xxs

32 ms·

751.
by xxs 3y ago
>LED filament bulbs. Just lots of LEDs in series with higher target forward voltage. Still, LEDs are current driven devices and quite temperature sensitive, and still need a driver. The issues are not that different. >That's pret
752.
by xxs 3y ago
> I think it's more a case of enshitification.The first LEDs I got were metal bodied. The heavier the better when it comes to such LEDs. Yes, it's possible to make them work okayish, and control the temps (LEDs should not go ov
753.
by xxs 3y ago
> Why not? B/c the LEDs require a driver which runs on DC [the better case is constant driven], the space constraints are too high and there is not enough room for heat dissipation which in the US kills the driver (as running on 110
754.
by xxs 3y ago
Charge Li-Ion to 4.21V and that's that. The rest (over 4.25) is overcharging. If you see the voltages charged - it's clearly outside the spec. Using a voltage -> percentage table is just a gimmick that has managed to stick. The
755.
by xxs 3y ago
lithium is not the issue at all for Li-Ion.
756.
by xxs 3y ago
realistically the cobalt based Li-Ion can reach ~250Wh/kg (and they are better than the LiFePO4). So 3kg of cobalt based li-ion would be below 1kW/h
757.
by xxs 3y ago
Retrofitting is =dumb=, like very dumb. The nominal voltages are different to begin with. However not that only - retrofitting in general is not a bright idea: case in point LEDs into E27/E17 incandescent fixtures.
758.
by xxs 3y ago
The Li-Ion and 2019 Chemistry Nobel prize went jointly to a British, American and Japan citizens. The Nobel Prize in Chemistry 2019 was awarded jointly to John B. Goodenough, M. Stanley Whittingham and Akira Yoshino "for the developme
759.
by xxs 3y ago
But cobalt is (which is the basis of the 'classic' Li-Ion). Of course, LiFePO4 doesn't require it.
760.
by xxs 3y ago
no real tactile feedback
761.
by xxs 3y ago
>there's no simple one to one mapping Why not: you can count the letters A=01, Z=26 and use that, use 2 digits each time, numbers start w/ 3 (e.g. 0=30, 9=39) That's inefficient but trivial to understand, then there is th
762.
by xxs 3y ago
I thought it'd be T9 - that was a glorious system.
763.
by xxs 3y ago
A wonder if a pound note actually meant a single pound (or just pound type, e.g. £5). It's a genuine question how it would be perceived in the UK, esp. when spoken by non Brit/Irish person.
764.
by xxs 3y ago
> I wanted to pay in cash... me as a German Very German thing to do, yet in the UK I have not had a need to pay in cash, just use your card (or phone/watch if you are into that). Dunno if it was the money type, or just not want to b
765.
by xxs 3y ago
Nothing to do with the EUR/USD rate, of course. I very much doubt the 'new' president would even hear anything left leaning, he is considered rather radical.
766.
by xxs 3y ago
If we are to go in such technicalities, Ecuador is closer. The distance - far/close matters when it comes to the trading partners more than anything. The US and Brazil being the biggest ones[0], and the trade is in USD. [0] https:&#x2
767.
by xxs 3y ago
The Euro and the eurozone (and the countries represent by) are related, along with its monetary policies. Similar to the USD (the dollar) - US is part of the name. The elected president is on the quite right side of the spectrum, so associ
768.
by xxs 3y ago
>Bonus question: Why not Euros? Euro is far, also Euro is far more left leaning (I guess) than the US (even democrats in the US would be considered right form the center in Europe). But the real issue would be the lack of currency reserv
769.
by xxs 3y ago
Some would argue that owning a PhD degree does not necessarily guarantee half decent engineering skills.
770.
by xxs 3y ago
As the saying goes: "we like naked girls, not naked sleep". Even the interns should know that, naked sleep is just bad - not fixing anything.
771.
by xxs 3y ago
The discussion is only relevant for a shared unguarded resource (the env) modified and read by multiple threads. Single threaded operations are just fine.
772.
by xxs 3y ago
>Have you ever exported anything in a shell script So, shells use a single thread that can safely modify the environment - then start new child processes by the same thread. The child processes get a =copy= of the said environment. That&
773.
by xxs 3y ago
Java has System.getenv()... and it's an unmodifiable Map<String, String>. The real culprit it's the attempt to modify it, not C.
774.
by xxs 3y ago
>Imagine having to test an app for its ability to handle safe read-write of OS-level state. I Also it should be able to handle invariants as modifying multiple variables is not an atomic process, either.
775.
by xxs 3y ago
The sexy part is more like having an extremely brushed/retouched image in a magazine - it's not real.
776.
by xxs 3y ago
The right thing is not to modify a global state once you have started all the threads. If you need to do that, use your own data structures. The case of getaddrinfo - would need a copy of the entire env. in a thread safe manner, then return
777.
by xxs 3y ago
The described problem (thread safety) for a global configuration seems mostly a misunderstanding by the author. The usual case for modifying a global state is: modify once, then proceed (e.g. start new threads). Even if all the calls become
778.
by xxs 3y ago
Besides quoting the chart, have a look at the tests themselves. I have commented quite a times why (some of) the tests are not well designed/executed. Personally, I do not consider geekbench a viable kit.
779.
by xxs 3y ago
Besides
780.
by xxs 3y ago
> Commission to table a specific law though Just for the folks on the West side of the Pond, pretty much means to drop the bill. "To table" is so weird.

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