skysight-inc/HackerNews huggingface dataset:
The timing of the deletion is what seems suspicious. On the other hand, it could be related to Christian Rudder's somewhat disastrous keynote at CHI (the largest academic human-computer interaction conference) last week:

https://www.reddit.com/r/chideviance/comments/8eenaj/people_...

https://www.reddit.com/r/sciences/comments/8edxm3/controvers...

But anyway I agree that this topic is gasoline-soaked and unlikely to produce much of value.
Have you ever tried fasting? One of the biggest issue while fasting is too much energy and difficulty to fall asleep.

Have you ever tried to focus on a hard problem at work after a big lunch?
If Tesla's autopilot is clearly 3 times better, put out the data. I know me and many other data scientists would be happy to analyze the data and see how Tesla autopilot is doing. Surely if Tesla's data proves out their point, why not release it?

In general, I think autopilot is a controversy magnet. From its name to its seemingly speedy initial rollout, to the highly publicized Harry Potter death, to the recent crash. Not to mention, anything to do with Musk and his futuristic ideas gets huge play in the press, though the actual reality is the features are quite slowly rolling out and are fairly underwhelming given the hype.

Also, the hype about this being self-driving: this is basically only a highway assist system, there are numerous challenges around the ~30 MPH, suburban/urban driving challenge to overcome. At that speed range in particular, I think lidar could be useful to Tesla, since it'd provide even further data in a variety of conditions, thus redundancy and more potential for completely safe driving in this most tricky and unsafe speed range where one must interact with pedestrians, bikes, and various things entering the roadway.
If you need this sort of update frequency, you can host it yourself and rerender whenever you want.
I doubt it's all that significant, it's a really small portion of traffic compared to a web page, javascript, css or images... and with caching even less of an impact.
Seems like a simple mirror coating (or gold foil) on the pilot's visor could mitigate. Or, if pilots don't have visor, make each aircraft have a few pairs of anti-laser sunglasses if they are being bothered.
We built a photoshop for websites
Ask HN: Does/did your job matter in the grand scheme of things?
If so, I'd love to hear more about it and more about you.

To be clear, I'd love to hear from people working on genuinely significant things in the modern/IT history of homo sapiens. Things that made or will make history books, things that STEM students learn at the uni, things that literally reach billions of people daily, things that initiated new areas of research, etc.

What do you do? How did you get there? Was it on purpose or not? Describe the significance of your work. Did you stop doing it? Is so, why?
That was quite a panoply of different species and cross phylum? parasites. A couple of wasp parasites were mentioned - recently a paper was published speculating that there are more wasp species than any other because almost every insect they studied has a separate wasp parasite for both the adult form and juvenile form. It's just that some of them are so small they didn't know to look for them.
https://www.theatlantic.com/science/archive/2018/04/parasiti...
One could also phrase such a dystopia like this about western civs.
How about percussive sounds, such as a cymbal crash? These show very high frequencies in a Fourier analysis. Wouldn't that invalidate the application of the Nyquist-Shannon theorem?
Side project: machine learning model to recognize elements from web page screenshots (forms, buttons, hero banner, etc...)

Location: remote (raleigh-durham area of NC a plus)

Technologies: JavaScript, python, tensorflow

Email: fontanezj1@gmail.com
Sean is the kind of advisor that makes being a graduate student both exciting and sustainable. He's always upbeat, supports us professionally, etc., so it's always particularly sad for me to hear from students who have had bad experiences with their advisors.
Hey!

What's the layman's 2-minute definition of a time crystal?

The name makes it sound very sci-fi, like it might have the ability to travel through time (!)
I'm amazed at how brazen/obvious of a cheat the code here is:

Tipton’s extra lines of code first checked to see if the coming lottery drawing fulfilled Tipton’s narrow circumstances. It had to be on a Wednesday or a Saturday evening, and one of three dates in a nonleap year: the 147th day of the year (May 27), the 327th day (Nov. 23) or the 363rd day (Dec. 29). Investigators noticed those dates generally fell around holidays — Memorial Day, Thanksgiving and Christmas — when Tipton was often on vacation. If those criteria were satisfied, the random-number generator was diverted to a different track. Instead, the algorithm would use a predetermined seed number that restricted the pool of potential winning numbers to a much smaller, predictable set of numbers.

