skysight-inc/HackerNews huggingface dataset:
Whether or not black holes have "no hair" is currently an unsolved problem.

Hawking, for instance, believes that the Hawking Radiation from a black hole encodes the information that went into creating the hole.

https://en.wikipedia.org/wiki/Black_hole_information_paradox...
The thread mentioned that leaving Github would mean losing visibility / discoverability. Just wonder why people rely so much on Github for that. Maybe all we need is a a search engine / directory for open source projects?
what about molecular motions of the mirrors themselves?
Pee-wee’s Big Comeback
It's a difference in philosophy. I think packages by default should be full-featured, and minimal variants can be created for those that want it.
> a secret training program called "Macro"

Lol
Well, that still falls under the "Not behaving in a way that damages the reputation of his/her company or of YC" and "Generally behaving in a professional and upstanding way" rules listed on that page.
Hmm, that diagram is a little misleading. It's not like the bacteria are processing the images in any way, right?! They are merely detecting light and its direction so they can swim that way. Someone correct me if I'm wrong, I guess, but I'd by extremely surprised if there was any sort of image recognition at the cellular level.
How Machine Learning Will Unlock Big Data's Full Potential
At this point, I'm honestly not sure if this thread is a series of extremely pessimistic people, or a fairly clever riff on Lovecraftian doom writing.
Given the story, I think it's fair to say nobody knows whether you're right or wrong yet.
Cruz app data collection helps campaign read minds of voters
I agree with you that if a new theory was to replace the old one for making specific set of predictions, it should give predictions of similar or better accuracy. But I do not think that replacement is necessary for the new theory to compete or be accepted; it is the new benefit it brings, whatever its nature may be, that is crucial. The two can temporarily both be accepted to coexist, if both have their strengths. For example, quantum theory does not make the same predictions as classical theory when it comes to classical experiments (mechanics, basic EM phenomena) and is largely useless in that domain. It only gives probabilities of results of specified experiments of certain kinds; it does not reproduce the old predictions (like definite trajectories, Moon phases or solar eclipses), but provides new results (like resonance frequencies of atoms and molecules and their bond energies). Similar thing can happen with a new theory of gravity; it may not give the same prediction for Mercury perihelion precession, but it may be able to explain other things, like why the inverse square law, why no repulsive gravity or why the mutual gravity force between electrons is so much lower than the mutual EM force. Explanation for oddities in Mercury motion could then wait for further data and repetition of calculations. It is natural to expect of any new theory to bring new results, but demanding that it reproduces all the old ones along is too much. That happens rarely and such expectation only prevents any new ideas from being considered.
Yes. I observed case of two media houses making mobile news apps. They both have roughly similar market share in country, and both apps are well working and okay designed.

However, during commute, the ratio of mobile use I observe is roughly 95:5. Why? Because one of the apps automatically downloads all morning news for offline reading at 6am.

Design is how it works.
I think this is called varied practice and that the idea has been around for awhile. The book Make It Stick[1] discusses a study that had 8 year olds toss beanbags at a target. For one group, the distance to the target was varied. For another, the distance to the target was fixed. At a later time, both groups were tested and the group that practiced with a variable distance performed better than the fixed distance group.

[1] http://www.amazon.com/gp/product/0674729013
CRM for government reminds me of the Ted Talk where a guy said the government should use source control. We're not there yet but it's a step in the right direction.

You guys should seriously consider using resellers and distributors btw. Gov't purchasing agents always request three competitive bids.
If you're working on something hard, and you're working on something you care about, and you're pushing the limits of what you're capable of (but stopping short of being overwhelmed completely), you can do this.

But most of the time, several of those factors aren't ones you can control. The reality is that we have to work on mundane shit that we don't care about pretty frequently. Learning how to do that is much harder than learning how to be maniacally into something insanely cool.
How much data does soundcloud host?

