skysight-inc/HackerNews huggingface dataset:
Yes, it's still true when we take special relativity into account. One good perspective on special relativity is that it sort of says, "everybody's right." That is, you abstract your "present" moment to distant positions as a 3d plane in the 4d space; someone else at the same position with a different velocity will have their present too, and those will not be 100% commensurate, but that's OK -- both of you have valid coordinate systems for any calculations you want to accomplish.

The family of all the "presents" of a point in spacetime is the set of all points which are spacelike-separated from that point -- i.e. if that point is at the origin of some coordinate system, the complete "relativistic present" is all of those points such that

c² t² − x² − y² − z² < 0

Every observer passing through a point agrees upon these points exactly; the only difference is that my t=0 will not correspond to t' = 0 under a Lorentz transform, so that my "simultaneous" at space-separated points is not someone else's "simultaneous" at those points.

(Light bubble picture: imagine that the light which shines upon an event in spacetime expands outwards with speed c, forming an expanding bubble of light. Consider two events. They are both "simultaneous" in the sense that there is an observer who thinks that they are simultaneous, if their light bubbles start out topologically disconnected and overlap eventually. They are both "time-ordered" in the other case, if one bubble is inside the other. If two things are objectively time-ordered then they are not objectively space-separated, because the points in the larger bubble correspond to valid inertial trajectories of a spaceship going less than the speed of light -- there are some spaceships which visited both events inertially. Similarly if two things are objectively space-separated then they are not objectively time-ordered; consider someone on the intersection of the two light bubbles seeing both events happen "right now"; there is always a velocity vector such that they will trace the distances back to the origins of the events as equal -- and hence that observer thinks that both happened simultaneously at their different locations.)
I've noticed this too. On my last few flights it has been so loud it caused physical discomfort (to me) and made my toddler cry.
There is work being done on crowdsourcing ambient sound: http://www.technologyreview.com/view/520606/noise-pollution-...

It's a neat problem. You can turn on smartphone microphones and listen for noise levels to measure for noise pollution and law violations, etc. However, you have to develop algorithms that filter our human conversations (for this application linked above), and the privacy implications are astronomical.

Edit: http://www.citylab.com/tech/2013/05/crowdsourcing-citys-quie...
This happened in CT when frontier bought AT&T's Uverse customers. It was painful. Switch now if you have an alternative.
CDNs/Mirrors always downloaded fast for me (<5 minutes). It could be the auto selection not working well for you - which you should be able to overwrite.
most movies I only ever want to see once. Actually, most movies I don't even finish. I watch fewer and fewer movies since I don't want to take the chance that I'll turn it off half way through or even 15 minutes in.

I can't imagine wanting to fill up my physical or digital movie shelf with things I might not even like. I'm much more likely to buy a blu ray or dvd if I've already seen it and enjoyed it. That and kids dvds for the car are the only movies I ever purchase.

Because I know that I am extremely unlikely to buy a movie I am happy to pay anything less than the purchase price to rent it if that's the only way to see it. I paid less and got exactly the value I would have gotten if I purchased it. More actually because now it's not taking up physical, digital or mental space.
> An honest question - is this really because of the talent, or simply because people there tend to work more?

The latter is an aspect of the supply of talent (in terms of available labor hours of any particular kind and level of talent available), so those aren't really two opposed options.
I can second the author's conclusion. I fly regularly and have noticed in the last 6 months, PA systems have become much louder than usual on most flights. It's especially bad if you have headphones plugged in to the XM radio -- they don't seem to have separate volume controls for the PA speakers and hardwired headphones.
> the markets are better off in almost every way

In which ways are they not better off?
Direct link to the paper CIDR paper with all the data

http://www.cidrdb.org/cidr2015/CIDR15_KeyNote.pdf

The original link is really only blog spam about it and should be replaced

Yes it's a fascinating paper. Contradicts the conventional "CPUs have stopped getting faster" story you often read
I cry. Sad guys are sad.
> Also, the NSA read and store everything you do on the Internet.

