qjkxbmwvz

joined 1 year ago
[–] qjkxbmwvz@startrek.website 1 points 3 months ago

Costco focus on quality over quantity

...which sounds hilarious, given it's Costco! But I agree, at least in their stores (as in, they don't necessarily offer a huge variety of any particular items, but the one they have is


for my money


usually good quality).

[–] qjkxbmwvz@startrek.website 12 points 3 months ago (1 children)

play(1)? I'm getting cat $FILE > /dev/snd vibes...

[–] qjkxbmwvz@startrek.website 2 points 3 months ago

awk(1)ward

FTFY

[–] qjkxbmwvz@startrek.website 14 points 3 months ago (1 children)

One thing to keep in mind


the US is huge, both geographically and culturally. Flying from Los Angeles to Boston is further than London to Baghdad.

And likewise, the cultural "distance" between, say, New England or the Pacific Northwest and the deep south is extreme.

Of course there are things that affect (nearly) all Americans, but some context is important.

[–] qjkxbmwvz@startrek.website 4 points 3 months ago

But this applies to the UK, Ireland, France, Belgium, Italy, Spain, Portugal, and...well...much of the world, if these data are to be trusted.

[–] qjkxbmwvz@startrek.website 2 points 3 months ago (4 children)

But "included" doesn't mean free. You still paid for it.

[–] qjkxbmwvz@startrek.website 71 points 3 months ago (7 children)

Baking is chemistry, cooking is jazz.

[–] qjkxbmwvz@startrek.website 7 points 3 months ago

I'm curious how the battery percentage went up

Physicists hate this one weird trick...

[–] qjkxbmwvz@startrek.website 2 points 3 months ago (1 children)

Exactly. And it includeded a 500GB m2 (SATA, not NVME, but still), with a spare m2 slot available. As opposed to an SD slot + USB port...

Dual gigabit NICs and importantly can be configured to boot after power loss (which the pi of course also does).

And Intel QuickSync may not be perfect but it is well supported with mainline kernels.

Only drawback is that it draws a few extra watts compared to the Pi.

[–] qjkxbmwvz@startrek.website 4 points 3 months ago

Is that true though? As in, is it really that dangerous? It seems that you'll dissipate power equal to the inefficiency times the nominal charging power, so something like 5V x 2A x inefficiency (inefficiency being 1-efficiency), which will probably be of order a watt.

I can use my car battery to charge itself without any issues


I just plug the red terminal to itself, and same with the black, which is to say, a battery is always connected in a way that "charges itself."

I think the key is that the battery probably isn't really playing a big role in OOP's setup


electricity doesn't "go through the battery," it just goes from the charging input to the power output circuits, with the additional power (due to inefficiency) being provided by the battery.

[–] qjkxbmwvz@startrek.website 46 points 3 months ago (7 children)

I'm not sure though


the power output and the charging input are both regulated and (almost certainly) current limited. So I think (not positive...) that you're basically dissipating your power in the inefficiency the charging and output circuits, with this power coming from the battery.

The inefficiency should (I think...) just be the round-trip inefficiency of the charging/discharging of your power bank


this should be way, way less than the short-circuit power dissipation.

The simplest toy model is to take a battery and try to charge itself. So you put jumpers on the + terminal and you connect those to the + terminal, and same for - (charging is + to +, NOT + to -). But this is silly because you've just attached a loop of wire to your terminals, which is equivalent to doing nothing. With charging circuits in between things get much more complicated, but I'm not sure if it goes full catastrophic short...

[–] qjkxbmwvz@startrek.website 2 points 3 months ago

The Roman font is serif, the Modern Latin font is sans serif


it was just a silly observation about font choices.

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