Eufalconimorph

@Eufalconimorph@discuss.tchncs.de

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Eufalconimorph,

Not directly, but they improve the low-power modes substantially, and using the low-power modes for longer times is the solution. Inverters aren’t strictly needed, but they do make it better.

Eufalconimorph,

At what point does it become ok to have an open bed?

When the distance from the back of the truck to the front of the bed is longer than the distance from the back of the cab to the front of the truck, it turns from a Sport Utility Truck into a Pickup Truck. Typically that’s around when the bed gets big enough to haul a sheet of plywood or drywall safely.

Of course it’s OK to have an SUT instead of a pickup truck, just not as useful for construction work.

Eufalconimorph,

I said nothing about safety. I just said it should be considered a different class of vehicle if it meets certain characteristics. SUTs are great for camping, for hauling surf boards & kayaks (possibly with a rack) and tow just as well as pickups. They don’t have a full-size bed, so they’re worse at most jobs, though the larger cab does mean they can carry more workers at once. It’s a trade-off: get worse at most work-related tasks, get better at personal tasks and thus reach a wider market.

Eufalconimorph,

Motorola Razr IIRC. First smartphone was a Samsung Galaxy S.

Eufalconimorph,

People use computers to accplish tasks. That requires running software on an OS, but nobody runs software or an OS just to sit & watch it exist. They run it to accomplish tasks.

Different distros mostly vary in how easy it is to accomplish various tasks. No one distro is the easiest for everything, so people make different choices depending on their needs.

Eufalconimorph,

Negative absolute temperature is a thing. Lasers exhibit negative temperatures when active, i.e. the lasing medium has a negative temperature expressed in Kelvin. Adding more energy doesn’t increase its entropy, it just turns into more laser light. Any such system with bounded entropy can have a negative thermodynamic temperature.

Eufalconimorph,

Not if they have to see that guy with his pants off!

Eufalconimorph,

You use the cleaning function first, then the dry function. Don’t just dry the shit on there (well, maybe you would, but everyone else washes first, that’s the point of a bidet).

Eufalconimorph,

The “isn’t huge” is the issue. Linear supplies need a rather big transformer to work with 60Hz mains instead of chopping it up at 20kHz or more like switchers do. I’ve got a Siglent SPD 3033X-E (decent, reasonably cheap) and a BK Precision 9201 (better, more expensive).

Eufalconimorph,

The small supplies are nice for size, but tend to have more noise than the big linear supplies. If you’re working with low-precision DC circuits, or even stuff up to audio frequencies (basically still DC) it’s not likely to be an issue. If you’re working with RF circuits it’s more likely to be an issue, though of course if they’re not too close to the switching frequency it’s easy enough to filter the output.

Eufalconimorph,

Murphy’s Oil Soap for wood floors.

Eufalconimorph,

Threads (1984 BBC tv movie banned from rebroadcast for 40 years due to being too horrifying). It’s about the death of hope, and how all that remains after is to hope for death.

Edit: I’ve seen it once. That was enough, I never want to see it again.

Eufalconimorph,

Interesting. I’ve mostly seen communities overwhelmed with bot posts and 0 replies, but I haven’t taken any statistics.

Eufalconimorph,

If there’s more activity on Reddit then here, then Reddit repost bots make it feel like all the community action is happening on Reddit. They push people back to Reddit because that’s where all the new posts are coming from, so why engage here if the active discussion is already in progress over there?

Eufalconimorph,

Worth trying. It’s already broken, you can’t really make it much worse. It’d probably work, and worst case you’re back where you started & paying for expensive shipping.

Eufalconimorph,

Copper or silver-based should be lower resistance. These conductive paints tend not to be very conductive, the carbon stuff is essentially making a thin-film carbon composition resistor. Good for repairing rear window defroster heating elements, not so great as a 0-ohm trace in a keyboard. For short (<1cm) wires it’s usually not too bad, but with the amount of damage I’m not sure you’ll be able to repair the thing.

