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Cake day: June 12th, 2023

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  • NiCd and NiMH batteries die when left in slow drain devices as the first cell to go empty starts to be reverse charged. These die and often leak pretty fast and you see that all the time if you repair old devices.

    Li packs don’t go empty as the battery protection circuit cuts the slow drain when they reach low water voltage. They are revived when the protection mode charge reaches low water mark again. They’ll be fine unless you leave them for years and years. Even then they generally never leak.










  • XTL@sopuli.xyztoSelfhosted@lemmy.worldHDD data recovery
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    2 months ago

    I once had a hard drive of some particular vintage that wasn’t able to start. I did actually get it running with a hammer tap. Got the remains of data out and replaced the drive. It was nothing special, a Unix system drive with nothing that wasn’t on tape, but I just had to see if I could fix a hard drive with a hammer.

    I also remember one admin who would often be seen walking between computer maintenance room and workshop wing with drives and a blacksmiths hammer labelled “format”.


  • NeXT is probably the pretty direct ancestor of osx dock. Only Apple turned it from good to bad by moving it to the bottom, where there is no space. And that only got worse as screens became wider, but not taller. And they made it overlap and obscure content and bounce around if you got near it making it extra obnoxious and hard to use.

    Other docks existed even before, of course.