I can't deal with another mp3.com :( My CD backups of MP3.com in 2001 were damaged and I had lost songs for ever. It was tragic.
I'm talking about integration tests, not 100% coverage of someone else's code. If you need e.g. image decoding, you need to be able to update libjpeg, etc. ASAP after a security patch – and that only requires a simple integration test covering known input / output for the subset of features you support. Since it's automated, there's very little difference between multiple small releases and infrequent large ones from this perspective.

As for your second point, I think you're overly focused on the wrong area. Both linked and static code demonstrably have many problems over that time period – if you recompile, you have to maintain an entire toolchain and every dependency over a long period; if you don't, you're almost certainly going to need to deal with changing system APIs, hardware, etc. — linking doesn't do a thing to make a 20-year old Mac app harder to run. In both cases, emulation starts to look quite appealing – IBM has, what, half a century with that approach? – and once you're doing that the linker is a minor bit of historical truvia.
You'd probably be able to duplicate open_memstream on OS X using funopen.
That might encourage false reports to keep the work available. It is a good idea though.
Sure, but again, that's a difference in the projects—not something inherent in the way Github handles issues.
Good luck. When you make an imine with an aldehyde the principal mechanism of irreversability is that a stray reductant (available in spades in biochemical settings) takes the imine down to a primary amine. (This is not found in most textbooks, you just have to know that). Now, a primary amine is a relatively stable covalent bond, and getting selective deamination is going to be especially difficult since there's plenty of amines around. Not the least of which is the other side of the lysine that the aldehyde attached to in the first place.
This source appears to accidentally leak what "The Macro" really is. If you notice, in the email that was sent, it's once referred to as "iMacros":

> We have disabled the use of iMacros on the Zenefits network or on Zenefits-issued devices.

A Google for iMacros reveals software that does pretty much precisely what is described:

http://imacros.net/overview
Stewart Butterfield Makes the Case for Slack
As an aside this is something people absolutely do not get. MongoDB haters were always quick to point out how the database can lose data; even after the journal was introduced and that became much harder. But MongoDB failed to explain this same thing well: if you are storing payroll information you need a very robust data storage solution. There's a cost to robustness, however, which you probably don't need to pay when storing 140 character messages. Write concern is a very fundamental business decision.

In other words, when I picked MongoDB to store NowPublic SCAN data, before the word NoSQL was in vogue, even, then it was scanning various streams (including the Twitter gardenhose so many years ago) for bits of news and the ability to store lots and lots of small bits of text quick as hell was much more important than keeping all of them. Noone really cared about every single one, we were in the business of surfacing breaking news and we were a very small startup so not needing lots of expensive servers were a huge plus.

Obviously I picked a very different data storage model when I needed to store payment data at a TV station's video store...
That averages out over the timespan involved in gravitational wave detection. The waves detected by LIGO are on the order of 100 Hz while molecular vibrations are many orders of magnitude higher.
I think your calculation assumes that the waves are traveling parallel to the line connecting Livingston/Hanford. In the diagram below, 's' is the source of the waves.

H-----L-------s

If instead the waves are traveling perpendicularly to the line between those two cities, they should be detected at the same time.

s
/|\
/ | \
L-----H

Since the measured time difference is between 0ms and 10ms, the reality is probably somewhere in between these two extremes.
Very neat. I've been thinking about applying the concept of tiny houses to something that is a bit larger, enough for a family of six, while reducing wasted space: Maybe 1200 to 1500 square feet with 4-5 bedrooms. I'll be following your progress!
Weird, that's exactly what I was thinking.
How is Sacks able to assert moral authority when he was the COO working side by side with Conrad? Are there any Zenefits employees here who can tell us what the internal opinion is of the two?
A simple system for self-improvement
Oh Come on. You have never heard of the Library of Alexandria? The day this was gone, we lost one of the largest chunk of older books and parchments. We are talking about a huge collection that went up in flames.

