skysight-inc/HackerNews huggingface dataset:
It is really inefficient. A lot of energy is wasted compressing the valve springs to open the valves. This is a problem if you try to make a high-revving engine, for instance, in order to get better fuel efficiency at low speeds and good power at high rpms: to allow high-rpm operation, you need stiffer valve springs, but this significantly affects your fuel economy.

They've been working on camless valve actuation for decades. I read an article about a prototype system back in 1992. The article then said that the power requirements of the solenoids was a big problem. I'm not sure what the problem is these days. As you noted, Koenigsegg has a working prototype in an actual car (not on a test stand, connected to mains power, like the one in the article in 1992), and it seems to work fine. There's probably some kind of problems with reliability.
The fault tolerance allow you to have processes and state to be available reliably for longer than the duration of a HTTP request.

You can have continuously running processes without relying on something outside of the language. You can more easily distribute such code as an Elixir package. The code can work without relying on e.g. cron or redis being available and configured.
For example, the weird benefit that many US companies give their employees reduced healthcare premiums if they certify that they are tobacco-free
What's wrong with our friends?
That's not even close to true. You can buy all the parts to make a working 12ga shotgun in two aisles of Home Depot, for about $30.

Making beer or spirits at least generally requires you to leave the store.
Car makers ask the US to slow down on rules for self-driving tech
I don't think he was trying to imply that at all. The culture of youth means you're going to have some weird things like an older worker being fired by a younger one.
First experiment to break time-reversal symmetry in quantum walks
OK, would you settle for " … not painting a target on anyone who doesn't deserve it"?

:-)
> Last year, with support from the Department of Energy's Office of Nuclear Energy, Rabiei showed that CMFs are very effective at shielding X-rays, gamma rays and neutron radiation.

Designers of spacecraft and lunar/Mars bases are likely pretty happy about this development.
I'm curious how you see a voluntary program to pay employees to do something they should be doing anyway is creepy and/or overreach?
I can't speak for other people, and I'm sure there are a wide variety of opinions people have about that situation. But I very much doubt this is about speaking-as-in-speaking about functional programming. After all, he can write about functional programming as much as he likes, and I haven't heard anybody suggest that his blog be blocked.

But speaking as in giving a conference talk is a different matter.

Conference talks aren't really about disseminating technical material. They're terrible for that! Conference talks are showmanship, entertainment, motivational speaking, and most crucially, they are cultural signals about what--and whom--is important.

That's why there is a vastly different dynamic of attending a talk in person vs. watching one remotely or on video. You are absorbing the social cues everyone else in the room is transmitting.

So when a conference announces that so-and-so is keynoting, they are announcing that the topic of the keynote is important, and they are also announcing that so-and-so is important, and traditionally, that they are the _most important_.

One rung down is speaking. Announcing that so-and-so is speaking is also announcing that so-and-so's topic is important, and that so-and-so is important in their own right.

My guess is that what this debate is really about is signaling that this individual is important in the community. Which is not, and never will be, completely divorced from all of this individuals choices.

From my reading of LambdaConf's statements, they fully realize this. They are making a political statement about what and who is important, and how the community should judge someone's importance. Likewise, the people who disagree are making a political statement about who should be judged important in the community.

tl;dr: This is not about whether somebody can speak as in communicate, it is about whether they should be judged important. And those people who disagree with LambdaConf's choice in this matter are refusing to implicitly support LambdaConf's chocie with their attendance, not to mention communicating their own opinions, as this individual has done.

Given that the individual, LambdaConf, these signatories, and even you and I have been able to write about this at length without censorship, I'd say that nobody's right to "speak" has been curtailed in any way.
Aleph Objects, Inc. Sponsors Odoo Community Association (OCA)
Yeah... and the popular kids aren't that good at coding, just really good at being popular.
This parrot is no more. It has ceased to be. It's expired and gone to meet its maker. This is a late parrot. It's a stiff. Bereft of life, it rests in peace. If you hadn't nailed it to the perch, it would be pushing up the daisies. It's rung down the curtain and joined the choir invisible. This is an ex-parrot.
From Western Marxism to Western Buddhism
Are there any potential downsides to this stuff? It seems too good to be true.
Bit of both.

