skysight-inc/HackerNews huggingface dataset:
> Pinterest provides entertainment, product discovery, and community.

This is kind of a non-statement. You could say that just about any internet based social network startup provides "community" and "entertainment" -- and yet many completely fail. This is quintessential grasping at straws and a posteriori reasoning.

> Snapchat enabled a new type of communication by removing self consciousness.

So did Yik Yak, so does IRC, so do anonymous forums, so does Kik. Again, this is kind of a ultra-general non-value value proposition. Why Snapchat got funded has nothing to do with the idea -- and everything to do with traction.

> Airbnb provides quality lodging at low prices.

So does hotels.com or (if you haggle a little) Craigslist.

> Facebook provided authenticity, exclusivity, and increased information density through timeline.

The timeline wasn't around when FB launched (back then we had the wall). I'm not even sure what "information density" means (or if it's even a good thing), it seems like 20-20 rear-view justification for FB's success. MySpace probably provided more authenticity, anyway (I could customize my page way more).
Email me (email in profile) please, would love to connect.
The company I currently contract for (not my own) has some of these right. The hard part, of course, is getting everyone to sign to a standard. Sometimes they're good, sometimes they're bad, i.e., IoTivity, which is a steaming pile of shit. It will be interesting to see if this takes off, because it could knock a few companies on their asses.
That doesn't make the assertion that you need async notation for any large project to not be painful any less ridiculous.
Congratulations to everybody involved! One of my earliest memories is watching the Challenger launch in my school auditorium. I'm glad my daughters can have the same experience with a much more inspiring conclusion.
I was not aware of this, do you have a link to any of that info?
On the other hand, part of politeness is helping others feel better even if you go a bit out of the way to achieve it. American society would not be harmed by more of this.
"There are far more men with two years of Uber experience than there are women."

Which might mean that women move on to better paid jobs faster than men, right?
> Signals are definitely a pain point on Unix - they're decently easy to implement on the OS side, but you just have to think there was a better way.

I imagine kqueue would be one of the better ways?
> Harmonic sells products where a large portion of the cost is derived from licensing codecs like AVC and HEVC.

So, wouldn't they directly benefit from switching to free codecs? It will increase their profits by removing their licensing costs.
As a mechanical design engineer (not of cars, of other vehicles) I can't think of any systems that you'd need to modify if you don't plan on driving the car again. This is all off-the-top-of-my-head theorycrafting, so I could be wrong.

Space is only -1 atmosphere and even then, it only affects sealed systems. For the rest, they'd equalise. Also, cooling in in space is actually fairly gradual as there's only radiation, not convection or conduction. Let's go through the systems and evaluate what that means:

For structural components, nothing will really change. After all, we built spacecraft out of aluminium before. The ISS has to cope with this more, as it goes in and out of sunlight every 90 mins, so it gets something like 15 cycles of high/low temperature a day. The thermal shock of going from darkness to sunlight is the main issue, but this won't be passing through the earth's shadow constantly since it'll be orbiting the sun, so changes will be far more gradual.

Bigger issues come from different materials joined together, such as steel to aluminium, since they expand at different rates, but that's not really a problem here and even if it is, it'll just crack a bit at the seam. That's not going to cause the car to explode into little fragments.

For unsealed systems with fluids, they'd just boil away in the vacuum before desubliminating into little frozen droplets and bounce around or whatnot.

The only sealed systems with fluids in them that I can think of are tyres and brake lines. Tyres tend to sit at about 30-35 PSI, which is ~2 atmospheres. They then have to endure significant heating/cooling, dynamic pressures of spinning, etc. so an extra atmosphere wouldn't cause issue from a pressure point of view. Ditto brake lines - you stomp on them with a mechanical advantage and they never rupture.

I think you'll find the worst damage will be to the paint over time, which will fade more aggressively since it's not protected from UV sunlight any more.

edit: I forgot the batteries, which I believe are a sealed unit. They might have just dropped the battery pack from the car. Not sure what a vacuum would do to them as I don't know enough about Li-Ion battery design to comment.
Ah I see, like
struct B { ~B( ) noexcept( false ) { throw ...; } };
struct A { B b; ~A( ) noexcept( false ) { throw...;} };

I guess the saving grace is that most C++ devs are aware of what could throw in a destructor because it is rare and C++ 11 made this more difficult. Just don't and design around it. If the destructor fails use it as a choice to terminate or ignore.
The LUT based architecture is starting to run out of steam, I think a CGRA sort of architecture is the future, but programmable logic startups will likely fail, and there's approximately a zero percent chance that Xilinx or Altera would try anything that new.
1. Superior by offering app-based hailing, real time location updates

2. Ability to share rides

3. Ability to review/report bad behavior (on both driver and customer side)—this along was a notorious problem with cab drivers. And I bet terrible customers used to be rampant too, but they were paying the drivers so nobody cared.