The documents we still have now are just a tiny fraction of what existed.

https://en.wikipedia.org/wiki/Library_of_Alexandria
https://en.wikipedia.org/wiki/Destruction_of_the_Library_of_...
Hi Tom,

In the current version of GitLab you're able to add multiple labels, add a label while seeing the issue show page and the edit page should be faster.

We're working all the time to make GitLab faster and today we made the issue page load 3x faster on GitLab.com https://gitlab.com/gitlab-com/operations/issues/42#note_3670...

There should not be many markdown/css problems in the product as far as I know. There certainly is still room for improvement in the GitLab UX (especially on mobile), and we're not happy yet. We hired our second frontend engineer this week and we're looking for more on https://about.gitlab.com/jobs/

I hope your problems are solved when you upgrade to GitLab 8.4.
The eye is more advanced but the primary activity of the eye is focusing light and doing something with that focal point.I'm willing to cut the headline some slack for the general publics benefit. This is a legitimately surprising but very sensible result.
I think Parker is really, really smart. If you hear him talk he sounds like he's somewhere on the intelligence level of Patrick Collison. It's too bad he tried to shortcut a regulated industry but I'm curious what his next ambitions are.
How about "What's right with free cars?"

Very little. We know how to built communities which don't require cars.

How about "What is right with free houses?"

Oddly enough, free shelters for the homeless seem to help reduce homeless camps, hobo jungles, and Hoovervilles, and keep people from dying in nasty weather. Turns out people don't like to see signs of homeless on the streets, and are willing to pay money to reduce that sight. So it isn't "free houses" but "paid for reduction of an eyesore, and increase in good feelings." Perhaps some also consider those taxes a sort of insurance should bad times occur to them.

How about "What's right with free food?"

Again, it turns out most people don't like to see others dying of starvation when they walk down the street. Many are willing to pay something to avoid having to face that sight or feel pangs of empathy.

Constructed that way, it's no longer "free X" but "paying for Y", where X is a way to achieve Y.
I am just curious that is the speed of gravity wave travel at different speed in different medium?
What we need is something that isn't centralized. The problem that needs to be solved is how to pay for the things that you care about but, keep enough in a common pot to not only share the service but, to make systems for discovery.

Soundcloud is awesome. It's needed, it's culturally important but, it doesn't make money. We should stop thinking of things like Soundcloud like business but, more like museums with infinite square footage.

We can pay the artists as patrons directly, we can pay tour guides who show us interesting and amazing things. We have decent micropayments. What's left is the thing that hackers aren't great at, the cultural work of changing public perception.

Most artists just want to eat, pay rent and live well enough to create more art. I love that Soundcloud allowed people to experiment, get good enough to book gigs and then I could see them live.

What we need is a system that does that efficiently. We need a better managerial structure than VCs + Founders. Soundcloud is a pretty solved problem, both technology wise and UI wise. What isn't solved is funding and management.

There are so many services that would be wonderful to have but, will never be $1bn+ exits for anyone.

Twitter should be. IMHO I think it will be eventually.

Every social network gets abandoned once people put up ads. It's pretty crazy that we live in a world where conversation, speech both personal and public are strip-mined for profit.

People will eventually realize that freedom costs something. Thankfully, technology should make that cost in dollars very cheap.

A Facebook scale social network could charge $1/yr and pull in $1.5bn/yr. A decentralized FB-scale network isn't trivial both technically and socially but, it's something that we as hackers should figure out.

A decentralized social network would be a huge win for freedom of speech, thought and information. Facebook already filters everything that people see. It's a centralized, easily subpoena-able entity.

The larger, much harder problem is how do you convince teenage girls to join a service. They are both the heavy users and set the communication norms for the next generation.

The next problem is how do you build something that is wanted by society but, don't do it by setting up a relationship with a VC looking to exit for 100X what they put in.

