skysight-inc/HackerNews huggingface dataset:
I don't have any personally, but the Plantower sensors are pretty straightforward. They just use standard UART serial, you can use an Arduino or even a simple USB-to-serial adapter, the only catch is that it must use 3.3V power and logic. Their datasheet describes how to wire them up and talk to them and you can also find plenty of code examples online.

The PMS7003 is a very accurate laser based sensor with forced airflow, I trust it. Sharp also makes a much cheaper analog sensor based on IR, but I didn't get very reliable measurements from it.

Edit: here you go https://learn.adafruit.com/pm25-air-quality-sensor/overview . Is for the PMS5003 but that's basically the same sensor.
You have full control over the incoming event object, so you should have complete control over inputs. Connections to services depends on your setup of course. If you can route to your VPC, you can access those private resources too. By default, it will use your local AWS keypair, but I believe there is a way to assume an IAM role as well.
That's a strong claim when the news is about "so many taxis sitting idle in parking lots and garages that they have become known as “taxi graveyards.” ". Is there any actual data on active time for each cab?
If only it was that easy. I can't remember which was which, but one company needed to put an aerial on the roof which my landlord rejected (even though it would save the 15 tenant units here shitloads of money), and the other one simply didn't have lines to our unit, and this is right on Russian hill so pretty Central SF in my opinion.

Comcast has a functional monopoly in my area, and that has been true my entire life except when I lived abroad. Our suburban home in Wisconsin, and again in South Carolina. Five different homes in Houston. Three in California. I shudder to think about the amount of information Comcast has on me, particularly if they snoop my network activity.
Regular exercise 'best for mental health'
Revolut are a nightmare. After using it for several months and fully verified I apparently entered a CVV incorrectly on one transaction. Revolut blocked the card but with no notification, and no inapp indicators, all showed normal in app, all toggled enabled for maximum flexibility. It took ages to figure out, but swiping the card or using online was now returning to the merchant 'FRAUD/STOLEN' marker rather than just insufficient funds, this lead to Ayden blocking me from merchants and other hell. Best of all support kept telling me my account was fine and all enabled, it was only after Twitter escalation I learnt about a backend block their support staff couldn't see. Ridiculous, weeks to sort, dozens of tickets, suggestion to train support staff or provide in app indicator of block was ignored.This shit still happens today, avoid Revolut. Fintech can be rough, it ain't all great, tread carefully. Oh and they delete feedback from forums if not positive lol
Like "free" roads then, or "free" police, or "free" non-polluted air.
Take another look. Everywhere that is not green means that trucks, garbage trucks, UPS vans, and every other delivery service has to pull over and block a potential bike lane to make a delivery. That would be true even if every green area was open, and nobody else was parked anywhere. There is a reason that parking garages charge what they do in Manhattan, and its not because there is parking available on the street. ITT are people who have clearly never driven in the city, let alone made deliveries.
Re: credibility---as for my realm the same can be said about Blake Richards.
Reflecting sun's rays would cause crops to fail, scientists warn
Agreed. I was concerned about ordering mine based on the reviews, but after looking at a lot of reviews, it is because people didn't read the manual(or, couldn't understand it's Chinglish). The actual product itself works well though, and the readings were within a few percent of my friends Fluke 985(~$5k particle counter - because he is a HVAC professional).
If you operate any kind of Bitcoin related service where someone discusses their wealth (message board, wallet provider, etc), then being able to turn an IP address into a physical address could have resulted in very lucrative forced-entry events where threat of force was used to leverage private keys.
Wow you have some epic karma AA - haha, cheers!
How do I know if I have an independent local ISP? I only see a large ISP advertising in my area.
Which Juul? All I can find with an admittedly short google are the vape guys.
Because outside of hyper dense cities roads are "public transit." Making them free to use (if you've already paid the costs associated with a car) has benefits to all that are large enough that increasing cost beyond what it takes to upkeep them at some subsistence level is not in our best interest (except in a few dense cities).
Absolutely, but this exposure made it much easier to do en masse, plus made it possible to dox targets who otherwise have good OPSEC and aren't easily identified.
Not off the top of my head, but here's a tutorial on how to build one. The Plantower sensors are pretty easy to use.

https://learn.adafruit.com/pm25-air-quality-sensor/overview
A lot of Christians talk a big game about charity and such. But once I started becoming familiar with LDS folk, I was really impressed. They’re Christians in ways many other denominations only claim to be.

