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.
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.
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.
Ah, it’s been a while since I used ChromeOS. Looks like Flatpak was founded about the time I stopped.
Ah, it’s been a while since I stopped using ChromeOS. That’s an improvement.
PV inverters often have around 1-2% losses. This is not very significant. You also need to convert the voltage anyway because PV output voltage varies with light level.
Buck/boost converters work by converting the DC current to (messy) AC, then back to DC. If you want an isolating converter (necessary for most applications for safety reasons) that converter needs to handle the full power. If it’s non isolating, then it’s proportional to the voltage step.
Frequency provides a somewhat convenient method for all parties to know whether the grid is over- or under- supplied on a sub-second basis. Operating solely on voltage is more prone to oscillation and requires compensation for voltage drop, plus the information is typically lost at buck/boost sites. A DC grid would likely require much more robust and faster real-time comms.
The AC grid relies on significant (>10x overcurrent) short-term (<5s) overload capability. Inrush and motor starting requires small/short overloads (though still significant). Faults are detected and cleared primarily through the excess current drawn. Fuses/breakers in series will all see the same current from the same fault, but we want only the device closest to the fault to operate to minimise disruption. That’s achieved (called discrimination, coordination, or selectivity) by having each device take progressively more time to trip on a fault of a given size, and progressively higher fault current so that the devices upstream still rapidly detect a fault.
RCDs/GFCIs don’t coordinate well because there isn’t enough room between the smallest fault required to be detected and the maximum disconnection time to fit increasingly less sensitive devices.
Generators are perfectly able to provide this extra fault current through short term temperature rise and inertia. Inverters cannot provide 5-fold overcurrent without being significantly oversized. We even install synchronous condensers (a generator without any actual energy source) in areas far from actual generators to provide local inertia.
AC arcs inherently self-extinguish in most cases. DC arcs do not.
This means that breakers and expulsion type fuses have to be significantly, significantly larger and more expensive. It also means more protection is needed against arcs caused by poor connection, cable clashes, and insulation damage.
Solid state breakers alleviate this somewhat, but it’s going to take 20+ years to improve cost, size, and power loss to acceptable levels.
I expect that any ‘next generation’ system is likely to demand a step increase in safety, not merely matching the existing performance. I suspect that’s going to require a 100% coverage fibre comms network parallel to the power conductors, and in accessible areas possibly fully screened cable and isolated supply.
EVs and PV arrays get away with DC networks because they’re willing to shut down the whole system in the event of a fault. You don’t want a whole neighborhood to go dark because your neighbour’s cat gnawed on a laptop charger.
Most Fediverse stuff has web front ends so that any modern browser will work.
My concern would be that Chrome is about to neuter ad blockers, and you can’t use a different browser without replacing the OS.
Both are also heavily privacy destroying.
The headline margin of error only applies at the centre (50%), and decreases towards the extremes.
https://en.wikipedia.org/wiki/Margin_of_error#Specific_margins_of_error
Wikipedia says that for a poll with 1013 participants and the same headline margin of error, a 2% result would be ±0.8%.
It’s more likely that this is the crowd who deliberately gives the most absurd answer possible.
There should be no need for tuning, tweaking, or optimizing on functionality this basic.
If you ask the processor, it will spit out a graph like this telling you what threads/cores share resources, all the way up to (on large or server platforms) some RAM or PCIe slots being closer to certain groups of cores.
Essentially no processors follow a standard. There are some that have become a de facto standard and had both backwards compatibility and clones produced like x86. But it is certainly not an open standard, and many lawsuits have been filed to limit the ability of other companies to produce compatible replacement chips.
RISC-V is an attempt to make an open instruction set that any manufacturer can make a compatible chip for, and any software developer can code for.
Leafs have battery packs with no active heating or cooling, which significantly impacts their performance in bad weather and when fast charging. Coupled with very small packs in the early models, and you have a recipe for a bad experience.
Bear in mind also that the extra weight and possibly aerodynamic compromises actually reduce range. In some cases, particularly at night, in poor weather, and at high speed, the panels would be a net negative.
They would only be useful if your car sat around in the sun for long periods without access to a charger.
HDMI and DP do not carry their signals in the same way. HDMI/DVI use a pixel clock and one wire pair per colour, whereas DP is packet-based.
“DisplayPort++” is the branding for a DP port that can pretend to be an HDMI or DVI port, so an adapter or cable can convert between the two just by rearranging the pins.
To go from pure DisplayPort to HDMI, or to go from an HDMI source to a DP monitor, you need an ‘active’ adapter, which decodes and re-encodes the signal. These are bigger and sometimes require external power.
While braking suddenly is something that can happen on the roads, it’s still a potentially dangerous maneuver. It’s often better than the alternative (crashing into something/someone), but there’s still risk involved.
If these vehicles are doing panic stops frequently and unnecessarily, that’s a major problem. It’s a common type of insurance fraud, for starters.
I wouldn’t be surprised to find that the computer has a faster initial braking response whereas it takes time for peoples’ feet to fully depress the brake pedal. A shorter time from the brake lights coming on to the brakes being at full service pressure.
Blackadder: Would that be the plan to continue with total slaughter until everyone’s dead except for Field Marshall Haig, Lady Haig and their tortoise, Alan?
It’s pretty common to own a domain but not actually host the email server; doing on-premises email is a security PITA and most providers simply blacklist large swathes of residential and leasable (e.g. VPS) IPs.
Unfortunately, if you get someone else to host your email, they often charge by the account, not by the domain. Setting up a new mailbox is therefore irritatingly expensive.
A catch-all email works well, though, and is free from most of the hosting providers. Downside is you get spam…
Jane@JaneDoe certainly seems more common than mail@JaneDoe.
I’ve certainly never heard of a chicken ranch, but plenty of chicken farms.
Yeah, I have no idea either, but it’s been around for more than a decade so it should be fairly easy to find a library that duplicates it.
I would be wary of AI-based solutions. There’s a risk of it picking up e.g. satirical/spoof sponsorships as actual ads, and perhaps not detecting unusual ads.
I’m slightly terrified of the day someone starts getting AI to reword and read out individual ads for each stream.
Indeed, the US has a major lack of fixed-line competition and lack of regulation. Starlink doesn’t really help with that, at least in urban areas.
I’m not familiar with the wireless situation. You’re saying that there are significant coverage discrepancies to the point where many if not most consumers are choosing a carrier based on coverage, not pricing/plans? There’s always areas with unequal coverage but I didn’t think they were that common.
Here in NZ, the state funding for very rural 4G broadband (Rural Broadband Initiative 2 / RBI-2) went to the Rural Connectivity Group, setting up sites used and owned equally by all three providers, to reduce costs where capacity isn’t the constraint.
You definitely would have legal issues redistributing the ad-free version.
Sponsor block works partly because it simply automates something the user is already allowed to do - it’s legally very safe. No modification or distribution of the source file is necessary, only some metadata.
It’s an approach that works against the one-off sponsorships read by the actual performers, but isn’t effective against ads dynamically inserted by the download server.
One option could be to crowdsource a database of signatures of audio ads, Shazam style. This could then be used by software controlled by the user (c.f. SB browser extension) to detect the ads and skip them, or have the software cut the ads out of files the user had legitimately downloaded, regardless of which podcast or where the ads appear.
Sponsorships by the actual content producers could then be handled in the same way as SB: check the podcast ID and total track length is right (to ensure no ads were missed) then flag and skip certain timestamps.
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.