4. No cash. No tip (arguably more controversial thing they got rid of).
Huh I am surprised that the boy scouts taught you to do that. Sawyer filters are cheap and boiling with a fire can be free. I view filtering/boiling water like wearing a seatbelt, it's not particularly expensive of inconvenient and it will seriously improve your health in situations where it turned out to be important.
Since 2012 the SpaceX Dragon capsule has been under AI control for rendezvous with the International Space Station for grasping and docking. It uses computer vision to estimate its pose relative to the ISS and steers accordingly.

Source: Andrew Howard of SpaceX, who is in charge of this software and has to endure the stress of each rendezvous. Screwing up could kill the ISS crew.
I'm still impressed beyond words that they were able to glue basically 2 reused rockets onto a 3rd rocket and then not only have a successful test flight but return 2 of the 3 boosters.
From my observation rather than first hand experience, buying dresses online is like playing roulette. The models bodies rarely match the customers, so how the dress will sit and flow is near impossible to tell. I have enough trouble buying dress shirts online!

Not sure how VR would solve this, non-VR 3D people models that could be customized in various dimensions, along with models of the dress and simulation of the fabric could improve the shopping experience.

VR is probably more applicable to buying items for the home, rather than clothes.
And the article does not say / make apparent where this information is from.
The intro Rust book says you can easily find crates for green threads of you really want them. Is this not the case?
Similarly: wear your seatbelt. Almost every single car ride I have been on didn't need it, but you don't know you needed it till it's too late.
What are you talking about. That gif is showing the fairing separation. There's no sphere.
Yeah, Twitter switched to an algorithmic feed in 2016 [1]. There is an option to turn off "Show the best Tweets first," but I don't know if that will actually cause the entire feed to be chronological.

An annoying thing about Twitter that I experienced recently is I started getting notifications for "top Tweets." I had to tell Twitter multiple times that I didn't want them before they stopped (there was no option to put an immediate stop to them).

[1]: https://www.nytimes.com/2016/03/22/technology/personaltech/p...
I missed seeing the mentioned article, but I wonder if this is an inevitable result of the natural fallacy that has taken over Western culture.

Let's all get back to the Earth and live the way many of our ancestors did: dying off in our youth or dealing with either preventable and crippling diseases or even just wandering around with weird diseases that just make life far less enjoyable.

On the one hand, if we were to take this approach, it would speed up natural selection for us and whatever germs develop to kill us. But for chemicals and things we do for purification of water supplies, we can at least control the chemicals and how often we use them, and I have yet heard of a any really serious bugs that can survive chlorine or just pure heat.

I guess I just can't grok the way people claim to wish to live in the past, but what they're really describing often is similar to how we would describe living in a third world.
Unless you really believe our feces is cleaner than most, that unfiltered water your drinking could very well contain the feces of someone ignorant enough (or a pranking trollish person) to drop a deuce into the local stream.

And I have a great appreciation for just how blunder headed we can be, so it wouldn't shock me if and when that'd happen.

And ultimately, what's the real goal of the original article? Is it to make sure people increase their risk? Or to provide some confirmation bias to those who will do it either way?
It's interesting that in Soviet rocket engine school engines count by pumps, so, e.g. RD-180 is one engine, one pump, two chambers. In American rocket engine school engines used to count by chambers.

In this sense R-7 is remarkable because it has a good overall success record (most launched rocket) and 32 chambers working at liftoff. Some of those chambers are rather small - about 3 metric tons of thrust, about as much as main chambers on British launcher Black Arrow - but still.
Elon said in the press conference afterward it was just a mannequin in the suit, no instrumentation.
> Being an asshole is not a gendered trait

When considering a sufficiently zoomed-out view of all the different ways to be an asshole, I think you're right. But the particular form of asshole-ishness in this thread– swaggering in and immediately starting with demands ("You will revise your mozconfig..."), responding with passive-aggressive logical handwaving about how the person will never be listened to again ("you are dismissed from all further conversation on this matter...")– is strongly gendered, in my experience, and it's all too common in the open-source world.

The Atwood/Gruber Markdown spat, the Debian/XScreenSaver version warning, and the Bootstrap/JSMin semicolon debacle are all good previous examples of the same dynamic here. In all cases, there were no or very minor actual technical disagreements; all the sound and fury was just men digging in and refusing to give an inch of ground to another person who had very good points, while being as aggressive as possible to guarantee a real resolution couldn't be reached. We could use a lot less of that.
This makes me excited to be human again. I need to do something more meaningful with my life.
My cabin was on a very clean lake, but one year my friend canoed to the far end of the lake to find a dead deer in the water.

