Noone here is planning to inject hydrogen into existing pipelines. If anything, synthesising methane during the transition so that consumers only have to switch their burners once, from nat gas to hydrogen, and not first to nat gas + more hydrogen and then to pure hydrogen. Gotta switch whole municipalities at once doesn’t make sense to duplicate the last-mile gas pipes. If, and that’s not even clear yet, hydrogen pipes will even be a thing for private consumers.

We shouldn’t be having methane in the atmosphere in the first place. Sure, if you produce the hydrogen from natural gas then you have a problem because that stuff comes with plenty of methane which won’t suddenly stop leaking.

From all that I’ve seen electricity lines (also HVDC) have higher transmission losses by a magnitude. With hydrogen and modern material science you’ll probably have the choice between higher losses and embrittlement, but that’s just another economical equation: Do you want to eat the higher losses, or replace the pipeline in a couple of decades or a century.

At least environment-wise hydrogen leaks aren’t an issue: Some atoms diffusing through the wall don’t constitute a fire hazard and the end result is water. Methane, OTOH, is a nasty greenhouse gas.

Speaking of nature: Ammonia is nasty, but nature produces it itself (just not at those concentrations) and can deal with it. The site directly surrounding a leak would be dead, a bit further downstream (literally) there’s going to be over-fertilisation. Not nice but definitely better than an oil leak and fixing it quite literally involves waiting until grass has grown over it as rain dilutes it and microorganisms migrate back in to eat it. Similar things apply to ethanol which I’d say would be a better choice for general use such as hybrid cars, camping stoves and whatnot because it’s not going to burn your lungs away. Can’t rely on people being conscious enough to get up and flee the ammonia stench when they’re in a car accident.

Burning methane also produces steam. Methane produces 891 kJ/mol, hydrogen 286 kJ/mol, methane has four hydrogen atoms that’d be 1144 kJ per what should the unit be in any case: Methane produces less heat per unit of produced water than hydrogen (the hydrogen first needs to get ripped off the carbon). Those ovens burn dryer than your current gas oven.

Never used steam when making pizza, they’re not in there long enough for steam to make a difference. For bread it’s indispensable to get a proper crust, though.

EDIT: Did I get moles right? It’s been a while and I am no chemist.

Back in the early days of gas infrastructure, before wide-spread electrification, you know gas street lights and everything, the gas was produced by gasifying coal, resulting in gas that was often over 50% hydrogen, with only ~20% methane. Rest nitrogen and CO.

Natural gas has a methane content upwards of 75%, which meant that everyone had to switch out their burner nozzles but the rest of the infrastructure stayed intact.

All this is to say: Nothing about is really new or rocket science. Europe is certainly creating a backbone pipeline network for hydrogen, parts of it new pipes, other parts re-purposed natural gas pipes, many were built to a standard that allows them to carry hydrogen though some valves etc. might need upgrading. Some of those were originally built for hydrogen in the first place, and checking Wikipedia there’s actually a 240km segment in the Ruhr area, built in 1938, still in operation, which always carried hydrogen. Plain steel but comparatively low-pressure so it works.

Oh and have another number: According to Fraunhofer, Germany’s pipeline network can store three months of total energy usage (electricity, transportation, everything). Not in storage tanks, but just by operating the pipelines themselves at higher or lower pressure.

And we need that stuff one way or the other: Even if tomorrow ten thousand fusion plants go online that doesn’t mean that the chemical industry doesn’t need feedstock, or that reducing steel with electricity would make sense. Both of those things need hydrogen.

Fusion is still in the future so the plan is to import most of that hydrogen, mostly from Canada and Namibia, in tankers carrying ammonia which is way more efficient that trying to compress hydrogen also ammonia is needed for some processes anyway.

Detractors have that fixation on straws, for the EU legislature it was just another regulation among many.

Also the plastic straw fixation is now kinda fading in favour of attached bottle caps. People will literally lose 50 IQ points and stub their nose to spite Berlaymont instead of rotating the bottle 90 degrees.

Deep into that darkness peering, long I stood there wondering, fearing,
Doubting, dreaming dreams no mortal ever dared to dream before;
  But the silence was unbroken, and the stillness gave no token,
  And the only word there spoken was the whispered word, “Lenore?”
This I whispered, and an echo murmured back the word, “Lenore!”—
       Merely this and nothing more.

And for the folks who are saying “wHy n0t rUst”, you can always show me the (rust) code.

https://github.com/servo/servo

I really wish they would publish flatpaks because I can’t be arsed to either build the thing or get a non-standard precompiled binary to run on nixos.

They’ve definitely done that before, dunno if it was deliberately. They must have somewhat of an idea how long it takes for nocebo to kick in with the local village idiots, if it’s short enough it could actually be a rather good idea to make waiting a bit a general policy. Tank some mild capital and opportunity cost to prevent having to battle in court and the town newspaper? Sounds like a win to me.

Simlocks have completely vanished from the market at least here in Germany, mostly because carriers don’t care if you use your subsidised bonus phone with a different card – you’re still locked into a contract with two years or such minimum duration. Even those contracts have gotten rare though I think most people right-out own their phones and then make a separate contract.

A massive population correction is inevitable.

The world population is going to stop growing, naturally, within the next decades as the last populous countries finish their demographic transition. It’s even going to see a reduction in many places unless steered against due to way below placement rate fertility. Long story short human fertility is intimately tied to child mortality: The fewer children die, the fewer kids we have, investing in quality over quantity.

The earth can easily sustain that population, even in a more fucked up state.

