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Joined 2 years ago
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Cake day: February 1st, 2024

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  • I’ve been pleased with it. Family is very relaxed about projects like this, but yeah it’s low power draw. I don’t think I have anything special set up but the right thing to do for power would be to spin down drive when not in use, as power is dominated by the spinning rust.

    Uptime is great. Only hiccups are that it can choke when compiling the ZFS kernel modules, triggered on kernel updates. It’s an rpi 3/1GB RAM (I keep failing at forcing dkms to use only 1 thread, which would probably fix these hiccups 🤷).

    That said, it is managed by me, so sometimes errors go unnoticed. I had recent issues where I missed a week of rsync because I switched from pihole to technitium on my home server and forgot to point the remote rpi there. This would all have been fixed with proper cron email setup…I’m clearly not a professional :)





  • I wonder, legally, if there is a difference between the companies that simply raised prices, and the ones who kept the price the same but added another line item to the invoice that covered the tariff.

    IANAL, but for the former, it seems like the company may be entitled to keep the money (of course it’s morally wrong). For the latter though, it seems like maybe (???) there’s some stronger legal pressure on the companies.

    Or not. But at least CAH is doing the right thing, as others have pointed out!















  • That’s exactly my point, there are two different colloquial ways of talking about angles. I am not claiming there is a mathematical inconsistency.

    Colloquially, a “triangle has 180 degrees” and a “circle has 360 degrees.” Maybe that’s different in different education systems, but certainly in the US that’s how things are taught at the introductory level.

    The sum of internal angles for a regular polygon with n sides is (n-2pi. In the limit of n going to infinity, a regular polygon is a circle. From above it’s clear that the sum of the internal angles also goes to infinity (wheres for n=3 it’s pi radians, as expected for a triangle).

    There is no mystery here, I am just complaining about sloppy colloquial language that, in my opinion, doesn’t foster good geometric intuition, especially as one is learning geometry.


  • I don’t think we’re talking about the same thing.

    If you take a circle to be the limit of a polygon as the number of sides goes to infinity, then you have infinite interior angles, with each angle approaching 180deg, as the edges become infinitely short and approach being parallel. The sum of the angles is infinite in this case.

    If you reduce this to three sides instead of infinite, then you get a triangle with a sum of interior angles of 180deg which we know and love.

    On the other hand, any closed shape (Euclidean, blah blah), from the inside, is 360deg basically by definition.

    It’s just a different meaning of angle.

    See, for example, the internal angle sum, which is unbounded: https://en.wikipedia.org/wiki/Regular_polygon