Admittedly, this is based only on the description from the article, which says it is describing pseudocode. But obviously, once this code is found, it's game over. Apparently the audit process for lotteries is terrible enough that this didn't matter.

Compare this with the auto emissions cheating scandal, where the algorithm was complicated in order to hide what was happening, so that the code would not be obvious as a defeat device: http://cseweb.ucsd.edu/~klevchen/diesel-sp17.pdf (see pages 6-8).
False starts in search for Golden State Killer reveal pitfalls of DNA testing
Sure, and I guess my point is: If you haven't invested in those things, waterfall-esque deploy processes are just as bad and perhaps even worse because there's more chance for confounding changes to cause a nasty error.

The only reason waterfall-esque deploy processes work without those things is because companies often waste tons of people-hours on testing things out in the staging environment (which requires time, obviously).
Have you noticed how <custom-elements />, see https://en.m.wikipedia.org/wiki/Web_Components, have become google web fundamentals, see https://developers.google.com/web/fundamentals/web-component....

Nobody discusses v1 vs v2, x-tags vs webcomponents polyfills even though mozilla had it right (all-in-one js vs typed sub-sections like shadow DOM)

Having worked on both XMPP and CustomElements I couldn't agree more.

Gosh, I've even already written on the quasi-impossibility to use Android as a non-google open-source system, see https://news.ycombinator.com/item?id=14516538&p=2#14526788

So kudos to Mozilla once again, they're the one pushing real FOSS
As far as I can tell, only the last lecture is available.
>athletes are lousy at identifying whether and why they are sniffling.

Not an expert, but wonder if this is caused by a hangover from the endorphin dump from the marathon. I felt that way afterwards.
Actually the moon is only 1.3 light seconds away, so a ping of ~2.7s to the moon is possible!

Mars would be annoying to communicate with though: 25-44.8 minutes for a roundtrip signal.
I'm a software developer with absolutely 0% experience in physics, so if this is a basic/silly question then mea culpa.

If the atoms "flip" when exposed to an electromagnetic pulse, it seems like this could be used to represent state at the atomic level, so highly relevant for computing.

Is there any current indication of how "stable" this flipped/non-flipped state is?
Yahoo has already broken itself into smaller companies. It was a giant* not so long ago.

(*at the time, when the sector was much smaller)
Okay, this is an extreme case, but why are they so dangerous when there's only 1 laser?
I'm genuinely interested, as it's always told to be such a hazard.
TBH, the more I read about the '60s/70s counterculture, the more I'm convinced Nixon wasn't so bad after all.
and the reports of 1.0.0.1?
I curious if they are in Common Criteria evaluation? Is there a target of evaluation available?
I work on communication systems for cutting edge home renewable energy systems. It has its good days and its stressful days, but overall engineering solutions to complex and meaningful problems rocks pretty hard.
To be honest, I really don't think laser/LED chanels are being used.

I've never seen a remote control quad copter sold off the shelve with IR LED TV remote style I/O for it's tranceiver control system.
The rise of the pointless job
???

I don't think I've taken part in any community without a set of rules in all my years. Even 4chan has a "code of conduct". The creation of a code of conduct has not been considered offensive right up until a few years ago, where suddenly certain groups of people started objecting to communities having rules even as simple as "don't be an asshole".
Running is probably the worst sport as far as caloric expenditure is concerned.

A serious endurance cyclist or swimmer will certainly go through 3000 kcal on a normal training day if not more.

I've burned an estimated 5000kcal daily on the bike for weeks. What's more is I know these numbers are very accurate as we train with power meters that record our energy expenditure with minimal error.