For the vast majority of internet users, this is true.

Clarification: Maybe not actually read as most people understand the term, but collect, store, and analyze.
I used crunchbang once and loved it! Also I've picked up a lot form the forum. Even though I had to be with ubuntu for reasosns, it's really sad to see #! go.
I also use earplugs and over ear noise cancelling headphones during flights. They work very well. I rarely fly United but I've noticed that some airlines are definitely worse than others when it comes to PA.

I haven't used it on flights yet but did some research and splurged on the Faber Acoustical SoundMeter (https://itunes.apple.com/us/app/soundmeter/id287615105?mt=8&...). I bought it since I live on a busy road and lots of sirens go by, adding to the general traffic whooshing. Sirens are in the high range and go over 100. Its a good app to have to check whether I'm going crazy or if it is really loud in place where I'm feeling overwhelmed with sound.

I will be sure to try it out next time I fly and provide some data. Maybe we can crowdsource samples of airline loudness.
The PA when heard over the headphones (when watching a movie, etc.) is even worse - I wouldn't be surprised if it was over 100dB. Sometimes a movie has quiet audio, or quiet moments requiring you to turn up the volume a lot. More than once I have been painfully ear-raped by the flight attendant PA system in my earphones for this reason.

Just another instance of outrageously bad customer service in the airline industry. I'm convinced at this point that they simply despise their entire customer base.
As a guy that has done some hardware for router interfaces, this was an interesting post regardless of source.

There are lots of built-in monitoring functions for the hardware interfaces. For example, the laser driver for the transmitter often drops in power before failure, so there is a hardware function built-in on the receiver side to report the avg laser power. If the power drops below a certain threshold, an alarm goes off on the monitoring software.

The author is pointing out an interesting failure mode not automatically caught. As a shot in the dark: In the receiver, the hardware is spec'd to receive 31 zeros in a row (iirc, which btw goes way back to early SONET specs). If the detector (eg) is degrading in a way that causes a particular string of zeros (or some other fixed pattern) to fail, you would see it show up much like the test that was run.

What's interesting is that the errors did not light up alarms on the monitoring. Perhaps crc errors have a threshold, and the bit pattern causing the failure was showing up statistically below the threshold.

Anyway, I'm sure there's some hardware failure-analysis guy out there who would love to look harder at that link.
Identify issues instead of providing solutions
Can worker cooperatives alleviate income inequality?
Americans have the unusual belief that it's a good idea to elect and appoint members of government that believe government is good for nothing and can't do anything right.

For some reason this attitude has not led to effective, efficient governance.
With $15M, Sauce Labs wants to make software testing faster
You can read his whole Nobel speech online and it's well worth a read. My favorite part is:

"There was a gentleman, newly arrived from Europe (Herbert Jehle) who came and sat next to me. Europeans are much more serious than we are in America because they think that a good place to discuss intellectual matters is a beer party. So, he sat by me and asked, "what are you doing?" and I said, "I'm drinking beer!" Then I realized that he wanted to know what work I was doing..."

link: http://www.nobelprize.org/nobel_prizes/physics/laureates/196...
This sounds cool, but also very scary. The whole thing is based off of dozens of cameras taking pictures of your face, and everything you pick up. Not too far of a stretch to know everything you put back, everything you bought, and with the spate of break-ins lately everything you purchased will be available on the black market. And further, by shopping at a big box store that can afford this system, your data will be sold to everyone. I just don't see this system working in a free market, thankfully.
Funny how branding works. Having never heard of, or forgotten about, CrunchBang, for a split second I thought "Tech Crunch has a linux bistro? Must be for that tablet that they made a few years ago." I recently encountered this with Plan B Burgers in DC.
And then there is like 15-20% "cancel two hours before" reduction on those :)
Weekly C++ Blogroll
DeathHacks – Tech tips for people who are going to die (someday)
I really liked CrunchBang, especially the setup scripts, which I think shouldn't be too hard to port over to a debian minimal install anyway.

