skysight-inc/HackerNews huggingface dataset:
I've never heard that computer science grades are bimodal, I thought it was that performance in programming is bimodal?

It's always been relatively obvious to me that grades were not bimodal since I could just click and see the grade distribution, which didn't appear to be bimodal.
Thanks, I agree ION drives are not going to work well on a 150+ton craft without a lot more power.

Thinking about that I think I figured it out. The earth is going 30 km/sec around the sun, so that's probably where the 30 km/sec comes from. 30 km/sec is well past single stage to orbit and they would not need a booster if they could get into that range.

Mars is doing 50km/sec around the sun, but you can cheat in a few places as your earth orbit can add ~8km /sec from orbiting around earth. That's 50 - 30 - 8 ~= 12km/s plus delta V get out of suns and earths gravity well. But you can also play with orbital mechanics to save some energy and you can also subtract the orbital velocity around mars.

Anyway, I am not sure how much delta V you need, but it's well under 30km/sec.

PS: Video had refueling in what looked like LEO, but if your in a higher orbit the craft needs less fuel to get to Mars from that orbit.
No it doesn't. Mars today is likely less habitable than post-asteroid earth. Also, Asteroids can hit Mars with the same likelihood - but with less protection from an existing dense atmosphere.

[1] https://www.technologyreview.com/s/508906/mars-astronauts-li...
I'd personally love to see a new OS come into play, I just really wouldn't want it built around a single company if that makes sense? I wouldn't mind so much if one company bank rolled the initial design if it was open source and once made pubic was too licensed and profited as open source software so that development communities around the world could not only inspect it, but also contribute, improve and redistribute freely, think android but without being built to be so Google centric.
It's an internal hiring model. There's a different one for externals.
Don't stop contributing if you're one of the good ones!
Yes, or the ever popular:

"This is nice, but my cousins, uncles, framework that's coming out next week is way better!"
But since Google owns the Android platform, they could make YouTube track usage even when it's off-screen (paused Android activity), right? Heck, that may even be feasible without special privileges. Not sure about iOS though.

I mean, if I can minimize a tab running YouTube on my PC, I don't see why I can't do that on my phone.
Because we don't have access to another pale blue dot. Turning Venus, Mars or one of the gas giant moons into a livable planet in any way comparable to Earth is a gigantic long term undertaking.
Aside from the monetary cost of hiring them, you're making the team less productive. Time is spent training, on-boarding, doing their code-reviews, and after all that it takes at least a few months of settling in to see how they actually perform. Tthere's also the opportunity cost -- whatever project you had hoped they could tackle is now months behind and at best all you have is some slapshod code you'll need to rewrite anyways.

Of course there are gradients to bad hires, but the really bad ones are a terrible experience for everyone involved.
Yet both Windows Mobile and iOS handle this flawlessly without having to wire all sorts of extra code up. Sure, it's possible to do it with Android, but it's a hell of a lot more work than any other platform.
Main takeaway:

Work on something together w/ people you like and on an idea that you are truly excited about and strongly opinionated on. Shit will get hard and most people will quit too soon (esp if they don't like each other or don't care about what they're doing). Don't be those people.
My point is basically that it just makes you look like a crank regardless of whether the subject is Docker or Mars.

Sure, people do this stuff all the time. And it's ridiculous, and I can't understand why people are doing it here or why you're defending it.

You're saying that if people are highly ambitious and trying to do some good, that makes them more of a target. And furthermore, you seem to be embracing that. I agree with the former, but strongly reject the latter.
Is that not what I stated (even if it was poorly phrased, and I can no longer edit it)?
Cloudflare rebrands
That's cool and I agree about the advantages you mention.