KSL-TV (LDS-owned NBC station) has an AppleTV app, and watching the SLC local news is far more interesting than I thought it would be. And there’s far less needless murder and mayhem plus more “good” news than is available in my market.
For the curious:

Images: https://duckduckgo.com/?q=north+sentinelese&t=ffsb&iax=image...

Info: https://en.wikipedia.org/wiki/North_Sentinel_Island

A group of indigenous people, the Sentinelese, live on North Sentinel Island. Their population is estimated at between 50 and 400 individuals. They reject any contact with other people, and are among the last people to remain virtually untouched by modern civilization.

I think they should be left alone.
Thank you so much for posting this. Kept waiting for my Revolut invite, but now I know to steer clear.
> my general impression is that doctors live under this illusion that patients will somehow succeed in making lifestyle changes

> Also, they prefer to try medications like glucophage before they resort to insulin.

A couple of points: 1- the targets set by associations like the ADA actually assume the patients won't be able to make significant lifestyle changes; for example the ADA A1C targets are higher than for healthy patients. The diet changes they preach are not that radical, e.g. cake is bad for you but you can have a really tiny slice and offset it by not eating bread. This belief isn't that unreasonable; FDA requires that medical labeling be targeted at a 5th grade reading level.

2 - And glucophage is much easier for patients to manage than insulin both in dosing regime and simply caring for the drug.

3 - Finally the insurance companies' actuaries have figured out that maintenance therapy of this nature has the best cost/outcome ratio.

To that last point: I had "adult onset type 1" due to an autoimmune condition. The endocrinologist I was sent to was only interested in maintenance therapy and not at all in looking for root cause, even though I presented with a body fat of about 14%. She finally admitted that even if she did look into it the insurance companies would hassle her for going off the reservation without a good excuse.

But my no-insurance primary doctor and I and a rheumatologist were able to dig into root cause and now I am "cured" (of diabetes at least) thanks to treating the underlying condition (note: this is glossing over a lengthy period of unpleasant work). Which is actually cheaper for the insurance companies, but honestly how many patients have the training to be able to be involved in their care to this degree?
Receipts are problematic as they enable compelled voting.
Because the value is in not being commodified. Not giving API access is worth more than charging for it.

If all of your credit lines, checking, savings, and investment accounts were an API call away, the institutions providing those no longer build relationships that can be profitable; they're simply utilities you could swap out interchangeably. As such, they're not a fan of this idea.
I don't see how that is inaccurate. Can you explain?
Salt Lake City is not a very conservative place. Yes, it is crazily Gerry mannered by pie slicing into a bunch of red congressional district, but SLC itself is fairly left of center just like any other big city in the west.
The issue we are discussing is bike lanes. My whole point is the space just isn't there, and issuing tickets to trucks making deliveries in the vast areas that don't have parking isn't going to make it any better.
I've never had any affiliation with any transportation company or lobby group on any side of the issue, nor have I bought or shorted any relevant stocks. I admitted my dislike of Uber and their peers very explicitly, but I'm only biased in the sense of having considered the issue and formed an opinion. As are we all, if we've thought about it enough.

Not sure where bribery entered the conversation. The person I was replying to said that Uber spent $2 million / year on legal expenditures to affect the debate in NY, mostly through advertising.

I have no reason to assume that this was any more bribery than PR campaigns and lobbying generally are, and indeed I presume it didn't go beyond that.

The mention of the taxi lobby having "bought" de Blasio and the City Council was from the comment I was replying to, which I quoted to marvel at the tone of the conversation which Uber has managed to shape so favorably.