For those of you looking for similar alternatives, ArchBang is pretty awesome, but I have been increasingly interested in Alpine Linux for it's native grsec implementation. I'm experimenting with using it in virtual network labs and it has worked pretty awesome so far.
Over 100 use cases and examples for iBeacon technology
I feel that it did help me. I have a work ethic that is not really found in a lot of people even at my age(30). I still love to work outside, and enjoy a good hard days labor. It has allowed me to get ahead in the IT field because I am willing to work 12 - 16 hour days, without even blinking, because to be honest, a 16 hour day in a really comfortable chair with music is pretty easy compared to a 12 hour day of bucking hale bales when it is 100F outside.

And to be honest I don't feel that it in anyway hurt nor hindered me either. I grew up just as healthy, and probably stronger then most of my peers. And still don't feel that I was abused in anyway, not to mention all through highschool I was making 2 - 3k a year in income because of that work.
I'm working on easy end user setup of vpn for this use case. Problem is, I don't know much about minecraft. Mind if I ask you a few questions? Milesrichardson@gmail.com
What I meant to ask is if it's possible with current APIs. I know sync isn't explicitly provided, but wondering if something could be backed together another way.
I've always wanted to buy some good earplugs to protect my hearing from noisy environments (es. near public transport in the city). Does anyone have a product they recommend?
I can only speak for myself, but I'm a big fan of Openbox when it's set up properly. Before I discovered Crunchbang, I would burn many hours getting Openbox to the way I liked it, installing certain packages and tweaking settings until I was exhausted from the effort. But in the end, I had a setup that got out of my way and let me focus on work.

When I discovered Crunchbang, I was blown away. about 90% of what I set up for myself was already done here, with a slightly different theme and a few different default apps of course. But I found that with just an hour or so of tweaking I could get Crunchbang to the same state I would spend a weekend trying to get to on another distro. The differences between Crunchbang defaults and my own were usually improvements, and I decided to switch to better apps after giving them a go in Crunchbang (from Gedit to Geany for editing for example).
OSHA probably wouldn't have much to say… The peak he measured would only be outside of their guidelines if the attendants screamed for the entire LAS-SFO flight and then he hopped on a plane and immediately flew back with the same treatment.

Table G-16 - Permissible Noise Exposures

https://www.osha.gov/pls/oshaweb/owadisp.show_document?p_tab...
An interesting thing that YC could do for hardware startups is provide discounted copies or license servers for some of the most commonly required but exorbitant softwares : Altium, Solidworks, Autodesk inventor among others.
There are many ways to deal with that if it becomes an issue.

One way that has worked well for us is to nominate a rotating "support guy" who handles the interruptions, attend meetings, etc.
Email is mahesh.gkumar@gmail.com. Didn't know that emails in the profiles are not public.
To emphasize pmcgrathm's point, the $60/hr "level" is for "Management/C-level" candidate interviews. If you're paying a consultant to ask "the right questions," then at that level you're paying another management/C-level person, or a very experienced "C-level" headhunter/recruiter, and they're unlikely to do it for $60/hr.

That said, the same is true across all these pricing tiers. I wouldn't consult on a Junior level interview for $60/hr, much less $30. I can earn twice that as a W-2 contractor doing boring, unchallenging enterprise architecture and software.
To me: "Please contact its owner and ask them to use cdn.rawgit.com instead, which has no traffic limit."
Funny coincidence, I am writing this from the airport where I'm in transit. Turkish Airlines does have separate volume for PA and other in-flight purposes.
A very common grammatical mistake that programmers make
I run Debian, but the Crunchbang Forums have been a great place for me to learn. I'll find tips, pearls of knowledge passed down from the masters, and even whole config files for programs that barely get represented in the normal linux distros.