In your code \n must be a line separator rather than a line terminator. (Otherwise, if the last line is \n terminated, the function returns 0.)
> better allocation of resources

Let me argue that allocation of resources as a zero-sum game is a deeply flawed view of the situation. There is competition, but this is not a bucket-for-bucket transfer and given the figures displayed here as well as ballpark estimations, there is more than largely room for all of those to develop simultaneously. As mikeash points out, there is an untapped audience as well as boatloads of resources going down the sink that totally dwarf the resources put in any of those endeavours (and this extends way past "wasteful" billionaires)
This looks pretty interesting. Are there any libraries / plans that use this with React?
Thanks, but TK1 is using FP32 weights, as opposed to FP16 on FPGA. If you double the GOP/s number for TK1 to account for that, you will end up with pretty much identical performance, and the paper claims they both consume ~9W.

I'm not saying you're wrong, just that to make a convincing claim that FPGAs are more power efficient than GPUs, one needs to do an apples to apples comparison.

And of course, let's not forget about price: Zynq ZC706 board is what, over $6k? And Jetson TK1 was what when released, $300? If you need to deploy a thousand of these chips in your datacenter, to save a million per year on power, you will need several years to break even, and by that time, you will probably need to upgrade.

It just seems that GPUs are a better deal currently, with or without looking at power efficiency.
> But the airline industry is still roughly as slow, and noisy, and expensive, and inefficient and dirty as it has been for the last 40 years

This is not true. Dramatic gains in fuel efficiency have been made. Such gains are the primary driver of new airliner designs. The 757, for example, had (if I recall correctly) 35% more efficient engines, and a more efficient wing. The 787 has something like another 20% less fuel burn - again, due to better engines, wing shapes and weight reduction.

You also don't see the black smoke trail anymore that was normal for the 707. The engines are much cleaner.

There is a limit to how far this can be pushed, but Boeing and the engine makers have done an amazing job in improving the situation.
We've been running a very effective initial filter coding interview that simply tests the very basic ability to write loops, refactoring and a little recursion. It's astonishing how many people with CVs of 5+ years professional contract experience in London fail this test. We've had a <15% pass rate on that test alone.

Personally I'm not a fan of taking these interviews, but now being involved on the other side I've seen how essential it to filter out those who don't actually understand how to code.
Jeez, they should have done some vetting of the people asking questions. Some of these are horrible and a waste of time.
Hm interesting. My undergrad degree at Berkeley was pretty much solely the professor running through proof after proof, and our homework was more proofs. It actually suited me just fine, it was one of the few curricula in my life that I found presented any challenge.

My impression was that it worked fine for the majority of the other students as well, but I don't have tons of data on that or anything.
The Windows Container architecture is explained at https://msdn.microsoft.com/en-us/virtualization/windowsconta...

This looks like a use of those containers for running edge processes.
> I do think the DOL are looking at the wrong end.

Its illegal for Palantir to discriminate in the end DOL is looking at irrespective of whether or not they should be doing something at the other end.
> Further, why so much focus on this particular billionaire,

Personally, I'm worried by the fact that it's a billionaire driving this, nevermind which one in particular. If and when SpaceX colonizes Mars, what sort of life will the people up there live? Will it be a Musk dictatorship? A corporate fiefdom? Rich people remaking society in their own image wasn't exactly the space dream I grew up with.
I wish someone would have screened these people asking questions for personal/commercial interests.
Ask HN: How much do you get paid in Banglore (India)
Myself : BE,CS; Pune ; 42 lacs (all inclusive)
It is not default offline at all. http://www.youtubego.com/signup/

From the screenshots, it looks to be trivial functionality that could be baked into the existing app. Besides the ability to download and play files is not something I consider to be a "HUGE" architectural change.
Yes, you're right, I mixed those two up - you can have the car for 395/month on a 4-year long Purchase Hire Contract, or for about 600 on a 7-year old lease. My mistake.

The autopilot option changes the monthly payments in almost negligible way though.
A hiring process that can be gamed by reading a book sold by the process giver is especially flawed and morally corrupt.

A hiring process that acts as if years of experience mean nothing and which reduces your career to a score on a web page generated by a terrible constructed test is especially flawed and inhumane.