My understanding is that if you hear something multiple time, it will stick with you.
Would this be effective against micrometeoroids and orbital debris?
e-gold
tiger nation is also a good one.
Ed, I like that you've kept that perspective without having to had experience it. TBF I don't think it's been like that forever, but it's definitely taken on the role of the primary Good Engineer Burnout machine in Boston.
In the motorcycle world Ducati has been shipping desmodromic[0] valve trains for years. Not camless, but springless.

[0] https://en.wikipedia.org/wiki/Desmodromic_valve
IBM's Watson evolves in a robot body
Why doesn't Google do more to prevent Android apps from being decompiled, inspected and recompiled into modified apps? Yes, there's source code obfuscation, but that only slows down the amateurs.
> can we at least agree that all that bullshit about being a star and "graduating" is total bullshit? What a total slap in the face.

Yes, but it's just a creepy thing practiced at one company. The author somehow wants to generalize their experience to all startups.
This seems like such an elegant idea it is surprising that it hasn't been done before. I can imagine adding pledge calls to software I write myself. I can't say that for most other policy systems.
That statement works fine, perhaps even better, without "he's old".
Do you have a cite for being the 70's paradigm:
"the business will employ you no matter what you do or how bad you are" - the classic 1970s Union paradigm

No Union protects employees no matter how bad they are.
What if you shoot twice at the same spot?
> the point we make in the book is that few employees expect or want lifetime employment at a single company

Any citation about this claim? Because in my experience, it's completely incorrect.

Outside of the US, lifetime employment is a heavily coveted goal, because economies outside of the US are in a terrible shape overall with unemployment rate routinely above 10%.

Inside the US, except for white collar workers in major cities, long time employment remains the holy grail of most of the workforce, even though the US economy is in a pretty good shape overall.

Interestingly, even though Dan Lyons technically belongs to the white collar community that is probably not interested in lifetime employment, it's pretty obvious to me that when he joined that semi-startup, his goal was a lot more to write a book about it than embracing the party line and planning a long career there.

I mean... you're hiring Fake Steve Jobs and when he's out of the company, your executives try to illegally get a copy of the book with the futile hope that it won't get published... Seriously? What did you expect?
Moleskine Smart Writing Set
Packets, man. It's about the packets. And a failure to pin your certificate.
Here's the doi for that paper: doi:10.1016/j.radphyschem.2015.07.003

Unfortunately I could only find the paywalled version here:
http://www.sciencedirect.com/science/article/pii/S0969806X15...
I, for one, would like to know if you screwed people over as a young manager. That would make rather a good blog post.
Two years ago my wife and I were unable to get Aetna to pay for a home birth, even though we got it approved ahead of time. After months of futile phone calls where they basically kept me on hold for 30 minutes and then told me to fuck off, what finally got them to pay up was an angry tweet I wrote. I thought it was silly, but was advised to try it as a last resort by the midwife's billing assistant. Amazingly, they reached out and immediately paid for it in full when they saw the tweet.

I wonder how many people never try what I tried, and simply never get their claims paid after getting filtered out by their phone network. Horrible system.
All actions and decisions have numerous and unpredictable outcomes

Every time you blink, you blow up a planet with life on it
Is it possible that the pay packages that this article is considering 'large' are actually not that impressive any more as a result of increasing wealth inequality?

I don't know what pay packages are like in London nowadays. Five years ago or so my understanding was ~40-60K starting.

When an apartment anywhere costs 300K+ it doesn't seem as good a deal any more. It feels like the junior investment banker of the 1990s could have been considered to be on a path to persistent wealth, whereas now it's a fair bit more ephemeral.