Crunchbang served as repository of knowledge for a minimal desktop Linux and hopefully the community keeps the forums active.
Where can I see the list of all such Softwares (the essential and free) and the people behind them?

Is there a single place where the following details can be found?

Program Name,
Company / Group Name,
Description of the software,
Link to their website,
Yearly Budget (Required),
Funded so far (out of the total yearly budget),
How many people in the team?,
Options to donate

I feel that the real problem is that the folks behind these amazing softwares are either too busy / too nice / too shy (for philosophical reasons) to promote, organize, gather funds? And in the busy world, their very existence is forgotten by the rest of us.

If there are none like this, why not we build one and I would like to start it so others can join in later. To help these guys around the year and not just when we get to see an blog post like this one.

Any thoughts / comments ?
I borrowed this and tweeted it. Attributed to you.
Ask HN: What is the right way to learn Mathematics?
Please note that I am not asking for good resources, I am asking for the "right way".

The reason I learned to code in the first place was because of my fascination with the idea of AIs in childhood, but when I realized later on that to learn it you need Math, I was in despair. I have decided to (RE)learn everything from the very basics. I have been watching videos and solving examples on KhanAcademy since last two weeks now. (Thanks to Sal). But once in a while I stop and ask myself -- whether it's the right way. Whether I will have true insights into Math when I am done with this. I really need to know the right path before I spend years going in the wrong direction, only to find nothing.

The areas I am interested in are -- Artificial Intelligence, Image Processing, and Computer Graphics.
While I don't buy, I think if someone does so with disposable income, I don't see a problem. Honestly I could even see some people might even enjoy the process of buying a lottery ticket so they might actually be getting a value back for every ticket.

> You can't spend the time dreaming you'll win it, if you don't buy a ticket.

I think this statement is more key to a lot of things than people realize. You can never be lucky if you don't take chances. People often like to defend gambles they take in life by using expected returns/risks as a premise that they are making an "informed risk". At the end of the day, however, buying stocks, creating a business, starting a new job, etc, are all gambles.
I think in general managers (well, everybody, really) need to be aware that people have different inclinations to share. Some people are the type to speak up and possibly dominate the conversation in a meeting, others are silent until prompted. Some people need to be probed multiple times to get their true thoughts.
Mystery of the Universe's Gamma-Ray Glow Solved
I always use earplugs when I fly, and honestly cheap foam earplugs work great.
Wasn't Descartes partially motivated by the horrors of the Thirty Years war?
Get a case that you can put on your keyring. The best earplugs are the ones you have with you.
I own the "Etymotic Research ER20 ETY-Plugs", about $13 on Amazon Prime. They're much more comfortable than the cheap foam ones you can buy, they actually stay in your hear, and the tube means that you can still hear high frequencies. They reduce the surrounding volume rather than attempt to mute it. This makes them great for concerts.

There are also much more expensive concert earplugs for musicians, which do an even better job at preserving the spectrum, but I'm not that picky.
I don't believe they're scrambling for talent. I think a lot of the supposed "demand" for labor out here is a combination of your typical resume collecting from the larger organizations and bandwagon-driven "we need PhDs from Stanford to scale our shitty RoR b2b sales app; there aren't enough 'qualified' people to write code" nonsense. Furthermore, there are just more people who are qualified to write code out here. So there may be more demand than elsewhere, but there is also more (much more?) supply of labor to meet it.
a pet peeve of mine is when they do this in restaurants when calling out order numbers. they CRANK the fucking volume and then YELL into the microphone to call out order numbers when everyone is standing right at the counter!
Diffs: http://newsdiffs.org/article-history/www.bbc.co.uk/news/uk-3...
>So you want to deny that there are people who are just inefficient?

He's offering a different perspective on what the problem might be. If your default view is that these people are "inefficient", you're probably going to be a terrible manager.

