qjkxbmwvz

u/qjkxbmwvz@startrek.website
5 posts · 1.6k comments

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on Supply and demand · c/memes · 4 pts · 174d

Oh they absolutely do! My only point is that grid supply must equal grid demand. There are many ways to achieve this, as folks here have pointed out.

Throttling power generation (turning off/disconnecting PV from grid for example), and storage (chemical, heat, or hydro battery) are all established technologies, they just need to be implemented properly to avoid supply/demand mismatch.

on Supply and demand · c/memes · 2 pts · 174d

If it's a low resistance path to ground, it'll get very very toasty! If it's a lousy ground though, then it won't...but it also won't consume any power, so it's not an effective way of scrubbing off electricity.

A good ground (low resistance) is found in your household wiring (the ground and/or the neutral). Of you short to that...well...you can guess what will happen! (Let's hope you have proper circuit breakers.)

on Supply and demand · c/memes · 12 pts · 175d

Of course. Like I said, we know how to do it, but it's still an engineering feat to get it done.

on Supply and demand · c/memes · 1 pts · 175d

That is not how it works.

When you short something to ground, it's everything in between that needs to dissipate the heat. Think about what "sending it to ground" means---it means you connect the hot to the ground. But with what do you connect the two? A wire? Sure, but you better hope that wire can dissipate all that power, because that's what it'll try to do.

You can't just "dump power on the ground." That's not how it works.

on get snafu'd idiot · c/okbuddyrosalyn · 8 pts · 175d

And LaserDiscs can do either! Each one has advantages/disadvantages. CLV has longer runtime, but CAV has better quality and crosstalk properties --- one frame is one revolution, so crosstalk from adjacent track is just crosstalk from +/- 1 frame, and it's "the same part of the frame" in a sense.

CAV also allows for clean pauses, as it just keeps reading the same frame over and over again, with no need for a fancy buffer.

on Supply and demand · c/memes · 131 pts · 175d

This gets posted regularly on Lemmy, and while the economic take is tone-deaf at best, there's a real issue with generating more power than you can use. You can't just dump grid power --- it needs to go somewhere. The grid needs to consume as much as it generates at all times or else bad things happen.

There are of course solutions, but that doesn't mean it's not an engineering challenge to implement.

Figuring out what to do with kilowatts is easy, but figuring out what to do with megawatts, at the drop of a hat, is substantially harder.

You want an instance? I can get you an instance, believe me. There are ways, Dude. You don't wanna know about it, believe me. Hell, I can get you an instance by 3 o'clock this afternoon... with Achievers. These fucking amateurs...

on Steam Deck VPN · c/linux_gaming · 4 pts · 178d

Maybe not what you want, but have you considered VPN'ing at your router? Doesn't help if you travel, so maybe worthless...

on Coffee ☕ · c/science_memes · 22 pts · 178d

You can/could also find Coffee HOWTO in your distro's HOWTO package. (I found a reference back to v0.5 of the document in 1998.)

Has simple schematics to get you started for the hardware, using the parallel port to toggle relays.

It's a very neat little document, and inspired me to write a simple kernel module so I could echo 1 | sudo tee /sys/whatever/coffee0 to turn pin 0 high on the parallel port. (This is silly, and it's much easier to just do things in user space!)

Humans weren't meant to live with zero autonomy.

Not every parent removes all autonomy from their child. Sorry that happened to you, sounds like it sucked.

Cool, I recommend it!

I have my public facing reverse proxy point to my public services, and I also have it set up as a "roadwarrior" VPN to my home. So, I can connect my phone via WireGuard to my VPS, and a local DNS resolves my private services to the private IP addresses in my home network (so, I also run a reverse proxy on my server, for internal services).

I also have an off-site backup using this --- just a raspberry pi and an HDD at family's, that rsyncs+snapshots over the WireGuard network.

I'm sure I'm not following all the best practices here, but so far so good.