The companies that sell these products are profiting from hurting people.
fwiw I found Red Mars to be a pretty boring, badly-written space soap opera (and murder mystery for who-knows-what-reason) with caricatured ethnicities.
Same here, but I had 1h per day back in the days.
Does it really matter? I mean honestly... until we discover other life out there, nothing we do matters one little bit as long as we stay alive. We owe it to the future of our species to diversify as much as possible. Even if we go green and save the planet, our planet will end anyway. Accidents, asteroids, etc. Something will get the planet, it will.

But even if we go farm out every other planet and make it barren and even if we mined every ounce of every other planet in our galaxy... if we're the only life in the area, or the only life in the universe, it doesn't matter one bit. We could blow up every single other planet and it wouldn't hurt us at all, because we can't live there.

So the only thing that makes sense is to keep living like we are the only life in the universe, all the while trying to figure out if that's true or not. Mars isn't alive. Venus isn't alive. The moon isn't alive. It's not "reaping" a "host" any more than me painting the walls of my house is. It doesn't make one lick of difference. There's nothing immoral about spreading to other lifeless planets.
Ah, sorry I missed that they were tesla gpus
They really need to screen people for the Q/A. Half these people are idiots just trying to promote their own BS and trying to tell stupid irrelevant stories.
Had a look myself. There isn't.
I'm sure that in UK "warranty" means that all work and the unit itself is paid for by the manufacturer in case of a fault. If only parts were covered, but not labour, it would have to be described as such,
Announcing Azure Command-Line Interface 2.0 Preview
I have to disagree. I will have been working remotely for 5 years in November. Yes, there is a time and place for getting on the phone, like for last resort trouble shooting; but that is really a small part of communication in my experience. When initial trouble shooting, architecting, planning, or negotiating you need that time to investigate and consider your response.

For me, my team is mostly +15 or +8 hours from me. So relying on voice is just impractical.
http://www.youtubego.com/signup/

None of these changes seem to be fundamental to me. They seem like trivial changes you expect in an incremental version update.
Right, but my point is that the negative political and industrial facts of life on Earth will likely follow the settlers to Mars once there's a profit to be made.
Yeah, they can even make the ads from the flight systems instead and charge airline providers :-).
30 minutes by car each way
> It's not lowballing and undercutting employees to pay $41.6k to lower level people for 40 hours of work.

And nothing in the actual law prevents you from paying $41.6k or less (the whole way down to the minimum wage) for 40 hours of work. What you can't do is pay $41.6k or less and then not pay overtime. (And the threshold is much higher if you rely on the computer-related work exemption, and you have to pay overtime regardless of base pay if the work doesn't qualify for some exemption -- unlike the Feds which do at $100k [rising to $134k], California doesn't have an unqualified "high-pay" exemption.)
Only if you plan on coming back to Earth, which they're not.
"We can put a man on Mars, but ..."
In Search of the Third Bird: Kenneth Morris and the Three Unusual Arts
That is an option for folks for their future purposes. And some of them will indeed go with another company. This seemed a bit more underhanded.

Ok, maybe the package had things telling folks to always use HP ink and not a different sort. I personally would just pass most of that off as a marketing ploy. I mean, shampoo recommends I use their complementary conditioner after all.

Folks were indeed using non-hp ink with success - it isn't like the printer just refused to print with the replacements. If HP clearly stated that the machine wouldn't work with non-HP parts, it was obviously untrue.

Then a security update introduced the 'feature' that bricked the printers using non-HP ink. So one day, you find you simply can't print. Which is an annoyance if you are printing whimsical stuff, but not so great if you are printing off papers you need to take to work tomorrow or that you need for an immigration appointment or something like that. Suddenly, the printer doesn't work.

I think if it were an upfront, out-of-the-box thing (honesty and stuff) it wouldn't be such a big deal. It would be much like the DRM coffee pods. New machine, now with DRM! They didn't give the old machines an update, however, and take away the ability to use replacements.
>Will do. Appreciate the tip.