It's important to distinguish between serious athletes and average people who exercise. It's possible that truly competitive athletes - for instance, who run 120 miles a week to your 30 - will be much more likely to get ill from their efforts. It can take serious fitness - and a mentality acquired only by years of serious training - to push yourself to the extent that you fall ill, and maybe the recreational "athlete" described in this text can't reach that point.
Maybe I’ll get a prescription for readers next time. I got progressives last time I was at the doctor and love them for when I’m around the house.
As a machinist and building maintenance engineer, I can almost guarantee any ill feeling you're experiencing after a trip to your local gym is due to the air quality.

Gyms are rarely purpose built facilities. Rather, theyre rented and renovated spaces. In turn, airflow in the structure is planned for light industrial or office space. Almost no thought goes into the fact that gyms are sometimes hundreds of occupants moving the air at two to three times what the OSHA or planning documents indicate. Paints with VoC's, sealants, and even offgassing plastics from gym mats or new equipment can turn the air quality from decent to garbage in a few hours.

I was once contracted to fix an air handler issue at a fitness center. The root cause was a set of 6 un-ventilated panini presses that were placed near the front desk as part of an effort to sell snacks and sandwiches. The added smoke and particulate had decreased the filter life and burned out a blower motor. The solution was either get rid of the electric grills, or start replacing 30 day filters every week.
Just like all the others!
No, that is not the definition of rent seeking. The definition of rent seeking is:

"In economics and in public-choice theory, rent-seeking involves seeking to increase one's share of existing wealth without creating new wealth."

An example of rent-seeking would be lobbying against the construction of new housing to inflate the value of one's own home. A non-example of rent-seeking would be renting your house out to someone else. More from Wikipedia/economics 101:

"Rent-seeking is distinguished in theory from profit-seeking, in which entities seek to extract value by engaging in mutually beneficial transactions . . ." such as a transaction between a property owner and someone seeking to rent that property for temporary use.
It should be reversible, sure. Just let me know when you find a standardized, correct, one-to-one mapping between JIS codepoints and Unicode codepoints. Also make sure it hasn't changed in the lifetime of the oldest software that anyone is using.
You know what happened when radio was invented? Fascism happened and played train.

But computing and robotics? Even "just" the things that are already done, plus the things that are already on the horizon? Meh, someone will "make something" and everybody will sign up for it, and it'll be fine. And hey if nobody makes anything, or nobody signs up for it, that'll just mean there is no real need. To stop and reconsider anything would be silly.

For wiser and smarter people, we are the material of horror stories. Look no further.
Especially with deadlift, back injuries are no fun at all.
I often find tutorials about C language miss details about standard object-oriented programming with C. How to do inheritance, type checking, fields and methods, ref counting and so on. The practices are used in almost any C software today but rarely covered systematically.
> Chinese dictatorship is panicking; it’s economy is en route to a crash

China is big. Population-wise, militarily and economically. Big economies don't quickly crash in regime-changing ways.

Absent incompetence, the elites will live well for a generation. After that the pattern, as most dictatorships, is familiar--a generation or two that leech amidst decline before a third or fourth which must make radical changes or be violently overthrown (e.g. through insurrection or invasion).
The random-salt has to be stored, at least for the length of the authentication request, because the server needs to generate the same hashed-hashed-password as the client to be able to match and authenticate.

> Alternatively a timestamp would be just as good.

I don't see how that would work at all.

I also don't see the need to go any further in detail about how this scheme will not be better than the current best practices.