>The OP made clear that the setup VMs that they do not need and ask questions

Because the OP is having trouble figuring out what the problem is. If it was as straight-forward as "These guys don't do any work" then the solution is pretty obvious, isn't it? He also says, "Two of them just work with minimal supervision". Well, if everyone was like that, we probably wouldn't need managers.
Johns Hopkins Data Science Specialization Top Performers
Researchers confirm that neonicotinoid insecticides impair bee's brains
there's a big difference between Peak and RMS measurements.
Your application has huge untested areas, which standard testing techniques can not adequately cover. You need integration tests, and you need to be able to run them locally so as not to trip up testers. In short you need a VM, since some of the dependencies can not be installed on your host OS.

When you are repeatedly asked the same question, ask yourself why? It is probably because you failed to answer adequately the question that was asked.

If they have less domain knowledge, they will be slower on technical tasks regardless of ability.

You as the lead should be providing the information your developers need to get the job down. Sounds to me like you are acting like and egotistical developer IC, rather than a team lead. You could probably find a way to help them if you tried...
Corporations are VCs too
I've noticed it, too. Also, PA announcements, when heard over headphones, seem to be super-loud regardless of whether you adjust the volume on the headphones. It's as if there is some mandatory minimum volume for the announcements.

I'll hazard a guess--and I might be completely wrong--that there is some sort of legal reason for this. Maybe there have been lawsuits in which people claimed not to have heard the in-flight announcements, and therefore, did not feel not bound to them. I dunno. It just seems as if there's a reason for this. Not necessarily a good reason, but a reason.

Anyhow, this is 100% armchair speculation. It just seems like the sort of thing that could have happened.
Every time I'm on a flight this happens. I would love an in-line filter for audio above a certain volume level.
On a related note, here's Rich Kilmer talking about Ruby DSLs way back in 2008:

http://www.infoq.com/presentations/kilmer-ruby-dsls

Good stuff from a guy who's done some pretty massive DSLs on DARPA projects.
Lubuntu has been a good replacement for #! for me. It works out of the box on most reasonable hardware, has minimal requirements, good default applications, and a familiar layout. I think it's "easy for noobs on basic tasks", but I'm not that new anymore, so I'm not sure. I use it on old machines as an up-to-date environment that's light enough for them to run. If it weren't for Lubuntu, I wouldn't have a usable computer in my house.
I don't anymore, my daughter told me to use the orange mozzarella instead of the blue e because it has more ram speed.
It'd be interesting to know how they deal with the phase requirements--normally you have boundary conditions which set up these sorts of standing waves but it sounds like these "events" would not have that and thus would have to conspire their phases so that you wouldn't get something more like:

---* *---

Probably it's something like, "each event must exist on at least two different fields; if you look at the other (~) field too then this event looks like

---*~~~~~~~~*---

so that, for example, this electron clearly collided with a high-energy photon to become a muon for a time and then relaxed back to being an electron, emitting the photon back."
Excellent answer up until paragraph three. Nothing will drive your developers (good and bad) away quicker than an a "quick morning standup", aka daily interrogation. Were you productive yesterday? Will you be productive today? What are your excuses? This innocent attempt to keep everyone on track has all manner of unintended consequences. Here is what happens to your developers calendars: Draw a box around the hour before standup. In that box write "Don't start on anything hard." Draw a box around the half hour after stand up. In that box write "Try to regain focus." Draw a box around the last hour of the day. In that box write "Do meaningless things I can mention tomorrow in standup, if necessary." Difficult tasks are rarely accomplished as a series of daily successes.

As a manager, the most important thing to remember about the meetings you schedule is that they are for your benefit. If you are the type of person who needs to know what is going on every minute, you will hold a meeting every minute. When developers need to know what is going on they simply turn around and ask, exactly as often as necessary. One way managers could minimize disruption is to walk up and ask developers what is going on as often as necessary on a per developer basis.