The deer was not there the year before but anyone drink the water that year better treat the water first.
Promethean Planetary Care – Review of Oliver Morton's the Planet Remade
As it happens QT does support rich text inside labels. Basically it can interpret a subset of HTML markup to render complex labels. See [1]

[1] http://doc.qt.io/archives/qt-4.8/richtext-html-subset.html
A restart failure indicates there may be a systemic flaw in all Falcons that could impact recovery efforts in the future as well as other missions that depend on reliable restart capability. One would hope that they have enough telemetry to diagnose the cause.
Star Wars is soft sci-fi as opposed to hard sci-fi like 2001: A Space Odyssey.
There was just a press conference where he went into some detail, with the caveat that it's all still very early information.

Basically he said that 2 of the 3 engines didn't start up correctly, and caused the booster to hit the water at a few hundred miles per hour.

I'm guessing the dive into the water was purposely missing the barge when it detected the problem, as they have spoken about this capability in the past when they were first making attempts at landing the rockets.

He also said that as long as they have the footage, and it's cool looking, they will post it somewhere!
I'd suggest going to Philly to taste the water ice, but from what I understand it was recently sacked.
Wow I'm an avid cyclist (though not by the definition of this article, since I take the subway to work and back (there's no alternative)) and I had never heard of a velomobile. That is really cool.
The time is a misleading metric. My commute is easily in the twenty minute timeframe by car, but also only twenty minutes by bike.

Not that I think this is an answer for everyone. I certainly recommend it, but as in so many things, it is no panacea.
> Also, something nobody has talked about yet. Falcon Heavy is capable of something no other US rocket is really able to do yet, launch new space station modules (or new space stations period).

I'm pretty sure one can launch space station modules on regular Falcon-9 as well. Russians launch some on Soyuz rocket.

Surely FH is more convenient for big stations.
No car is ever going to be as green as a bicycle. Forget cars. A motorcycle is probably the smallest powered vehicle that is street legal. Smallest one still will weigh at least 250lb. Moving just that mass alone, you’ve blown your energy budget vs a bicycle.

Oh I suppose you could argue about the environmental cost of producing the extra calories consumed by the cyclist. Growing and transporting that grass fed steak after all is going to require a whole lot of energy too. And not the clean kind. But you are still already operating at such a handicap, that there is no way a motorcycle, let alone a car, could compete.

On the other hand, unless the entire place is for bicycles only, what is the cost in human life for accidents caused by cycle-car interactions? Or the productivity cost for not showing up to work on rainy snowy days? I guess all you valley dwellers should probably cycle to work to save the planet for us all. We will applaud you from our AWD monstrosities here in the North East.
Musk elaborated this during the press conference. Said the core booster hit 100m from the barge at almost 500kph.
Having signed the a couple of those NDAs. The foundries are mainly concerned about their standard cell library, and any information that may let a competitor understand the details of their lithographic process. Most engineers just use the cell library from foundry, but cell library does contain information about a foundry's process.

A lot foundries will let you make chips without using their cell library. You some times have to make complete custom components in the analog world. (Be warned this a ton of work and is no easy under taking)

However, even if you developed your own cell library for a particular foundry. It will still be tied by an NDA since it may leak information about how the foundry handles optical proximity correction and uses phase shifting (of light) for their process to increase resolution. Also how many layers it takes to implement something and how each of those layers have particular characteristics may reveal some of the chemistry and material science used to dope the silicon or create certain structure for their process.

~edit a few typos/omissions~
I am admittedly stretching the argument thin, but I still hope you see my point.
Feel free to spread the word in the techLA subreddit:

https://www.reddit.com/r/TechLA/
I looked around my office expecting that someone else was watching and as stunned as I was. No one else was watching :(
In re #4:

> 4. JSON is a non-starter long-term: it sucks for small devices. They need a binary format that is easy to parse.

ASN.1?

https://en.wikipedia.org/wiki/Abstract_Syntax_Notation_One

> ASN.1 is similar in purpose and use to protocol buffers and Apache Thrift, which are also interface description languages for cross-platform data serialization. Like those languages, it has a schema (in ASN.1, called a "module"), and a set of encodings, typically type-length-value encodings. However, ASN.1, defined in 1984, predates them by many years. It also includes a wider variety of basic data types, some of which are obsolete, and has more options for extensibility. A single ASN.1 message can include data from multiple modules defined in multiple standards, even standards defined years apart.
Though I would argue with some of the author's assumptions about carbon footprints and power grid challenges, he's right that fewer cars ultimately means a better environment and less carbon. No argument with that.

However... As much as I'd love to just tell everyone to ride a bike to work, or the grocery store, or to drop off their kids, or whatever, the reality is that in most cities (especially US cities) a car is a requirement. City planners assumed everyone would have one, engineers overbuilt roads for them to the detriment of walking or biking, and businesses and residential areas are often far apart from each other.

