skysight-inc/HackerNews huggingface dataset:
Where "flywheels" in common parlance differ from synchronous condensers is that condensers run at zero torque - so they provide no active power to the system. They provide reactive power, which is needed to regulate and maintain the stability of the power system, but not active power which is used to match generation and demand or shift load. There's no actual source of energy being fed into a synchronous condenser. In a flywheel, you're drawing energy from the grid to spin up a really big mass and then storing it in rotational inertia so you can output it later very quickly. Flywheels can provide reactive power too, through their DC/AC power converters, but since you don't actually need any rotating mass to do that (recall, reactive power requires no torque), you can use a STATCOM - which is functionally like a synchronous condenser just without any moving parts.
Americans Are Ditching Their U.S. Citizenship at a Record Rate
>>I think they claimed that the newly regenerated animal exhibit the same behavior.

As directly referenced in the article, flatworm experimenters (James McConnell in the 50's and 60's, and Michael Levin in 2015[1]) definitely claimed regenerated flatworms exhibited the same behaviour.

[1] https://www.theverge.com/2015/3/18/8225321/memory-research-f...
Renting is about 30% more expensive in Seattle, and just about every other metric that you can measure costs of living by also favour Vancouver. The fact that Vancouver is on the west coast, and the fact that salaries are lower there than there are in the US is what is currently attracting more technology companies to open offices there. This isn't a theory, Vancouver has Canadas fastest growing tech sector. These are the same conditions that attracted companies to open offices further up the west coast to begin with, only now Seattle doesn't offer the same advantages that it used to.
Most people strongly prefer to hire their friends, so there aren't many social spaces anymore. And if you're lucky enough to get a job in the industry at all, someone might try to get you run out of the industry for violating whichever ornate Versailles-like code of etiquette they carry around in their head. Or just because they don't like you.

I'd like to get involved in the indie-web stuff but it's pretty hard to do when I have to not only stay anonymous but ensure that none of my anonymous web presences can be connected to any of my other anonymous web presences.

I mean, I'd also like a job that pays more than $15/hr and doesn't involve lifting boxes for eleven hours a day, but it's also pretty hard to do that when etc., because all professional spaces are also social spaces and if you can't social with the calculation of a Parisian courtier, well.
Actor faces weapons charges for wielding prop gun during filming
Kids can see the f*in cosmos on their phones these days. hookup with 20+ chicks with tinder before their 20th birthday. I tell ya, by the time the next generation is 50 years old they wont want to live, the suicide rates will be high, nothing to live for... seen it all done it all lol.
Happy that I was learning a lot by getting to do hands-on product design but constantly checking in with my professional contacts to see if there would be somewhere for me to land if it all went belly-up. ;)
I agree that simpler scripts deserve to be in source control too. I read it to mean what I also would say, myself: if it's anything but the most trivial of scripts (so, rather _programs_), they shouldn't be in BASH. Some people in this discussion are clearly very well versed in BASH. Great. For average developers, though, it's hard to build (good) programs in BASH, and the rabbit hole swallows them. Every time.
See my comment above on this: https://news.ycombinator.com/item?id=17071303
Police Officer Mistakes Doughnut Glaze for Meth, Resulting in Lawsuit
Do you at keep a backup copy of your articles?
> Isn't that fairly typical turbocharger turbine speed though?

I believe so, but compressor/turbine wheels don't have a lot of mass to them, so fragments don't usually escape very far if they blow up. I've seen a few compressor housings split, and the main damage is done to the engine itself really.
I guess if your turbo was sitting high up and exposed, it might be a danger.
Flywheels however just seem to fail more regularly from my experience.

(Also, yeah anything rotary powered deals with scary rpm's, haha!)

