• 2 Posts
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Joined 1 year ago
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Cake day: September 21st, 2023

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  • “they just forget they were children once” said every generation of kids.

    Myself included.

    We saw what was coming in the 90’s, and discussed the inevitable shitshow that social media was going to be (we didn’t know Facebook itself was coming, but we had MySpace, etc, which was also something we studiously avoided using because it was clearly problematic).

    I highly recommend reading about Las Vegas and the research the gambling companies have done to get people addicted to slots, etc.

    Vegas is designed to entrap you. Social media companies are using the same research to the same ends.



  • Parallel won’t show current load of a device. Even a clamp type can be thought of as serial, it’s just picking up the EM field instead of actually carrying the current load across the device.

    Something in parallel will be powered by the same source, with it’s current load independent of the other device.

    (And yes, I had to think about it for a second, it’s not always immediately intuitive for me either.)


  • 12-18 mo?

    Can you imagine a datacenter replacing them that often?

    Don’t get me wrong, it’s very good advice to remind folks these batteries are a wear item, and to be be prepared to replace them, but if you’re having to replace them at 18 months, I’d be looking for a different, not junk, brand.

    Maybe 2 years, if I have bad power so it’s being used, a lot.

    I can only imagine batteries wearing this fast because the UPS is cheap and doesn’t have pass-through design, and instead uses the batteries constantly to provide power conditioning.