In order to achieve a more efficient transportation system, we'll have to redesign and rebuild our cities, and that simply isn't a realistic short term goal. We should work on that, reset our standards, change our zoning laws, and encourage denser living spaces that are built for people instead of cars, but we have to recognize this will take decades.

So in the mean time, solar panels and an electric car DO have a material impact on carbon emissions, and I'd encourage everyone to begin that migration until such time as we live in cities that don't require cars.
Non-paywalled article https://www.irishtimes.com/business/work/german-union-ig-met...
In my experience, it all depends on location.

I know people who have been drinking unfiltered stream water for 20 years with no ill effects. The key is to make sure that the water doesn't pass through any human inhabited areas.
I would support that.
Great user comments:

Covfefe_Jesus • 8 hours ago
If it wasn't for the "Old River Control Structure,"
upstream, the Mississippi would have found a new path to the
sea and New Orleans would be history right now.

Aedes • 4 hours ago
If it wasn't for Captain Shreve removing the Great Raft, a
log jam that blocked the Red River/Atchafalaya confluence,
the Mississippi would still be flowing through New Orleans
without the Old River Control Structure.

SpartanWarrior • 2 hours ago
If it wasn’t for the Reelfoot Rift, a failed
longitudinal tectonic border that bisects the North
American continent, the Mississippi would be flowing
through Chicago into the Great Lakes regardless of the
Old River Control Structure or Captain Shreve.
It's such a shame that so many people with Elon kind of money aren't doing anything to transform us into a spacefaring species. Why doesn't apple have a mars program? What the fuck are people doing with all the money?

Awesome work by spacex. They are peerless, except if you want to count massive superpower governments as peers.
The Crooked River near Smith Rock is downstream of a lot of land, including the city of Prineville, a couple of reservoirs and a whole lot of rangeland.

BTW: like patio11's standing invitation, if you're ever in Bend, say hi and we'll have a beer.
SpaceX has been keeping their launch prices pretty consistent, even when they couldn't know how many F9 stages they would actually recover. I think they've factored in testing losses into the price.
No, it doesn’t prevent a proprietary system from being built, but it does provide the end users/customers a choice to support products that uses an open system.
You made an incorrect assumption based on bad logic. The parent didn't say they didn't look like rocket scientists, he/she said that they could pass as PR people, regardless of whether or not they were rocket scientists.

Let me phrase it a different and rude (sorry) way. "You know they're including real engineers because there is at least one person in the spotlight that would never be employed by a PR firm."
I liked that course a lot.
Many of the ideas were easily transferable.

I would love to have applied test driven development to my courses.
I think he said in the press conference that they weren't planning to reuse the core or boosters. (But then mentioned later they wanted some of the parts? IDK)
Yeah. But when people start writing wrappers like SCOPE_EXIT that call user code inside destructors, suddenly the users of those wrappers don't have any way to know they can't throw exceptions.
The Supersonic Parachutes Carrying NASA's Martian Dreams
"Also we have building codes etc that regulate construction work" by that statement I'll assume American.

Are you familiar with this: https://en.wikipedia.org/wiki/Millennium_Bridge,_London ? (also see Tacoma Narrows for the classic example - wind loading, rather than people but resonance is resonance). Bridges do fail when people jump up and down on them or at least cause resonance based effects by simply walking in lock step.

You might be unfamiliar with resonance, which is a right bugger to deal with but Sir NF and co designed a bridge which was a suspension(ish) job but looked flat. It looks lovely but I recall looking at it and having misgivings (easy to say now). To me it screamed transverse loading, which isn't the normal thing that an IT bod shouts about.

He (Sir Norman Foster) had a part to play in this beauty amongst others: https://en.wikipedia.org/wiki/Millau_Viaduct#/media/File:Via... - the WP article does not really do it justice at a glance.

"Also we have building codes etc that regulate construction work ... but there is not equivalent for computers." - My point exactly. There should be, and then perhaps m'learned friends could then get involved to debate the matter with something to work with. At the moment it is bollocks.
I just don't get it. Broken? The darn thing has done almost exactly what it was designed to do. VIX futures went up after hours, way up, and XIV went way down. That is how an inverse VIX futures product is supposed to work. I would buy some right now if they hadn't announced liquidation.

People are acting like the ability of a product to go to zero, or close to it, should be a deal breaker, i.e., that such products should not exist. That is crazy. Individual common stocks go to zero (bankruptcy) all the time.
Right after having his wrist slapped, for some abnoxious reason.

It’s really strange to see people who are genuinely interested in knowledge and sharing a learning experience get shut down.

It also is just upsetting because Cody’s Lab contains so much interesting material.
Forget cars. A motorcycle is probably the smallest powered vehicle that is street legal. Smallest one still will weigh at least 250lb. Moving just that mass alone, you’ve blown your energy budget vs a bicycle.

Electric bicycles are much lighter than 250 lb, and are definitely street legal.