For anyone interested, here's some in-car footage of what we're describing here: https://www.youtube.com/watch?v=qOHUwL0zeXc and an image of what the result can look like: http://images.thetruthaboutcars.com/2011/04/LNJ11-BlowedUpPa...
I was much more surprised by the sourdough article with over 600 points and iirc stayed at the top spot for many hours.

https://news.ycombinator.com/item?id=16946178

How was that intellectually stimulating or worthy of discussion among IT people or ‘hacker’ in general, seriously? Can’t interested people do a 30-second Google search instead?
You can do some hilarious things via the inspector too

https://imgur.com/a/CaVlxWN
Just in case anyone doubts this story, I have built 6 of these Instagram engagement bots within last month that operate on telegram and are used to monitor engagement of all the people who signed up.
Yeah, I'm familiar with it, though hopefully not familiar familiar with it. As far as we know, it's some other kind of coccidia. Either way, there's a whole lot of washing and hand cleaning going on these days.
Google themselves have a nice one: https://cloud.google.com/about/locations/
Drivers beware: Cameras coming to Bandera Road to catch red-light runners
Ask HN: When did your mentality “click”?
Sometime during my graduate studies, I took a group of classes that were mostly seminars, and something remarkable happened over the course of three months. I stopped caring about exams and started caring about the applicability of what I was learning.

I discovered I was able to absorb and communicate knowledge with fresh clarity. I stuttered and mumbled less. My curiosity for many things related (computational science, engineering) and unrelated (macroeconomics, political systems) suddenly opened up. I started reading non-fiction voraciously, and initiated a virtuous cycle of knowledge assimilation and application. Of course, I can only analyze these events in hindsight as being reformative.

Do you recall such a transformation in your life, and what triggered it?
Most people I'd describe as being in it for the money are just looking for a bland, suburban middle class existence and are happy to plateau once they start making enough to be comfortable.

Again, you're describing me. I'm happy to "plateau" and unless something drastically happens with my local market,
I'm close to it since I have no desire to go into management. If I want to keep my "bland,surbaban, middle class" lifestyle, I've got to keep my skills current.

But if I look what's on my agenda for possible things I can learn next, the most I can hope for is 10K more - excluding cost of living raises -than I make now (after making $45K more in the last four years by changing jobs three times).

I'm definitely trying to get even stronger at infrastructure (AWS mostly), but everything else I'm planning on learning - Node, at least one modern front end framework, Android and/or iOS, just increases the number of jobs I'm qualified for, not my salary by much.
I am a member of a forum for professional car mechanics. You would not believe the number of people who abuse their car by driving with brake rotors down to ridiculous thicknesses, or only changing their oil once in 40,000 miles.

Consumers are bad at maintaining mechanical things.

Think about this for a moment...

Now Google "flywheel explosion".
Wired and Wireless AV System – Is There a Difference in Quality?
Don't most washing machines plug into a 240V circuit?
Instead of following people, add them to a list. You get a sequential feed of tweets from everybody in the list, and no ads. Works across all official Twitter clients, no need to worry about API restrictions or token limits.
One of the reasons this was needed for a long time is that DC traction power systems used rectifiers that only worked one-way, so you couldn't just spit the regenerated braking energy back out on the main AC grid. So without somewhere to store it, regenerative braking would cause temporary overvoltages on your traction power system.

With modern power electronic converters, it's probably cheaper and easier to just use the main AC grid as the sink for the regen braking power.
So let's do a little high school "perfectly spherical cow of uniform density" physics here.

Imagine we take that 1 Tesla mass and turn it into a infinitely thin ring of infinite density material. Now we can calculate how fast it's need to be spinning to get all that mass doing "1000mph".

Lets make our infinitely dense 1 Tesla mass into an infinitely thin ring 1m in radius. Each point on that ring moves around it (2pir) circumference every revolution so ~6.3m per revolution. 1000mph =~ 440m/s SO we only need to spin this flywheel ay ~70 revolutions per second, just over 4000RPM.

4000RPM doesn't seem unreasonable...

(Note:I don't think your 1000mph stacks up though. The kinetic energy of a moving mass is 1/2mv^2. So the speed of a 1 Tesla mass object which has 10 times the energy of a 1 Tesla object doing 100mph is only sqrt(10)*100 closer to 320mph than 1000. My high school physics flywheel might only need to spin at 1500RPM...)
Q's strength comes from one feature: the groups ability to predict future events.