And the public support which I said Uber has "bought" is, as I noted, "legitimately real" - they just fed skewed information to the public, which is not a bribe.

(They do give lots of loss-leader promotional incentives to make people use and like their service, but we usually categorize that as marketing and not bribery without elements that are absent here.)
Pittsburgh has this, too. A dedicated transitway from downtown to the airport. It was a pretty efficient ride when I used it about ten years ago. But at the same time it seemed kind of wasteful.
I've worked for a company that measures PM2.5 in the past. Using a HEPA filter to remove PM2.5 seems unlikely to me. Perhaps there's something more going on here than I've picked up from a quick skim of the site (perhaps there's some sort of cyclonic separation happening) but I'm skeptical this is actually removing particulate at that scale.
> My idea was to put all articles (posts) in a single org file

Unfortunately, this is exactly what I'd like to do. Does anyone have cool examples of this alternate workflow?
Right, and my point is that you essentially can't. For my address the best you could do is narrow it down to ~30 or so homes that share the same first digit as my address. For this to work you have to:

(1) Have the IP address return the right location

(2) Not have duplicate street names in that location

(3) Have a single digit address OR be the only home starting with that number

That's going to be a pretty rare combo. Probably less than 1%.
> if thier average selling price per phone is still only $235 [...]. Even they sell mostly low in phones.

Irrelevant for the exact same reasons as the other statistics above: selling more and more low-end phones decreases that average prize without decreasing the number of high-end customers.

> Epic didn’t even bother supporting but two Android devices at launch

You say this and link to an article that says it's some sort of exclusivity deal for the first 30 days, not actually lack of support for other devices.

Like, counting on the chance that people give credibility to a sourced comment without bothering to read the actual link? Or what was that about?
New Yale Study: Every Portfolio Should Include 6% Bitcoin (At Least)
With org, either typically you are showing the data, or you reference it elsewhere. You can have a session going that is holding a reference, however, it is much easier and more practical to send it to table or a file. (I almost said "local file" but that isn't necessary, either. It mostly does as you would expect with TRAMP style filenames.)
How is this different than just breaking into houses in rich neighborhoods?
So the future of CS is employing the existing research to other industries?
From what I have read in multiple posts on Quora, HN, web (in general), there seems to be a common thread in all the answers - that the future of CS would be to take the existing research of the field and applying it to the industry problems. This makes me wonder, are there no new areas of research in the CS, apart from the list that everyone knows? - AI, ML, DL - Computation (Quantum, Cloud, Edge (embedded devices)) - VR, AR, MR (and XR), Robotics Software, etc.
Have all the CS technologies have become a commodity (been democratized)? Where are they headed? Is the field (of research) becoming static? Has all the research in the field been converted to a product already?

What's the exciting new topics of research that are being thought about (or are already happening) just to take the CS as a field forward and not because an industry is guiding that research?
Stupid poor. Always trying to get something for nothing.

/end homer simpson
For some reason, I cannot 'up' vote you. But I like your positive attitude.
The Polymath Project is another great example of crowdsourced research:

https://terrytao.files.wordpress.com/2015/07/polymath.pdf

https://en.wikipedia.org/wiki/Polymath_Project
Taking Omid to the Clouds: Fast, Scalable Transactions for Real-Time Analytics [pdf]
Contention-Aware Lock Scheduling for Transactional Databases [pdf]
A) Of course they have incentive to do so. They Also have incentive to hide it tho.