Working 100 hour weeks, after the initial excitement dies down, might ultimately only really be justifiable as a path to great riches or early retirement, not an upper middle class existence.

Would I work 100 hours a week for ten times the amount I'd expect at 10 hours? No, you'd have to give me FU money for that, because the idea there is that I work until I'm burned out and then retire.
I get the sense that the reality is somewhere in between. It's definitely not everywhere, but I do see a significant amount of philosophy and meta-work happening in technology (and possibly other industries). People like to present their ideas of what makes a workplace "better" or what makes people work harder or stay happier, and many times they forget the simplicity and professionalism that has been working in workplaces for a long time now—simply treating people professionally!

I'll be honest, I'm on my first job out of college, and in the finance industry there's very little philosophy and novelty (mostly dinosaurs), but even I have seen, here and there, redefinitions of terms, like "they're not customers, they're guests" or "he's not an employee, he's a teammate" and, well, I'm not too impressed even with this simple stuff. I'd imagine a good amount of places take it too far.
Safety as a negation would be an xor operation, which leads to the wacky logic. Both of you are right though, I was probably far too generous in treating @minikites's use of the word "is" as a logical implication instead of the logical equivalence that you suggested. The resulting logic leads to conclusions that both support and refute the likely intent of the original statement. So either the logic is broken or the intent is :) If only @minikites had used the word "maybe" instead of "is"... the weaker position would have been supported with a logically consistent argument.
I hate to sound glib, the answer really is "it depends". I'd question any blanket statements being made by anyone here, especially any saying "Coursera certifications hold no value" (or the opposite).

Ultimately it's just like any other certification, certificate, diploma, etc... the value is in the eye of the beholder. If you're applying for some jobs, I'm about 100% certain there are some people who would snicker and laugh at a Coursera cert and refuse to give it any weight whatsoever. OTOH, I am absolutely 100% certain that some people will give it at least a moderate amount of weight (I can say that, as I know I would do so).

Like other certifications like, say, being a Sun Certified Java Programmer or something, you usually don't want to be in a position where you're trying to stand on that as your only credential, unless you are very young and early in your career. But if you had, for example, just graduated high-school and already gained a SCJP and a Data Science certification from Coursera, I'd be darn impressed and would probably want to hire you.

Similarly, if you've been programming for 10 years, in, say, Python and Java, and you're trying to transition away from "plain" programming and move more into data science, then complementing your existing skills and knowledge by gaining some data science / machine learning certifications from Coursera (or Edx, or whatever) could, in some situations, give you the leverage to start bridging from one career track to another.

Ultimately, it's a judgment call. Myself, given how inexpensive the paid Coursera classes are (most of them seem to be around $50), I've chosen to go the paid route for a number of the ones I've taken. I've also done a bunch where I was literally in it for the knowledge alone and didn't bother with the certification. I wish I could tell you some strictly deterministic algorithm for figuring out when/if it makes sense to pay for a given class, but I honestly don't know. All I can tell you is that I think it does make sense in at least some situations.
I have been searching for the holy grail of note taking for a while now. I switch from analog to digital and back like a manic note taker. This sounds very promising.
That does appear to be the case, based on looking at some other reviews. It looks like it works like this, at least for authors who are TomsDispatch regulars:

1. Author Foo writes a book.

2. Tom Englehart writes a review, which consists of introductory material and then a long excerpt from the book.

3. Englehart's review appears on the site, but it says "Posted by Foo" at the top. The only mention of Englehart is that it says "Tom" in italics immediately after the last sentence of the introductory material.

4. At the bottom it says "Foo, a TomsDispatch regular, is the author of <name of book>".

5. At the bottom it says "Copyright <year> Foo".

Basically everything on the page except for that lone italicized "Tom" after the introductory material makes it look like Foo wrote the review. In the case where firstname_of(Foo) == "Tom", everything on the page makes it look like Foo wrote the review.
That's a partial solution, yes. It still requires cams.

