil everywhere.

    Also pouring water on a battery fire is the preferred way to put it out. Many of the chemicals in the battery will release oxygen when heated, so the best way to put it out is to cool it down as much as possible by dousing it with a shitload of water. It isn’t always possible to apply enough water to the core of the fire which is why they are hard to put out. Sand won’t do anything because the fire is self-oxidizing.

    Yes lithium metal reacts with water, but that’s not what makes batteries hard to put out.








  • ch00f@lemmy.worldOPtoSelfhosted@lemmy.world[Question] Rate my upgrade!
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    8 months ago

    Yeah, but we always run them in native formats, so it’s not a big load on the processor. We only watch the 4K stuff at home where it’s got a hardwired gigabit ethernet connection.

    If you saw my other comment, I’m kind of talking myself out of this upgrade since I managed to get qsv working on my current rig.


  • That shouldn’t be the case. I’d look into getting this fixed properly before spending a ton of money for new hardware that you may not actually need. It smells like to me that encode or decode part aren’t actually being done in hardware here.

    Right you are!

    Dug into it a little more. There were some ffmpeg flags that weren’t being enabled by the latest release of Photoprism. Had to move to the test build. https://github.com/photoprism/photoprism/discussions/4093

    While it’s faster than real time now, Photoprism still won’t start streaming until the preview is fully generated, so longer video clips can take a minute or two to start playing. It only has to happen once per file, but it’s still annoying. There’s a feature to pre-transcode video, but it’s only to get in to a streamable format. It doesn’t check bitrate/size until you actually start to play.

    I might write a script to pre-generate the preview files, but either way, I don’t think I need to upgrade the server quite yet.