B) Not dealing with 3rd party manufacturers seems unrelated to the discussion. Can you expand?
Can we send Comcast a bowling ball? An undrilled one? I'd love to see how they fsck that up.
Ask HN: Experiment Reproducability for a production machine learning system
We are currently working on a machine learning backend and are currently looking at “experiment reproducability”, meaning the ability to go back to a particular release of the environment (code, database schema, data contained) to assess the accuracy of our model(s) at a given instant of time. I was wondering how the community deals with the above challenge. Are there tools that help with the same? A search yielded https://dvc.org/.
Okay, but why that particular set of hoops to jump through rather than some other set of hoops to jump through? Why should the university have to stick with one set of hoops to jump through just because it's the one they happened to pick decades ago?
The Psychology of Computer Programming (and its Japanese translation, プログラミングの心理学) is one of my favorite books and a must-read if you're interested in computer programming AND human being. It's the only computer-related book that makes me emotional and urges me to be a better programmer AND a better person. I'm sorry to hear this.
Fiat currency gets value from the fact that it is legally required ('by fiat') to use. There is no such requirement for tokens.
> Does anyone know why this happened?

I was at Box at the "peak" of the HHVM hype. Honestly, the biggest thing that doomed HHVM in my eyes was lack of macOS support. You simply couldn't run it on your MacBook. Invariably, that meant you had to have a VM somewhere running it, and that made debugging compatibility issues really difficult. Finding and reporting issues was a grueling process and made it almost impossible for most folks to offer meaningful contributions.

When PHP 7 was announced, all the attention that was on HHVM was split between HHVM and the official Zend solution. Folks didn't want to take up HHVM support if PHP 7 turned out to be amazing. IIRC, Etsy–who employ(s|ed) Rasmus Lerdorf–was a major holdout and drove a lot of mindshare away from HHVM. By the time HHVM got to a point where it was "reasonably good" to work on, PHP 7 was out. And the performance was pretty much comparable for most workloads.

Nobody really ever cared about Hack. Nice things like compiling your PHP code into a sqlite database (I forget what they called it) was really hard to do for a codebase that didn't start on HHVM or used many dependencies. I remember bumping into some unfortunate performance issues around regular expressions and spooky Unicode support bugs. The benefits weren't really compelling and the drawbacks were hard to overcome.

At the end of the day, it was just bad timing (or, you could argue "too little too late") and being developer-unfriendly. Getting your Drupal site moved to PHP 7 was an infinitely simpler choice than getting it running on HHVM, even if HHVM had a 20% perf advantage.
sonic.net (and pair.com, for hosting) are two companies where I have always been delighted on the few occasions when I had to call tech support, due to the intelligence and effectiveness of the people on the other end of the line.

It's just such a pleasure to talk to someone who is actually listening to and thinking about your problem, instead of simply reading from a script.
Just to be clear:

Our current election system is rag-tag, federated state-by-state, mostly-insecure, run by non-technical volunteers, and cannot leak a national database which links citizens' identities to their vote.

Your election system perfectly implements a standard set of zero-knowledge proofs, probably implemented and maintained by experts. These experts can count and cryptographically prove the totals without being able to link citizens' identities to their respective voting choices. At the same time the citizen is granted ultimate control over their data such that they can reveal it to a third party in exchange for payment. Thirdly, a given citizen's voting data is plausibly deniable to any other party so that the third party offering payment cannot aggregate and sell the data. (Otherwise you'd be building a public nuisance that tyrants could leverage to punish citizens for anything in their now non-repudiatable voting history. This is also why I write "perfectly implemented" above.)

Do I have this right so far?
This isn't downtown NYC. The point here isn't so much to use space more efficiently as it is to provide a means for people to get around without cars and get a foot in the door for mass transit so that when they do need more mass transit it's easier to do politically (expanding an existing thing vs creating a new thing).
Imagine if you need a lot more than two HAProxies and they aren't in the same rack/subnet; that's where more sophisticated techniques come in.
That is exactly what Stack Overflow uses: keepalived to manage a virtual IP between two decent sized baremetal HAProxy servers (w/ bonded 10G nics). Works great and combined with DNS or Anycast based load balancing can scale pretty damn well. Definitely worth investigating as a KISS approach. To quote a recent Atwood tweet:

"if I have learned anything in my career, it is the shocking effectiveness of building ... literally the stupidest thing that could work. (And then iterating on it for a decade.)"

https://twitter.com/codinghorror/status/1026332543153389569
But they are also heavily investing in expanding it (recently opened silver line) . Dc is banking heavily on the future of that rail where NYC seems to have quit caring entirely.
Why exactly is a phone app involved? If I were designing this thing, DIY or otherwise, the CGM would talk to a dedicated micro controller, which would in turn talk to the pump. A phone, if used at all, would get an extremely limited API to read the glucose level, see the pump history, and perhaps change the control parameters within a narrow range. The point would be that no input from the phone should be able to kill or incapacitate the user.