I was referring to full-on solenoid control of valves without needing cams at all.
Have you confirmed with any employers, trainers, hiring managers, etc that they actually need to be able to skip their internal preparatory steps?

Who would be the actual customer here? The potential employees? Are they supposed to keep taking random tests while they're employed to maintain their cert in your system?
Pirates of Silicon Valley, Sneakers, Primer, Ex Machina
Obvious, and emphasized, are very different things!
This is Dan Lyons we're talking about. Not some naive fresh-out-of-school CS grad. Dan Lyons spent more than a decade and a half as a journalist and editor covering tech, business, and startups.
I've saved a ton of money doing the simple repairs myself.
I wouldn't wear a fitbit for $500 a year.
Always 25% off with PapaJohns! Use coupon code 25OFF — it's even valid until December 31, 2017.

Unless you mean how they're generated.
I've read that the real discounts are in calling the location directly and asking about "walk-in specials." The franchisee doesn't have to yield as much revenue to the mothership when you avoid centralized ordering and thus can extend more price flexibility.
The part about shielding radiation sounds dubious to me. I thought shielding from radiation was mostly about mass. How is that foam supposed to shield better than cast metal of the same weight? Maybe the "foam" deteriorates less?
cringeley is the bomb
So what, you made a sockpuppet account because your original comments were so appalling that they got deleted?
It's going to be expensive, may not meaningfully improve survival in actual combat situations, and may not actually be successfully deployed.

How could this be extraordinarily effective at stopping bullets but not meaningfully improve survival? Fairly few American soldiers are killed by gunfire which directly strikes them; even fewer of these soldiers are killed by gunfire which directly strikes them on their armor. (This is partly because armor is fairly effective, partly because bullets are often non-fatal, and partly because medical care is very good.) Improved body armor may not meaningfully improve survival against other threats such as, for example, IEDs (once 60%+ of fatalities, down these days) or "the helicopter impacted terrain at a high rate of speed."
((^^HD^^))live**b..x.i.n.g^Manny Pacquiao vs. Timothy Br – GeoGebra
This Mini Computer Is Opening Possibilities for DIY Tech Projects
QML for the Web
primer is a masterpiece
It does pay well. :)
I think it detracts from his message when he uses these derogatory nicknames in anything other than in introduction. Like when he's talking about the "Swindle" (kindle), he will refer to it that way throughout the entire article, rather than just make a point an move on.
As you might notice from the article, he has a new book out where he positions himself as a startup pundit. However, since he chose to write a book , it seems he may be a bit out of touch.
How many people want to do something social, but don't want to do it with their current friends? Have you found anybody who says they need to do this and are frustrated that nothing works right yet?
The C&D letter is here:
http://lawprofessors.typepad.com/files/letter-10-12-15.pdf
and seems to specify the combination of
1) Kentucky 2) clothing and 3) UK's color scheme [blue & white].
This feels like the opening of a negotiation that is being
turned into publicity.
An underwater love affair
> So what do we surmise are the odds world-wide leadership of that caliber will arise?

I believe the only real barrier left is the Republican Party in the United States. If they will stop their obstruction on this issue, then there is plenty of political power in the world to do something.
I don't really get the point of having a "second bonnet" - there is already one covering the engine and everything else.

Lexus has been known to make things deliberately difficult to reach, like putting the starter motor in a place where getting to it involves disassembling most of what's on top of the engine (requiring the replacement of lots of auxillary "soft" parts like gaskets and o-rings in the process):

http://www.lextreme.com/starter.html

In comparison, most other makes and models mount the starter motor somewhere on the side of the engine or transmission where getting to it doesn't require disassembling much else.
I was just about to sign up for the Statistical Inference class, and happened to read some reviews before hand. I'm glad I did. A number of people have pointed out how that class diverges from the others, becomes very math heavy without covering basic pre-requisites, etc. Everybody is saying to make sure you've taken a least a basic Statistics class before taking that one, and since I haven't had a Stats 101 class, I'm going through a bunch of Stats material before signing up for this class.