In fact, they have a slogan: "Future proves past." Meaning that as events unfold, the things that intel that has been dropped in the past proves to be correct.

This is something new: an intelligence agency is talking to the public for the very first time about how the world really works.

I used to think the US operated as a democracy, but now I have the opinion that it is an cryptocracy, ruled by elite secret societies. Democracy is staged, public opinion is managed via propaganda masquerading as news, war is an elaborate hoax which launders money from citizen to elite cryptocratic elite.

...and this system is imploding as Trump and the American military dismantle the global deepstate.

Welcome to Qanon, the internet's most fascinating real time conspiracy - unfolding right before our eyes.

See the intel drops here: https://qanonposts.com/
Show HN: Dad Jokes Texted Daily
Hey HN!

I put this together for fun and thought I would share. It won't cost you anything, I promise not to spam you, and you can opt out at any time.

Sorry, but it will only work with US phone numbers at this time. I'm sending the messages with Twilio and its pretty expensive to send outside the US. Some people have offered suggestions on ways around it and when I get some time I'll try to work out a solution.

You can see the repo here with the database abstracted away: https://github.com/chasedehan/DadJokeJunkie
‘Stingray on steroids’: Texas National Guard has spy devices on planes
We now have government-mandated maintenance standards for some types of power utility equipment (mostly protection systems) in North America because it turns out even big companies with hundreds of engineers on staff sometimes aren't very good at maintaining stuff.
> "It's surprising how often conversations with friends and strangers revolve around our common culture."

Fairly common (because, I suppose, birds of a feather...) but none the less not quite the same as the previous shared experience. That is, you saw Program X when I saw it. Same date and time. And not all that many years previous, everyone was in the same room watching the same TV.

I'm no Luddite, but I often wonder about the effects of personalization and the loss of the shared experience. If you remove live sports, how many (media) experiences now are common / shared?
Same. I was a bit cocky when I first tried out shell check because I had been doing bash for years. Shell check flagged something I'd been using for a while and after reading the docs I realized shell check's suggestio was much cleaner and just-as-safe way to do what I was doing. Really impressive piece of software.
Has no one, the author or the comments, thought to ask their teenage kids how to waste time on the internet? My younger brother seems to be able to do so all day. I'm also stuck in the reddit/facebook/youtube loop but I have no idea how to do snapchat/instagram, what youtube celebs are popular, or other things I'm not even aware of. I remember learning about vine.co after it closed and apparently that was a huge thing.
Curious what your “routing stack” looks like.
The Physics in Racing Games Explained
Nobody knows the answer to these questions, and I'd question anyone who represents that they do. "Some time." "Maybe." "Somewhat, perhaps."

It would probably be wise for you to increase your washing frequency, nevertheless.
You _seriously_ needed Wolfram Alpha to divide 60 by 5 then multiply 75 by 12???
I'm imagining an overly academic interview question that goes something like this...

"It's been determined that our CS interviews are both random and unscientific, and we'd like to reverse that trend. To give us more control of the outcome, and to help us be more science-y, how would you design a random number generator which can be made deterministic by giving it a seed value? We need one for our hiring process."
I'm 52 and watch less TV than I ever have. I only have basic cable because it's cheaper as a bundle than internet alone (Comcast). I don't think I've watched any traditional TV since the super bowl.

I also don't have a data plan on my phone.
Asia top on economic freedom as US slips
I would think that a momentary loss of power wouldn't be a big deal, even with active cooling and a vacuum pump. As long as your disconnect is fast, if it takes 500-1000ms for the pump and cooling to come back online from flywheel power, that seems like a much easier solution than worrying about five nines. The wear in that second can't be significant.
Paper at https://www.nature.com/articles/s41565-018-0096-0
Card Readers Allow Oklahoma Highway Patrol to Seize Suspects’ Money
These days, the traffic into Seattle is very well balanced with out from Seattle, the reverse commute is kind of dead.
Seattle's Progressive Tax Law Information for Companies Earning Over $20M
You sometimes see them in 2D/3D content creation software, where there's a good chance the user is holding a stylus.
Florida and Texas do not have income tax and yet they appear to not suffer from the same ailments that the city of Seattle and SF are suffering from.