It looks like it might be from a Model M-style keyboard. Unicomp sells those.

Eufalconimorph,

DoH looks identical to normal website traffic. If it’s slow, it’s probably the DoH provider and not the ISP.

Eufalconimorph,

You mean SNI, not ESNI. ESNI is the Encrypted Server Name Indication that gets around that, though the newer ECH (Encrypted Client Hello) is better in many ways. Not all sites support either though.

At what size of transistor does semiconductor manufacturing become practical for independent manufacture?

Currently, only one company in the world – ASML – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for...

Eufalconimorph,

We’ve had open-source chip design software since the 1980s. Magic VLSI, for example. There are quite a few OSS tools for various parts of the chip design process.

Eufalconimorph,

Also bleeding-edge processes mean smaller, thinner gates. That’s what gives them the fast switching speeds, but it reduces the max allowable voltage. For parts that need to handle more than 1.8V or so a modern 5nm process will just end up using bigger gates than the process is optimized for. May as well go with an older process (bigger minimum gate size) that’s better suited to switching the voltage needed. For Bosch (automotive parts, power tools, etc) they’re making a lot of parts with really big output transistors (switching 14V, 48V, etc) and not super high-performance processors.

The big disadvantage with particularly old processes is that they used smaller wafers. So fewer chips per wafer processed, meaning lower overall yields and higher price/chip. The switch from 200mm wafers to 300mm in 1999 meant the wafer area increased by a factor of 2.25! 300mm wafers also required fully-automated factories due to the weight of a wafer carrier (a front opening wafer pod, or FOUP, is 7-9kg when loaded with 25 wafers), which save on labor costs. So processes older than 1999 (around the 180nm node) are sometimes not worth it even for power electronics.

Eufalconimorph,

Same. I’d rather pay than have advertising.

Eufalconimorph,

It’s dielectric (non-conductive) not dialectic (talking).

Eufalconimorph,

Just about any soldering iron should work. Chisel tips are better than round tips for most work. I really like J tips as well, they’ve got a range of usable surface sizes without having to change tip just by turning the iron around.

Put a piece of heat shrink tubing on one wire.
Strip the ends, and form a Western Union splice in the wires to hold them.
Set the iron to 350°C, and let it heat up. If your iron doesn’t have temperature control, it’s cheap crap and should probably just be thrown in the trash since it’ll tend to over-heat and lift pads when soldering PCBs. Continue for now, that doesn’t matter as much for soldering wires.
Then apply a tiny bit of solder to the tip of the iron so that it can make good contact, apply flux to the bit where the wires join (do NOT skip flux), touch the solder to the wires, and then touch the iron to the other side of the wires. The solder should quickly melt & flow into the joint.
Remove the solder, then remove the iron.
Let the joint cool, then slide the heat shrink up over the joint and shrink it with a heat gun.

Crimp connectors tend to be stronger and more vibration-proof than solder, but sometimes space constraints mean that soldered splices are necessary. Also crimpers are expensive, for many wire-to-wire crimp families the official crimpers are several hundred dollars.

Eufalconimorph,

Mini-PV is the standard (in that DuPont used to make them), but the M20 clones are more common. It was created by Berg, who got bought out by DuPont, who spun those off to FCI and then that went to Amphenol decades ago. Then Harwin made their M20 connectors as a near clone of Mini-PV, but they aren’t a perfect fit with Mini-PV housings (and vice versa). M20 won’t fit in a Mini-PV housing, and Mini-PV will be loose in an M20 housing. Then tons of other manufacturers started cloning M20. Most cheap leads you get will be M20.

I tend to just make my own M20 jumpers since that lets me set the length. Mini-PV is necessary if you want more options for wire gauge or spring tension though.

Eufalconimorph,

The Internet corollary to Murphy's Law: If you post something, it's public forever unless you need it later, then it'll have link-rotted. Anything you want to delete will be archived, anything you want to save will be deleted.

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