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SomeoneSomewhere

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SomeoneSomewhere , to selfhosted in What are good harddrives to use with servers

Any hard drive can fail at any time with or without warning. Worrying too much about individual drive families’ reliability isn’t worth it if you’re dealing with few drives. Worry instead about backups and recovery plans in case it does happen.

Bigger drives have significantly lower power usage per TB, and cost per TB is lowest around 12-16TB. Bigger drives also lets you fit more storage in a given box. Drives 12TB and up are all currently helium filled which run significantly cooler.

Two preferred options in the data hoarder communities are shucking (external drives are cheaper than internal, so remove the case) and buying refurb or grey market drives from vendors like Server Supply or Water Panther. In both cases, the savings are usually big enough that you can simply buy an extra drive to make up for any loss of warranty.

Under US$15/TB is typically a ‘good’ price.

For media serving and deep storage, HDDs are still fine and cheap. For general file storage, consider SSDs to improve IOPS.

SomeoneSomewhere , to technology in Secret calculator hack brings ChatGPT to the TI-84, enabling easy cheating

I don’t remember if they fully closed the loopholes, but there are inputs that programs cannot catch unless you actually replace the OS.

SomeoneSomewhere , to science_memes in Square!

You don’t normally need to specify that the sides are parallel if you specify four right angles.

SomeoneSomewhere , to technology in Secret calculator hack brings ChatGPT to the TI-84, enabling easy cheating

Here in NZ they do a factory reset on your calculator at the start of every exam.

SomeoneSomewhere , to news in Cards Against Humanity sues Elon Musk's SpaceX for allegedly trespassing on Texas land

Exercising eminent domain can mean a long and expensive legal and media process. I’m not sure about Texas (or the rest of the US, for that matter), but many projects in the first world do everything possible to avoid using it.

SomeoneSomewhere , to news in Delta faces US investigation after flight passengers report bloody ears and noses

Boeing doesn’t make many of the parts in the aircraft, especially things like pressurization controllers. Those come from contractors like Honeywell.

What they do is design the systems around the parts, including selecting the desired level of redundancy, and commission the custom parts needed.

The 737 is still mostly a 1960s design built mostly to 1960s rules. There have been plenty of improvements but that’s not the same as a clean sheet design built to be entirely automatic even when stuff breaks.

SomeoneSomewhere , to piracy in Why is seeding a torrent helpful?

When you download a torrent, you’re downloading it from someone else’s computer. That ‘someone else’ is usually an individual, not some file sharing site with redundant servers.

When you download a torrent, someone had to send it. It’s a small cost for individual torrents, but they had to pay for energy, internet connection, hard drives etc. If more people seed the torrent, you get a small bit of it from each seed, spreading the burden.

If no-one with the torrent has their computer on and seeding it, you cannot download the file, because there is no-one to download it from. If there are several seeds with the torrent, then you can still download it even if one or more seeds turn the computer off at night, delete the file, or are overloaded.

SomeoneSomewhere , to technology in [discussion] DC (direct current) power network

Even 95% is on the low side. Most residential-grade PV grid-tie inverters are listed as something like 97.5%. Higher voltage versions tend to do better.

Yeah, filters essentially store power during one part of the cycle and release it during another. Net power lost is fairly minimal, though not zero. DC needs filtering too: all those switchmode power supplies are very choppy.

SomeoneSomewhere , to science_memes in Natural Inspiration

Well, that’s certainly the answer.

I wouldn’t have thought you’d want to put a building quite that close to the waterfront even in a Fjord, but apparently they did.

SomeoneSomewhere , to nottheonion in Elon Musk Says He Survived On $1 Per Day Before Becoming The Richest Man In the World – 'In America It's Pretty Easy To Keep Yourself Alive'

SpaceX has enough of a lead over everyone else that I don’t think them simply being denied government contracts is feasible, in a too-big-to-fail way.

You’d see some kind of forced nationalisation or being strongarmed into selling to another defense contractor on national security grounds.

Elmo might choose some kind of “if I can’t have it, no one can” sabotage though.

SomeoneSomewhere , to science_memes in Natural Inspiration

I don’t think the US/Canada usually does that style of power pole, with three phases on a crossarm and no neutral below.

Barriers on what looks like a pretty low-traffic low-risk road too.

I would think somewhere Scandinavia or central Europe. NZ wouldn’t put barriers like that up.

Rock wall near bottom of picture screams old.

SomeoneSomewhere , to mildlyinfuriating in My new m.2 ssd

B key vs M key. Laptop likely needs a SATA M.2 using B or B+M keying, you have a PCIe x4 drive with M keying.

SomeoneSomewhere , to technology in [discussion] DC (direct current) power network

I’m not sure there are any power grids past the tens-of-megawatt range that aren’t just a 2/3/4 terminal HVDC link.

Railway DC supplies usually just have fat rectifiers and transformers from the AC mains to supply fault current/clearing and stability.

Ships are where I would expect to start seeing them arrive, or aircraft.

Almost all land-based standalone DC networks (again, not few-terminal HVDC links) are heavily battery backed and run at battery voltage - that’s not practical once you leave one property.

I’m sure there are some pretty detailed reports and simulations, though. A reduction in cost of multi-kV converters and DC circuit breakers is essential.

SomeoneSomewhere , to greentext in Anon drives a bus

The problem is telling the difference between a good bike (noting that even Samsung screwed that up with the Note 7…) and these: cyclingweekly.com/…/fire-brigade-calls-for-e-bike…

SomeoneSomewhere , to greentext in Anon drives a bus

Aircraft typically have a limit of 100 or 160 watt-hours and require that the battery be separate or the whole device be small (think laptop sized) so that you can dump it in a fireproof bag.

An e-bike has a ~1kWh battery that is probably strapped or zip-tied in place and there’s probably no serious firefighting equipment.

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