CDCFKW.zip not saying anything.. just sayin :P
Doesn't that imply that solving the problem of surviving on Mars increases the chances of our survivability in another Late Devonian mass-extinction scenario?
So I was at Burning Man ... shit, shit, shit.
Mis-citation occurs all the time. When I was a professional scientist I could only find the source for a claim I was interested in less than 25% of the time. I would find some claim and about 50% of the time the reference cited another reference and so on until the chain broke. The other 25% of the time the reference cited said something completely different to what was being claimed. Very frustrating.
Do you have any actual numbers? Links to studies?

The rhetoric is that a bad hire is pretty much the worst thing ever, and it's used to justify absurd interview practices.
> ... if these companies were governments. But they aren't: they have no power. If you're rightly scared about the combination of information and force, it's government surveillance that deserves the attention, not harmless chat apps.

In the meantime government surveillance agencies can piggyback just fine on information collected from fb, emails etc and can continue to spend money on even more scary surveillance tools.

I can give you personal example of harm: family member was a victim of fraud because of the leaked information online. I would argue that the existence of social media and it being promiscuous with our data makes it extremely easy for criminals.

> it's government surveillance that deserves the attention, not harmless chat apps.

Oh, but it's not harmless when it gets in wrong hands. The only precaution is to get assurance that those services don't collect your data indefinitely and more than necessary.
They make money by selling the snake oil that are these tests and interviews. They need interviewers to believe they are useful and diagnostic, and they need interviewees to put up with them and think it's acceptable to be put through it.
Elon mentioned that there is no physical frontier left to explore on Earth, what about deep water exploration?
Musk just answered a question that said you can come back if you want to.

"The spaceship is coming back anyway, you can get on if you want. Free"
I can certainly imagine why you'd want a mobile phone, but at least in our area, internet access is readily available at all public library branches as well.
I have the paperback and I've been following her for a long time (she's very active on Quora but I quit that site long ago). I think if you're a moderately good programmer looking for a job at the big four you only need to read Cracking the Coding Interview, maybe aosabook.org, and solve all medium problems on leetcode. This course is just the right thing to get me to actually start preparing for my upcoming Google interview.
Ask HN: How to make 1-on-1s better?
I've been thinking a lot about the jobs I've loved and the jobs I haven't.

As they say, people don't quit their job, they quit there manager.

The question is, is there something you wish you could give to your manager to help them be better?

I always felt my 1-on-1s in jobs I didn't enjoy lacked any personal engagement. The manager asked if I was happy, I said yes and the conversation ended. Could this be an area of improvement with something more structured? If so, what do you wish your manager would ask during 1-on-1s?
Experience tells me you are wrong. Experience will also tell the young ones why they are wrong.
Easier to live in Mars with some radiation and lower temperatures (and pressure) as opposed to 400C and acid rains of Venus
"According to our data, developers with at least two years of experience, who practiced even just a little (20 challenges) increased their chances of getting an onsite interview by 50 percent".

Last time I looked at hackerrank, they were 90 minutes long. So I am expected to do nearly a full weeks work to interview with some companies. Thats why I refused last time Skyscanner asked me to do this (actually they have asked me 3 times! Before I even get to speak to anyone technical).

Plus the platform is frustrating to use - I don't my write code in a web browser. I use an IDE step through debugger especially for the algorithmic style stuff that's on there. I don't particularly like writing code in a rush, as it leads to poorer quality code.
Developers are a cynical bunch. It comes with the chops.
People have come to associate things like the kick of shifting gears or the sound of the engine revving very closely with acceleration. So much so that if they are missing, they infer that the car is less powerful. Accelerating with a CVT, the car has the option of placing the engine in the max torque range and adjusting the gearing as speed increases to keep it there. If you take your cues from the first set of behaviors, this might not give you the same sense of acceleration.

(I have a 2008 Altima)
That's like 63k USD. how much experience do you have??
> Nobody's making you participate in this venture. If you don't like it, then you're free to go do whatever it is you do like.