For a lorry, no. For a private vehicle, yes. Standard driving licenses only allow for up to 3.5t combined permissible weight (that is, vehicle and trailer plus maximum load), 750kg of those for trailer and load. If you want to drive a combination of vehicle and trailer individually up to 3.5t (so total 7t) you need a trailer license, anything above that you need a lorry license with all bells and whistles such as regular medical checkups.

Or, differently put: A standard VW Golf can pull almost thrice as much as most drivers are allowed to pull.

A small load for a private vehicle would be a small empty caravan, or a light trailer with some bikes. A Smart Fourtwo can pull 550kg which will definitely look silly but is otherwise perfectly reasonable, that’s enough for both applications.

My kitchen scales have a USB-C port. While I certainly would like it to have the capability to stream GB/s worth of measuring data over it fact of the matter is I paid like ten bucks for it, all it knows is how to charge the CR2032 cell inside. I also don’t expect it to support displayport alt mode, it has a seven-segment display I don’t really think it’s suitable as a computer monitor.

What’s true though is that it’d be nice to have proper labelling standards for cables. It should stand to reason that the cable that came with the scales doesn’t support high performance modes, heck it doesn’t even have data lines literally the only thing it’s capable of is low-power charging, nothing wrong with that but it’d be nice to be able to tell that it can only do that at a semi-quick glance when fishing for a cable in the spaghetti bin.

A and B are the original, used for host and device sides, respectively. C is the same on both ends of the cable because figures there’s device classes which can sensibly act as both, in particular phones. It’s also the most modern of the bunch supporting higher data transfer and power delivery rates because back in the days where A and B where designed people were thinking about connecting mice and keyboards, not 8k monitors or kWhs worth of lithium batteries.

The whole mini/micro shennanigans are alternative B types and quite deeply flawed, mechanically speaking.

Forks are derivative works (quite obviously) so yes you can forbid them via license terms. Whether or not that’s still open source, take it up with OSI. I vaguely recall that at least once upon a time there was some project that required modification to the code to be published as separate patches and it was generally accepted to be open source don’t ask me which.

That’s the sort of thing that should just be an extension

It most likely is on the technical level, just shipped by default and integrated into standard settings instead of the add-on ones. And it’s going to be opt-in, so you won’t have to go into about:config to disable it. Speaking of: You’re looking for extensions.pocket.enabled, it should be false. And before you say “muh diskspace” it’s probably like 5k of js and css or such.

Oh that’s easy (and probably disappointing): None. Not really a hobby of mine, more of an extension to doing the laundry and being a cheapskate who can’t fathom buying something new when you can fix it in the time it takes to listen to a podcast episode.

The other really valid reason is linen. Kinda unrelated to sewing itself and it’s not about stopping the stuff from crinkling (that’s right-out impossible), but to make sure that crinkles don’t always appear in the same place so the fabric has a chance of wearing down evenly.

Found this out the hard way because my linen duvet covers are oversized – nominal size is correct, but they’re made for down blankets, not flat ones. Blanket slides inside, generally towards the bottom, leaving a fabric flap on the top that really tends to crinkle as you sleep, wash, hang up, the crinkles don’t straighten out, exact same crinkles appear in the exact same spot and get chafed while sleeping, rinse and repeat for two years the first hole starts appearing, a month later there’s more than you can be bothered to patch.

Luckily it was a simple matter of running a stitch down the length of the thing to shorten it a bit, but given that an iron and ironing mat (not a full table, mat is completely sufficient) is significantly cheaper than linen covers or just the material for them, definitely worth the investment and time.

Oh and yes linen covers are definitely worth it because moisture regulation. It’s also nice and soft – not in the silky smooth sense, it has definitive grip to it. So are linen kitchen towels because they actually dry stuff instead of spreading water around. Half-linen is already a massive upgrade over cotton in that area and it’s much cheaper (the main reason why full linen is so expensive is because it’s a bugger to weave, not because the yarn is that much more expensive. Weaving linen wefts into cotton warps OTOH is pretty uncomplicated).

They have to be hotter than the temperature of the Sun

Well they don’t strictly speaking have to but to get fusion you need a combination of pressure and temperature and increasing temperature is way easier than increasing pressure if you don’t happen to have the gravity of the sun to help you out. Compressing things with magnetic fields isn’t exactly easy.

Efficiency in a fusion reactor would be how much of the fusion energy is captured, then how much of it you need to keep the fusion going, everything from plasma heating to cooling down the coils. Fuel costs are very small in comparison to everything else so being a bit wasteful isn’t actually that bad if it doesn’t make the reactor otherwise more expensive.

What’s much more important is to be economical: All the currently-existing reactors are research reactors, they don’t care about operating costs, what the Max Planck people are currently figuring out is exactly that kind of stuff, “do we use a cheap material for the diverters and exchange them regularly, or do we use something fancy and service the reactor less often”: That’s an economical question, one that makes the reactor cheaper to operate so the overall price per kWh is lower. They’re planning on having the first commercial prototype up and running in the early 2030s. If they can achieve per kWh fuel and operating costs lower than gas they’ve won, even though levelised costs (that is, including construction of the plant amortised over time) will definitely still need lowering. Can’t exactly buy superconducting coils off the shelf right now, least of all in those odd shapes that stellerators use.

The ISA does include sse2 though which is 128 bit, already more than the pointer width. They also doubled the number of xmm registers compared to 32-bit sse2.

Back in the days using those instructions often gained you nothing as the CPUs didn’t come with enough APUs to actually do operations on the whole vector in parallel.