Once we solve those two issues, social and funding then the world will very quickly become a place where we can build things that are self-sustaining, less link rot, less invasion of privacy, less filtering of thought and speech by centralized powers.
Well the nice thing with this migration is that you don't have to rip out the client SDKs. After migrating the backend to the open source stuff, you just have to change the serverURL and you can point the same mobile app to the new backend.

Thanks for your kind words ;-)
Appears that the list of requirements is inexplicably missing "Free world-class hosting and staggering amounts of bandwidth provided absolutely free" or did I miss that bullet point?
Yeah but now you have to use pandas instead of dplyr :-(
Troll hunter: Twitter cracks down on abuse with new trust and safety group
Women are better at coding than men – if they hide their gender
Show HN: Tame long embeded YouTube videos with virtual clipping and annotation
* Scientists knew bacteria could sense the direction of light.

* Scientists had been looking at bacteria under a microscope for 340 years.

* Just the other day, someone noticed how bacteria focus light.

If you ever think there's nothing interesting left to discover in your field, read this again!
Using physics to describe social phenomena can work, if it’s the right physics
That's something of a confound, though - JIRA requires licenses and is preferred by big shops with a lot of resources, so you'd expect it to be better just by virtue of having more people paid to manage it.

I've seen plenty of JIRA projects full of the same mess of open issues, etc. as well, and that seemed to run exactly like GitHub: not enough people felt it was their job or had enough the time to spend on ticket gardening.
Seo-Moz.com SEO Spam Campaign
The L2ARC is just a read cache that works alongside the regular ARC stored in RAM. If the L2ARC device malfunctions then you might see a performance hit, but your pool will remain intact. All L2ARC reads are checked for integrity, so invalid data will be rejected and read from the pool directly instead.

ZFS can even tolerate the loss of a SLOG device as long as A) the SLOG is not currently being read to rebuild after a crash and B) all writes that occurred before the SLOG was lost have been fully flushed to the pool disks.
Seems similar to this http://www.sciencedaily.com/releases/2015/07/150701133348.ht...
> The problem there of course is the "as long as people were interested in having it" part.

The problem is that ISP are actively trying to constrain torrents with deep packet inspection or ongoing surveillance of other centralized bodies. Torrents would see a much more widespread use if such barriers were removed.

> The UX of peer-to-peer file sharing will always be more complex than "go to this WWW URL" if just to avoid the free-rider/spam problem.

For the end user, clicking on a torrent has zero UX issues. That's why torrents took off so easily in the first place, and why they still exist nowadays.
Comparing the Top Remote Time Tracking Applications
Every dependency you have is another thing that people besides yourself can worry about with you or for you

Need to do X? If you write your own library that does X, chances are you'll be the only one to ever work on it. Need a new feature? You have to stop working on your actual project and implement that feature. Found a bug? No one else will fix it for you.

If you depend on a library that thousands of other people also use that does X, if you do find a feature you need that it doesn't have, open a ticket, someone will likely do that work for you. More often than not, that feature already exists, all you have to do is read the docs. If you find a bug, report it and and wait for it to get fixed, but there's also nothing stopping you from fixing it yourself and submitting a pull request.
I don't think everyone knows these things; particularly tricks like "don't start a new task right before you leave" took me probably a decade to figure out on my own. But I agree that disconnecting digitally is hard for a lot of jobs if you work on a project rather than small tasks especially, where half the work is planning, logistics, and coordination.

I definitely sleep so much better putting my phone into airplane mode about fifteen minutes before I want to go to bed though. That certainly seems fair all around, and means when I inevitably wake up in the middle of the night I don't see a pile of unread emails to deal with and get tempted to read them while I should be sleeping so I can be productive the next day!
Interesting to see that the owner of seo-moz.com also owns canadianpharmacy24x7.com and vipills.net, it is a spam network.
No. But any site that is willing to go to that length to compromise their content (for people who don't use ad blockers) clearly doesn't value their content or the people who read it. That's the message it sends.
It would be so depressing if Pandora's incredible music trait database went down the acquisition drain. I would pay good money for a service that let me search for songs by sets of traits. ("Give me some songs in minor, with technically impressive solos, with haunting female vocals, without any drums.")
Why do businesses, nonprofit organisations, schools, governments, and complex multicellular organisms require management (or seem to benefit from them)?