In a couple of years the city council will move to raise the head tax, stating that their new record tax receipts are not enough to implement their working solution. It is easy to spend money that isn't yours.

The city of Seattle has had record tax receipts for the past couple of years and yet they somehow are always "short" on money.
Julia has `widemul` which takes two `Int64` and produces an `Int128`. It is also not to hard to actually add your own primitive type for `Int256` (with the caveat that it needs support from LLVM, which I haven't checked)
> not in Philadelphia

isn't the liberty bell in philly?
Nethammer: [pdf] Inducing Rowhammer Faults Through Network Requests
Trump Administration Closing War Crimes Office
Seattle City Council votes for $275 per employee “head tax” on large employers
When you talk about "Strong types," what actually constitutes a type in this terminology?

Re: the semantic difference, my point is that whatever the semantics of this multiply are, it's not really "part of the language" in any deep sense -- it is just another function. Given that, the semantics of multiply is entirely irrelevant to questions about the semantics of the language.

Re: "trying to makes strong typing another flavor of static typing" I absolutely am not. The "static" in static typing very much means "before the entire program is run" not just a vague "early."
I don't know many young people that agree with that. Families, sure, east and north side is better for schools and such, since it is basically suburbia.

Most of Sodo still isn't zoned for residential.
I kind of love that Reddit has gone all in and just made it an actual hamburger icon in their redesign:

https://www.evernote.com/l/AALYMDHabuxLvLSKPlM6fMyCozTZysM2a...
Early on in my stepdadhood, my partner and I called me "Bonus Dad", a phrase we'd heard and liked as an alternative to the phrase that fairy tales have prefixed with "wicked".

One day I was mentioning this "Bonus Dad" and "wicked step parent" thing to the kids after school teacher, and she said "I don't know what you mean, my step dad was awesome!" That comment really warmed my heart.

Fast forward a couple years now and the kids just call me "dad". It probably helps that their other dad is now a girl, so I'm not really taking anyone's place? Don't know.
I imagined myself on a forum like the old days, freely typing my thoughts into the void. First thing that came to mind was who owns this content? Second thing was can I get a bigger audience posting it somewhere else?

The internet's broken and it broke me with it
Yep, that's what I do. I haven't owned a TV for 3-4 years now. I just prefer watching content on my iPad or laptop in bed. I think it might have to do with sitting all day for work. After a full day of sitting, I'd rather not go sit on a couch. Laying in bed with my iPad is much more relaxing.
When u cancel 'The Mick' no wonder
Just making a point about the economics. The environmental destruction is caused by the energy production in the case of Bitcoin mining. In the case of gold mining, it is done by the mining.
Infographic Detailing Seattle's New Progressive Tax Law [pdf]
> What would this mean for usage of the Mickey Mouse character? Would people be free to use images from the older cartoons in new work? What about more recent updates to the character's design?

Copyright protects the exact expression, but not the general concept. Mickey Mouse is already protected under trademark law, so while Steamboat Willie entering the public domain means you could redistribute that particular film, you wouldn't necessarily be able to do a lot else with the character without infringing on an established mark of Disney.
Signal isn’t really open source the way Firefox or Linux is... you can audit the source code, but you can’t connect to the network with a modified version.

It’s nice that we can audit the source code. But it’s kind of pointless if you can’t modify it.
It doesn't relate to Thread (had to Google that). It's for what's called WiFi Mesh Networking. Extending the range of WiFi networks without the need for wired connections.
>I feel like this problem wouldn't be limited to a person's use of the internet but would be an indicator of a person's lack of curiosity in general

I don't agree with that idea. When people say "The internet isn't fun anymore", I don't think this generally is a change in the person so much as fundamental changes in how the modern internet is experienced.

By analogy, if content on the internet is like a liquid flowing into a container, then it's predictable that the liquid will ultimately match the shape of its container. If you change the shape of that container, the liquid's ultimate shape (and thus the way it is experienced) changes in a predictable manner.

