A Luxembourg is approximately 1/5 of a Wales. No idea why the Guardian would be using Luxembourgs when the world has settled on the Wales as the unit of land area.
A double decker bus should only really be used for volume. You want football pitches here. One deciwales is around 323000 football pitches, so a Luxembourg is roughly 646000.
Etymologically, "Wales" is already plural. The root is "wealh", meaning "foreigner" (and before that, a tribe who lived in the region). "Cornwall" contains the same root.
Of course in this case "Wales" is its own word, independent of its etymological root. Since it's an English word, you pluralize it the same way you would any other word ending in s: "Waleses".
The same construction applies to the founder of Wikipedia with his family: The Waleses.
hmmm, could be, but at the time it happened he was on the other end of town but I wonder if will we were in close proximity he could have connected a BT device somehow and planted something.
I love seeing teardowns of old space tech. Having worked on safety critical projects I know that if something is proven and works it is generally not replaced unless something substantially better comes along, so I wonder if the soyuz still flies with these electromechanical wonders.
Remember that for freelancers in the US you've typically got like 40% overhead on your income, since you have to pay full tax on it and then you need to pay for your own health insurance and dental insurance.
So after that they've got 6-7k a month. Rent in many areas is 2000-3000/mo, so if they ended up previously settling down in an area like that (perhaps because they worked for a tech company or startup), I can understand feeling slightly squeezed. You can certainly live comfortably on 6k/mo as a freelancer but if you're the primary earner for a family it's probably going to make you nervous.
Freelancers also have to worry about gaps between payment, and funders/clients paying late. During my freelancing years I had some clients pay me $11k/mo and other clients just Not Pay me upwards of $5000, so even though I was "making" 11k/mo optimally, I ended up almost evicted after two clients opted not to pay me back to back. It makes a lot of sense to feel like your situation is precarious if you can only save up 1-2k a month, because your nest egg isn't growing super fast and your income may dry up without warning. It's not like having a salaried job as a high performer where the only real risk to worry about is layoffs.
These perovskites are notoriously difficult to deposit at scale in a uniform enough layer to be effective, with small variances causing dramatic drops in efficiency.
On the cool side, it's theoretically possible to make them translucent (without the silicon substrate ofc) which could make for cool power generating windows in the future.
On the not so cool side you really don't want the materials anywhere near you or your water table in the event of a panel being damaged. Lead halide perovskites, methylammonium lead iodide, are insanely toxic and a race to the bottom on price if they become widespread could be an environmental disaster waiting to happen.
Not to take from the achievements described here, but there isn't any mention of it. There is some hope in taking the lead out (tin based perovskites) but that tends to result in a drop in efficiency.
On the whole, at this point in time, I agree. For general purpose NVM stuff you're better off going with the less exotic, but SRAM isn't suitable for this specific use case. Some eNVMs are essentially analogue (CBRAM, OxRAM, PCM etc) whereby you can partially set a single memory cell much like a variable resistor. MRAM obviously had its specific two states so is unsuitable for neuromorphic computation, and SRAM is the same.
I disagree though that 22nm is the limit for (STT) MRAM and ReRAM, they both have excellent scalability.
SRAM scales nicely but is volatile, takes up lots of area and obviously isn't BEOL compatible. You can stack MTJs between metal layers just fine.
It depends, with ReRAM the ion mobility in the dielectric layer can be tuned, lower mobility means a higher voltage is required across the cell for filament growth but a lower thermal dependence.
the problem is the material properties link power and variability. This means that you either get good variability or higher power consumption, but never good variability at low power at the same time
That's partially true, there are other tradeoffs that can be made to optimise power and thermal dependence at the cost of something else but both specific use case and fab availability/reliability need to be factored in.
