Depends on model, but some turbines are very much designed to provide frequency stabilisation so long as you can instruct what the phase should be at given time
Depending on country there are sometimes very strict requirements - or just traditions sometimes - around building up strong survivability in face of total loss of grid power. Including diesel and turbine generators on bigger BTSes let alone exchanges. If you drop capacity per terminal (so bandwidth) you can cover a lot more range at times which helps with mobile network resiliency.
> Including diesel and turbine generators on bigger BTSes let alone exchanges.
Or if you’re AT&T, grid natural gas backup, so your CO goes down if electrical and natural gas both go out once the batteries die. Did I mention how they didn’t build in roll-up generator connection points and had to emergency install those?
For wind turbines, solar, and batteries, the frequency stability is doable through controlling frequency from inverters.
Some wind turbines are also internally a hybrid design that can dynamically adjust the frequency difference angle both for minimal losses in production, but also to provide frequency shifting and even artificial demand (i.e. essentially using wind power as brake)
The inertia provided by synchronous generators was in essence a natural benefit to the grid that we never appreciated previously. But now with more renewables it’s now something we have to consider and design for. Running a grid on 100% non synchronous requires a bit more effort!
It's something untrue that people are told to believe - but it's in no way a real obligation, and isn't part of any fiduciary duty - it's just Friedman philosophying and selling it
Alpha was out of order starting with EV7, but most importantly the entire architecture was designed with eye for both pipeline hazards and out of order execution, unlike VAX that it replaced which made it pretty much impossible
The article is terrible, this doesn't affect the default NAPI behaviour. See the LWN link posted elsewhere for a more detailed, technical discussion. From the patch set itself:
> If this [new] parameter is set to a non-zero value and a user application
has enabled preferred busy poll on a busy poll context (via the
EPIOCSPARAMS ioctl introduced in commit 18e2bf0edf4d ("eventpoll: Add
epoll ioctl for epoll_params")), then application calls to epoll_wait
for that context will cause device IRQs and softirq processing to be
suspended as long as epoll_wait successfully retrieves data from the
NAPI. Each time data is retrieved, the irq_suspend_timeout is deferred.
The trick to handle it well is easy access to catalog and ability to recall books from storage.
Another superpower in some countries is the inter library loan - you might need to befriend the local library to utilise it fully, but a classmate of mine in high school used it as effectively free pass to university libraries that you can't borrow books from when you're not suffering or faculty.
Where I live now, a large fraction of the suburban libraries are part of a consortium (SWAN—covering mostly south and western suburbs of Chicago). They have a shared catalog and any book/CD/DVD/etc.¹ can be requested right out of the catalog for pickup at my local library.
In California, I think you can get a library card at any public library system as long as you’re a California resident. At one point I had cards for L.A. County, Orange County, Beverly Hills, L.A. City and Santa Ana.
Many public libraries will do ILL for books outside their system for free, although that’s generally funded with money from the federal government which Musk and his band of hackers have decided it’s vital to eliminate.
⸻
1. Well, mostly. A few libraries won’t send out CDs or DVDs but you can still check them out with your card if you go to that branch and then return it at your home library.
Texas has the TexShare system, which facilitates ILL between just about every library in the state (public & university), and lets libraries issue TexShare cards that give reciprocal borrowing rights at any other TexShare library
Illinois has RAILS which is similar (without the cards). The problem is that these programs are funded by federal money which Trump/Musk are cutting off.
The books don't get put in storage in most places, they get thrown away.
> but a classmate of mine in high school used it as effectively free pass to university libraries that you can't borrow books from when you're not suffering or faculty.
The mass de-accessioning of older books is such a huge problem you often cannot find (even famous!) works through ILL anymore.
At the time Odra 1300 were in R&D, they were on par - in fact, ELWRO and ICL cooperated, so the hardware was locally designed but compatible, and base software was essentially localized from ICL one + local software packages.
This built a pretty good starting position to work on more advanced designs, but then certain stupidity happened in form of ES ("Single System") initiative, which a) was based around S/360 when S/370 was to be released b) ELWRO was assigned "mid performance" machines when it could actually deliver a much faster one.
I don't know for certain how true it is, but there's a legend that ELWRO prepared a design based on their best, but compatible with S/360 and thus rest of ES EVM - just way faster in smaller frame (effectively imagine top-tier S/360 CPU but in way smaller package), and kept true performance details secret until accidental leak caused a small but impactful political shitstorm that canceled the efforts.
>I don't know for certain how true it is, but there's a legend that ELWRO prepared a design based on their best, but compatible with S/360 and thus rest of ES EVM - just way faster in smaller frame (effectively imagine top-tier S/360 CPU but in way smaller package)
My understanding is that while R-32 did benefit from the technology edge that ELWRO built up, they actually tried to build a much faster model than R-32.
Unfortunately, it's really hard to get reliable sources about some details.
As a half Polish half Russian who grew up in soviet Lithuania i still remember hating to learn polonez in the late soviet period. Dancing doesn't involve computers...
Anyways, as a single statistically insignificant fact: polonez was not banned in late ussr.
And a glamorous version of polonez was also taught in higher imperial circles. At some point everything polish was quite trendy. Probably not around the big 19th century uprising though.
The full story of the dance and the music in the empire is quite a bit more complicated than just "banned" or "not banned". Many polonezes were written by Polish aristocrates integrated into imperial elites and were very popular.
One example is Oginsky's polonez. Oginsky was one of the uprising avtive participants. And also an imperial senator.
There's also Kozlovsky (orthodox Polish from belarus or something) whose polonez was an unofficial imperial hymn at some point.
So go figure. History is never as simple as narrative builds try to put it.
Polonez certainly wasn't banned under PRL or USSR, but it would not surprise me if Chopin arrangements of Polonez were banned in "Congress Poland" but allowed in "proper Russia"
Wasn't banned by Imperial Russia either. There was a very short period of time (1799-1828) when all kind of waltzes were banned, but the ban was never enforced and it had nothing to do specifically with polonez or Poland.