It should make its way to HN guidelines.
This analogy fails when you consider Chinese and similarly encoded written systems. Sure, there are methods employed that use radicals in order to provide phonetic "hints," but written Chinese is predominantly acquired through rote memorization. Many countries that use written Chinese today have comparable literacy rates to countries that use syllabic and phonetic systems. What have they done right that took phonics for us to do?
Getting people to Mars is the easy part. Making Mars sustainable is a lot more difficult.
> So why are you upset with this one and not all those others?

Because most others aren't constantly being worshipped by people on HN and the like. Musk worship was the reason I stopped bothering with the technology subreddit.
This is likely, but our current methodology for assessing the fast and the slow is so atrocious that it's doing more harm than good.
HP has just bought the Samsung printer business. That's one less choice if you want to simply stop buying HP printers. If HP is allowed to keep doing its dirty tricks (sneaky firmware updates and all) then things are only going to get worse.
Israeli startup Stemrad is building first anti-radiation suits for space
>and it's the cities that have to bear the increased costs of road construction & maintenance.

So raise taxes on cars to disincentive this behavior.
For me its the fact they expect you to take the time out to do this crap before even getting to speak to anyone technical about the job.
Coming to the US, Amazon has lost so much value to me. The $49 minimum order for free postage stops me buying things. I just open eBay and the same item ships for free.

Yet in the UK I switched to Amazon from eBay because it is a much better service.
>> and those that are of a more iterative bend

And that would be me ;-)
Yeah, but as you mentioned you have several devices to use for different purposals and all of them need a free outlet when in use. With Plugzr, you have all these devices combined in just one single device - yet keeping your outlet free for further use.

Plugzr has a built-in charging dock, which needs no cables at all, as you can just plug your mobile device on to it without any cables. Additionally you have 2 USB ports which you can use with your existing USB cables.

BUT - with Plugzr you have a WiFi enabled smart socket which can be remote controlled AND which can do the power metering for you in real time via app. AND you have also a built-in smart LED light (with up to 16 million colors) which also can be controlled via app.

Cheers
Seriously. "My question is if I can give you this gift!"
My thought exactly. Seems like 90% of the people in the audience trolls.
Yeah, all questions should've gone into a queue for review as the talk was going on. I had to shut off the Q&A; this was just cringeworthy.
An alternative to to hand-written SVG is to use a (Go) library like svgo [1] to generate the markup programmatically. More info is also at [2] and [3]

[1] http://github.com/ajstarks/svgo
[2] https://speakerdeck.com/ajstarks/the-other-side-of-go-progra...
[3] https://www.youtube.com/watch?v=nuDO1oQxARs
I think he meant that you can go anywhere physically on earth, if you want to.

You can go to deep water.
That doesn't mean we've been everywhere in deep water, or even on land.
Show HN: Boxer.js – a library for creating rotating 3D boxes with HTML/CSS/JS
How much of the time for <= 256 bytes is from the overhead of parameter checking?

That is, I'm tempted to start using cffi for my code, but years ago I remember timing ctypes + Python type checking vs. using a C extension. I remember the latter being noticeably faster, enough to justify the extra time it took to implement the extension.
Watching live the announcement and presentation by Elon on https://www.youtube.com/watch?v=A1YxNYiyALg

Where the hell did they get this audience from? Is this hosted on a frat house with some academic invites?

There's a dude jokingly saying that burning man felt like mars with a lot of shit and no water, there's a guy plugging his comic book, there's a guy making a joke on how we should send Michael Cera to Mars, a girl complaining about Space X not hiring people from other countries, a girl asking to go on stage and give him a kiss, a guy that identified himself as a local idiot that I'm pretty sure is completely drunk, ....

There are some good questions too, but I just can't understand it.

Elon just went on stage and delivered a plan so ambitious you couldn't even imagine. I have thousands of questions, and astonished these people couldn't think of anything else.
Which is why you shouldn't be asking questions that have specific answers.