When people say the internet isn't fun anymore, this isn't a comment about what's being poured, but the structure in which it's received and presented.

Say what you will about streams of "information": I believe if you switch a man's wine glass with a dog dish, only a wino would say nothing has changed.
More:

https://github.com/cyanharlow/purecss-zigario

https://github.com/cyanharlow/purecss-vignes
15 मई, अमावस्या को रात यहाँ जला दे एक दीपक, महालक्ष्मी दोनों हाथों से लुटायेंगी
but then there was Spindler and Amelio. Though Spindler handled the 68k->PPC transition, and Amelio did pull the trigger on Next over Be and brought back Jobs.
Don't forget about "children".
Crazy huh? Just her text editor and the web inspector. modern art
I personally consider awk, sed, grep, cut, etc. to be "part" of bash. I don't think I ever write a script without invoking those venerable tools at least once. I often have many pipes, such as

some_command \
| grep -E 'some.*regex$' \
| sed -e 's/erase_text//g' \
| sed -e 's/erase_more//g' \
| awk '{ print $2 }' \
| cut -d ':' -f 1

I used to reach for Perl one-liners a lot, and still do sometimes when I need a gross regex that `sed -E` can't handle (See Perl Pie[1]), but Ruby has been making an appearance more and more often for handy one-liners. Roblog has a great post on using Ruby [2].

If the script is complex enough and I'm willing to take a dependency on Ruby, that is usually where I turn. Where that line is does change from time to time. Ruby makes it super trivial to call shell commands and process them easily as well, which makes it easy to integrate into existing scripting [3].

Hopefully that answered your question :-)

[1] http://technosophos.com/2009/05/21/perl-pie-if-you-only-lear...

[2] https://robm.me.uk/ruby/2013/11/20/ruby-enp.html

[3] https://stackoverflow.com/a/2400/2062384
«Current solutions are locked in to vendor platforms»

Not true. For example, mesh technology Thread is built on 802.15.4 and is very much multi-vendor. At least 4 companies make Thread chipsets (Silicon Labs, NXP, Qualcom, Nordic Semiconductor) and has 100+ member companies: https://www.threadgroup.org/thread-group#OurMembers There is an open source implementation from Google (OpenThread) who is a major member. Adoption and interest is really ramping up rapidly. Recently the spec was made freely and openly available. No royalties. I think it's really promising.

Disclosure: I participated a little bit in the design of Thread by doing a security review on behalf of Google.
Unfortunately it's a bit much to say that it's ISA independent given that it only supports 332bit x86 currently.
Why one-third of American working-age men could be displaced by robots
A vast amount of devices in the world don't support 802.11ac.
The picture-window-sized televisions that are common today look ridiculously large and tacky in a living room, IMO. I'd never buy one.
But that doesn't justify firing the programmer who wrote "%G" insetad of "%Y". If they chose to create a stupidly complex login process that involves memorising some string you're never supposed to use (because you should never be logged out), that's a design bug. What kind of idiot designs a system and says "the way to access the system is by using a memorised string" and "you should never log any users out". It's frustrating and it makes no sense.

Passwords. They're even stupider than the idiot who works for every single news company, who thought they should resize videos shot on a phone so they can be displayed on a widescreen tv, and then using that on your news app that people only ever use on a phone.

It's shocking how few companies will let you log in by sending a token to your phone or your email. It's how I bloody log in anyway, I just have to put up with your stupid password reset process and then be able to three times type some gibberish string that I'm going to forget.

As for those who log people out - well, my email is logged in on my phone anyway. If I've lost my phone no-one cares about your dingy little app. And even if they did, they have access to it by virtue of having my email account.

Bleh.
Conversations.im does just that, uses FCM to get the messages in the background. They recently open sourced push server that interacts with FCM: https://github.com/iNPUTmice/p2
>eloquent and persuasive

Nothing to do with how they conducted their lives.
Blame the Government for Your Ridiculously Overpriced Phone Bill
Tinder’s upcoming location-based feature seems a bit creepy