And the controller would beep if communication were lost.

There would not be an Internet API to change any parameters at all.
What's the moral difference between political ads and donations to a political campaign which will presumably spend that money on ads (or other campaign related expenses)?
Why a Cap on Uber in New York Would Be a Major Blow for the Ride-Hail Giant
can you share what other books delivered moments like that for you? Really curious
These are not really good fields to target unless you’re planning to fund tons of psychedelics/chemical research (which is probably illegal) under the guise/goal of intelligence augmentation. There is tons of research in “AI” etc. Most of the ideas are bad, it’s not like there are ideas that are getting overlooked.
There's no legal problem with them spending as much on ads as they want, of course.

But if public opinion is mobilized as a weapon through very selective presentation of the issues in ads, in a disproportionate way that leaves the public with a skewed picture of the pros and cons, it has the same indirect effect of pressuring the politicians to act in the company's interests. The public can't react in their own interests if they don't have the right facts, so then polls will legitimately show what the company wants, by and large.

Roughly the same problem arises if they fund a heavy "lobby your elected officials" campaign, targeted only at their supporters, with no equivalent resources mobilizing those who disagree - and indeed they did this.
basically glb-director is the same as just using haproxy + bgp

BGP (really ECMP) doesn't handle failures gracefully; that's the benefit of GLB.
Reading around, it's the controller software that is DIY, and it's grown to the point where a DIY device has been built to run the controller software. The sensor and pump/actuator are proprietary Medtronic devices, connected to the controller via wireless links.

The DIY controller came about because Medtronic didn't secure their wireless traffic and the protocol was reverse egnineered. New units now come with a secured wireless link, but the existing units remain unsecured. Consequently the project is constrained by the number of unsecured units remaining in the field?

Reading the project's website the FDA has been in touch with the project and so far the interaction has been constructive. The makers seem keen to have the safest system they can and the FDA seems to want to engage. I'd guess the project's future lies in being able to team up with someone who can provide ongoing access to sensors and actuators?

Wishing them much success!
If you don’t mind me asking, what was the underlying condition?

I’m fascinated by endocrinology and rheumatology. We know so little!
Realm Five, Inc. | Software Engineer, Firmware Engineer | Lincoln, NE | ONSITE | FULL-TIME | https://www.realmfive.com
Realm Five is developing disruptive solutions to automate production agriculture. Our solutions utilize IoT (Internet of Things), data analysis, and automation technologies. Our stack includes Ruby, Javascript, React-Native, C/C++, Go, AWS, and LabView.
We develop the hardware, firmware and software in-house. We are hiring for a variety of positions:

Full Stack Web Developer(Jr./Mid./Sr.)
Mobile Application Developer (Hybrid)
Embedded Device Firmware Engineer

Holler at justin.collier@realmfive.com if you're interested in helping us solving big problems in agriculture around the world.
I don't always control my inputs. I use a variety of libraries (like explained here: https://www.reddit.com/r/rust/comments/8ygbvy/state_of_rust_...) so I'm more for the overall idea.

But for this specific case I use https://www.newtonsoft.com/json.

Eventually could incorporate the idea in my arsenal and maybe build a format streaming pipeline utility that can use across platforms.
Mormons are the kindest and hardest working people in the country. They understand taking care of each other in ways no one else seems to, and I think that is most of the reason why Utah is so functional. Christians that actually act what they speak in nearly every way.

An aside, smog is really bad in Salt Lake due to its geography and that is probably one of the reasons they are taking this so seriously.