Yes, there are some systems which work by emergent properties alone without central organisation, but the very fact that they're limited to specific areas, and are prominantly missing in others, suggests limitations to their effectiveness and scope.
The idealized goat farmer will make a better musician than the one who simply uses others' samples. To bring the analogy back home, the programmer who understands silicon and circuits is better equipped than the one who relies on massive dependencies.
> This is getting to be a big problem with Rust. The language, or maybe its community, encourages cutesy stuff like this.

> C++ went down this road.

Also a big problem in the Haskell community. Trying to prove all sorts of complicated properties in a simple type system leads to overcomplicated design.

I don't think I'm against static code generation. But it incurs mental overhead. If you do it using a language which wasn't designed for that, much more so.
That was adorable, "ahh I'm losing it here"
That's true if you try to sell into the municipalities via the RFP process. However, we sell directly to the departments who will be using our software. We've met with great success doing it this way.

In fact, we managed to close a department in Miami in only six days--that's basically unheard of in local government software sales.
This exists: Emacs::Lisp lets you write Emacs extensions in Perl
That's tough that you feel that technical work is a race to the bottom. Do you feel like you're falling behind?
yet, both are valid ways to express yourself.
I actually can't find a source. My professor told me back in the day, and that's all I have.

The talk page on Wikipedia has a lot of discussion, including a citation of a book, but I don't have the book: https://en.wikipedia.org/wiki/Talk%3ASQL#SQL_Acronym

Someone there also keeps saying that the second reference on the article explicitly says it's not an acronym, but the current second source explicitly says it is, so... ¯\_(ツ)_/¯
That's impressive. They didn't have to put it in orbit to get sufficient vibration isolation. The eLISA team must be so frustrated about this.[2] Their gravitational wave detector is in orbit at the L1 point, and their test masses just float in space. But they're not quite ready to turn everything on; that happens in early March.

XKCD: [1]

[1] http://xkcd.com/1642/
[2] https://www.elisascience.org/
This is an awfully confident-sounding post for being so off base.
LEED is not my fav.

Yes, blogging is due, much to share.

Reducing consumption is first step, not getting caught up by what's cool is a big factor too. Rigor is required

Imo, air tightness trumps r value. Hard to do either consistently with traditional construction. Stay tuned I'll try to more on the blog.
This was much better than I expected from the title.
Yes, a toggle to filter for homosexual relationships, or even for each of M->M, F->F, M->F, F->M would be ideal.
RocksDB vs. the world
The gravity pull of the new black hole is essentially equal to the sum of the gravity pull of the two isolated black holes, and it's essentially equal to the gravity pull of the two stars before they transformed into black holes. So merging black holes don't increase the pull.

Actually, in each transformation there is an explosion and part of the mass goes away (try to not be very close). So the total mass in the final black hole is smaller than the mass in the initial stars, the rest are debris forming a nebula or something around the black hole.

(And, as the other commenter said, gravity is too weak.)
Scales are an important and necessary part, but I agree with ZenoArrow - developing aural skills is the key. It opens up so many possibilities.
I haven't fully mastered those skills yet (still working on them), but learning just a little is like suddenly having a map while trying to find your way around a city. Before, you stumble around, stopping to ask for directions and taking wrong turns. After, you can plan what you want to do much more easily.
Better video directly from LIGO/Caltech: https://www.youtube.com/watch?v=wrqbfT8qcBc

And here's more detailed from PBS Space:
https://www.youtube.com/watch?v=gw-i_VKd6Wo