I'm still going to take it since I want to finish the specialization, but I'm glad I didn't wind up diving into it blind. I think I would have struggled with it if I had.
Here, I read "start-up" as "company with a culture typically attributed to start-ups." And in that reading, the author is not necessarily incorrect.
Mathics was abandoned a few years ago when the author got a job working on ... Take a guess as to what
Compared to what, though?
How AC motors work
I'd wager that the advancements (since 1992) in batteries and electric motors would solve many of the power problems you referred to.

Yes, reliability is probably the issue. However, the same could have been said about EFI back in the day.

Full camless engine design is something we may only see in high-end racing and supercar applications for while yet.
Wow! What a straightforwardly cool and enriching post. I've had a vague idea of how engines work (as well as turbochargers) but somehow I've never bothered to get it straight.
An attempt by legacy car makers to hobble the likes of Tesla and Google.
Most students in the world are not at universities
to me it's not that you get fired willy nilly. that's fine imo.

what's scary, though, is the doublespeak you find in these environments. people act like you're part of a family. which is weird, because you're just working for a company.
The subreddit /r/scholar or the Twitter hashtag #icanhazPDF can help out.
Medical insurance in the US doesn't make any sense. Insurance is supposed to be a hedge against a large risk, but in the US we use our medical insurance to pay for common visits and prescriptions. Everyone is so used to this model that it doesn't seem weird.

Imagine if you used your car insurance to pay for gas. That would be ludicrous. No other "insurance" is handled in this manner.
Planetary Data Backup System
so, what I find weird is that everyone seems to complain that companies treat them like mercenaries, while I have the opposite complaint. Whenever I interview, I feel like I have to pretend like I want to be there forever, or else I'm not dedicated enough.

I mean, yes, of course they are going to let me go when they are done with me, and I'm okay with that. My problem is that they seem to expect me to pretend like this is the job I want or the company I want forever. They want me to pretend like we're family, rather than business associates.

Hell, even as a contractor, half the time you have to pretend like you really want a full-time long-term job to get in.

I find it pretty irritating.
This presumably depends mostly on what your delta-V is. You can be wearing Epic Foam Platemail of the Whale +5 but if your orbital velocity is 7 km/s and you hit a 100g rock at the same velocity but going the other direction physics says you're about to have a very bad day.
Have you tried using Swagger-Codegen (https://github.com/swagger-api/swagger-codegen) to generate API clients, documentation (markdown) and test spec?

Disclosure: I'm a top contributor to Swagger-Codegen
I've been pissed off at Fisher for over 60 years!

In kindergarten or first grade my father taugh me how to play chess. A few months later, I beat him, and he never played me again, and I didn't play any more for quite a few years. My parents had been frightened that I would become a Bobby Fisher-like chess monster. It still rankles, even thought they may well have been right.
Huh. Can you share links to documentation ofnthis strategy?
Charlie at what point in the book?!
> Why not drop to a "did you want the playlist, or just this video?" prompt?

Introducing breaking changes like this are no longer an option once your program has more than 5 users.

In addition, well-behaved command line programs aren't supposed to gratuitously prompt for input anyway.
I guess there is a limit to how much you want to travel.

I think that people do want to travel. Years even. But not indefinitely. The amount of time before people get tired of traveling is different.

For the author, I think that time has come.
I'm sorry.

I think their are fixes, but the average American doesn't seem to want change.

All these big corporations need to do is throw some money at advertisers, create a little scare--almost always just a scare tactic. Like there will be Death Squads, or we will have to wait six months for a MRI, and the people just cave in, and say no to any changes.

Again, I'm sorry about your wife.
Two projectiles. First one explodes on impact and compromises the target. Second one penetrates the target.