Never. Roll. Your. Own. Crypto.
https://security.stackexchange.com/questions/18197/why-shoul...
Hard to think of good examples. Bad Lieutenant and Bad Lieutenant: Port of Call New Orleans are very different takes on the same theme.
On the "sell you a server but can't guarantee when you'll be able to spin up" part, they also don't charge you till it is running. It's not like they say: sing up, spend $x on a machine, but there's a 50/50 change it won't start, but Your charged anyway...
That may be more due to inadequate preventative sunscreen/protective clothing per outdoor time, every one who spends time outdoors without it shows signs of skin aging like the a/b test in one, truck drivers, with the side closest to window showing significantly more wear and tear versus the interior facing side.
In addition to sunscreen, there are nowadays a lot of arm/leg covering just for SPF protection even in hotter temperatures - I always wear the arm protection/eyewear when outside.
I was thinking more like ISIS in Syria, a highly asymetric conflict. They were highly adaptive and used drones, etc. Also, they were not opposed to using disposable people, it would be very easy for them to force kids to spread out and use laser pointers. So what if a few kids get killed, it could be worth it if it distracts the helicopter for a short time, maybe it lets more valuable assets hide or allows a better shot for someone with an RPG.
Fifteen years ago this was the same with Linux. Everyone was asking for MCSE certified professionals. And yet, my Linux experience has been invaluable over the years and supply and demand for highly specialized skills have worked to my advantage.

If everyone is going one way, it's not necessarily a bad decision to take a slightly different path. I've been able to build a career and a business on the alternate path.
I would love to get into this, and I'm sure I'm not alone.

Any specific beginner-friendly resources that you would recommend?

I thought of starting with something small and defined, like upgrading my TV's sound but even that comes with a variety of bewildering options.
A Prime Square
Journey to find my home (and how can you find it too)
Helicopter can lay waste from several kilometers away, and it’s very hard to hit at that distance, being only a small dot in the sky.

Also drones.

But I can imagine someone rigging a contraption to aim automatically. That would be bad news for the choppper.
Before I even look at the source code, what license is this under?
Ask HN: What are some innovative startups in smart cities or mobility space?
CHRONEXT – Cologne – Fulfillment Software Engineers – Developer (PHP)
CHRONEXT | Cologne | Fulfillment Software Engineers - Developer (PHP) | Start-up with all kinds of goodies | Full-Time | ONSITE |German & English | https://www.chronext.de/karriere

What We Do: CHRONEXT is an online platform for luxury watch trading. You can buy or sell fine timepieces, as well as use the expertise provided by our certified watchmakers to repair, service, or customise their existing collection. It is our mission to soon become the market
leading online platform in our business.

Tech Stack: PHP 7.2, Symfony 4, Vue.js, CI / CD, TDD, AWS-Stack etc.

The Team: We are an international and fast-growing developer team that uses SCRUM.
If you want to know more, please drop an email: christin.haierhoff@chronext.com
Can you elaborate on how this is different from how a quartz crystal works. I assume it's related to the following.

>That’s the “ticking.” In addition, the ticking in a time crystal is locked at a particular frequency, even when the pulse flips are imperfect.

I assume this is not true for quartz?
Training Makes Runners More Efficient, but Not Cyclists
Springbuk | Principal Backend Engineer | Growth-Stage | Full-time | Indianapolis | REMOTE | Competitive Salary + Equity

At Springbuk, we’re undergoing a major platform re-architecture in response to our rapidly scaling customer base. We need your help to lead that transition from monolith to microservices and from data analysis that works to data analysis that scales.

• Product: Health Intelligence Platform for Self Insured Employers, Brokers, and Wellness Companies (https://www.springbuk.com)

• Raised our $20M Series B in Feb. Total money in ~$25M.

• Strong revenue and product growth 3 years in a row.

• 1500+ paid employer customers on the platform

• Tech: Ruby, Python, Postgres, Elasticsearch, AWS

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https://hire.withgoogle.com/public/jobs/springbukcom/view/P_...
California housing crisis may lead to economic one, says report
I mostly want to try to spread more information about this sector of the economy, it is interesting, and I really wish there were more competition.

Right now there are competitive garden walls if you want to use Zeiss, essilor, rodenstock, and Hoya lenses it is a nightmare to keep everyone current, and lab networks are very difficult to use for end user opticians let alone patients.

If you want to disrupt opthalmic dispensing

Start by making good EHR for offices with good product and lab network integration.

None of the big boys have gotten that or lims with solid legacy support going yet.
I love NPR, I love Pocket Casts.

But it feels weird to me knowing that I donated money to NPR, and that money might be used to purchase a private company.
I wonder how you go about computing this in 1913.

I'm not even sure how I'd begin now, besides brute-forcing it. I guess you know you can't have a run of too many large primes - since you'd "run out" of sufficiently large numbers to make the rest of the rows or columns add up.
IoT Giving Chipmakers a Lift – EE Times
>There is a well documented precedent for this exact behavior being considered to be sexual harassment

By which you mean there's exactly one instance of it having happened in a completely different community (a Python conference) with a different CoC?
One of my early thoughts with some of the driver assist technologies was "oh cool, I can take off my jacket while driving, since the car can pay attention in that short time span." It was at that time that I realized that there was a problem with autonomous driving: there is a gap where it's short of allowing true inattention but is usually safe enough that it is going to train users to be even more inattentive. The natural consequence of this is that autonomous driving, at a certain point, will decrease safety, not increase it.

Waymo seems to realize that this is a problem, and is actively pursuing a development model that doesn't release self-driving cars except on the other side of the unsafe gap. Tesla seems to be trying for a constant incremental improvement model, which means they're going to be putting people into the unsafe gap... and their marketing department is going to be counterproductive.
Yep you are correct. It seems like the tires would have to consist entirely of a fairly elastic material, preventing the use of banded or radial designs.
Much like they look now. You might call ship designs a local maxima but the physics aren’t going to change any time soon.
Light filters? We know the exact frequencies after all, and there is only a handful.
I guess this research is wrong then?

https://nutritionfacts.org/video/preserving-immune-function-...
Private security is not a guarantee and someone could always send a suicide bomber. It happened a few times to US navy ships it would probably be easier to do to commercial ships.
It generally takes 40+ hours from the time you eat to the time you poo. So, humans always have stuff in their gut. https://www.mayoclinic.org/digestive-system/expert-answers/f...
This is by the same people that made the anime girl face generator https://news.ycombinator.com/item?id=15006552
It maps well enough that getting started is easier with a vim background, but it's different enough that I have a hard time using vim when I ssh into our servers, and I do the whole "ten keystrokes with caps lock on, oh no" except instead of caps lock I have kakoune muscle memory.
Can deposit cash in their account as easily? That was the main hurdle in the parent post.

I might add, in my country you can still deposit cash in any account, but the bank is required to declare cash deposits beyond $1,000 USD in the same month.
I'm not commenting on the validity of the policy, only one whether rent-seeking is the correct term to describe lending one's property out on AirBnb.
Some interesting previous discussion regarding the limitations of Apple's differential privacy can be found here: https://news.ycombinator.com/item?id=15224312
Interesting work. Can you elaborate on how the ticking actually occurs? What is the quantum basis for the effect?
See the end of the blog post:

> All VC1 users can upgrade to Start servers without any price change.

> To upgrade your existing VC1 server, simply do a power off and a power on your server. Your server will start on a Next-Gen Start Hypervisor with increased performances and for the same price as before. You may already be running on a new hypervisor if you created your server recently. New hypervisors are powered by Intel Denverton CPUs instead of Avoton.
If that’s true then it makes me that much more confident in Apple’s privacy practices. I will trust a profit motive to respect privacy much more than a CEO or leadership team that respects (or claims to respect) privacy purely as an ethical principle.
> Got direct feedback from one that I lacked skills in fast growing startups and two feedbacks that I wasn't a fit ...

Hilarious - Are they right?

Consider the source -- frankly, many startup leaders lack the executive seasoning and managerial savvy to make a balanced scorecard assessment of talent. Their hiring criteria often boil down to 'hot or not'.

Get clarity on your targets -- specifically, WHO is the Founder, Co-Founder, Early-Stage manager YOU can most help? That's the person you want to speak with.