skysight-inc/HackerNews huggingface dataset:
"All children should have something like a year of Ju Jitsu, which teaches falling as a daily part of class."

Boom. Beat me to it. I did Karate originally but learned from Judo people to fall properly. I didn't practice it a ton like them but retained some of it. Also, to keep the body relaxed as it reduces injuries. The combo of relaxing and positioning from various martial arts helped when a person operating heavy equipment able to move 1000+ pounds kicked it into drive instead of just pulling it unstuck w/ me. Both of us pushed/pulled in a direction & he accidentally hit accelerator w/ my leg in between a metal wall and the thing coming at it w/ no way to go. I reflexively tilted my leg a safer way, let my body go limp against the wall, and SLAM leg got hit with the machine.

No damage that I can tell. Just a little pain instead of massive amount I expected in knee. My heart was pounding but I felt really good. Got to explain a key benefit of martial arts on top of admitting I was probably lucky as hell, too. :)
> The ex-admin's bosses probably thought they were the important ones, and that this worker was a replacable cog, but they found out the hard way that this was not the case.

Sabotaging servers doesn't mean you're unreplacable any more than a terrorist attack means Western culture is depraved.

I'd believe you if the servers simply started falling apart without this person around, but that wasn't the case.
Comdb2 – Bloomberg's distributed RDBMS under Apache 2
A "proper exit procedure" designed and implemented by who exactly? And what if they go rouge?

This problem is not as simple as you are pretending it is
Reminds me of the Friends' episode where Ross goes on and on with the (bored and weirded out) pizza delivery girl about the smelly chemical added to natural gas in order to make it olfactible & safer to use.

Found it... https://youtu.be/kH5JhYsfNMA?t=1m10s
It's aspirational renovations. Their target audience is those that aspire to the images they're shown.

I admit I'm partially susceptible to this siren's song but in realizing that this is a staged picture of many of a curated ideal then I feel more comfortable with reality.

They got professional lighting!!!

I have to rely on the sun and whatever nonsense the previous owners put into my place which at this point is a fair amount until I get around to changing it.
"low speed collision with a car"

I've heard dodging drive-by's, dealing with carjackers, and defensive driving involving cars. I didn't have any training in being hit by them. ;) I'm curious what the car was doing and your reaction specifically that you think helped. It might be worth thinking on given how people in my area drive.
Mental gymnastics.
> Smoke and toxic gases from fires spread very quickly through tunnels

It's not just the confined-space aspect that causes the fire gases to have such high lethality (although it's certainly extremely significant), it's also the rate of gas production.

Most solids and liquids don't actually burn; they emit flammable gases when exposed to heat, and it's those gases which actually undergo combustion. These gases are created by endothermic processes (pyrolysis and evaporation), and the more heat is available to convert unreactive solid/liquid combustibles into reactive gases, the faster the fire will burn. Therefore, less heat loss (to the outside environment or to non-combustibles) will enable a higher combustion rate and the fire will produce more heat.

Tunnels are quite good at retaining heat, so most of the heat produced by a fire will feed back right into heating combustibles -- enabling devastating heat release rates in the tens to hundreds of megawatts. The heat release rate is roughly proportional to the fire's fuel consumption rate; which will be roughly proportional to the rate of lethal gas (CO/HCN/CO2) production and oxygen depletion.

The radiant heat flux alone can make the fire unapproachable by even appropriately-equipped firefighters -- the massive production of superheated, oxygen depleted, CO/HCN-containing gases can kill -- far beyond the range that the heat flux is deadly.
and who implements the system that generates and disseminates over secure channel?

You are stuck trusting somebody, no matter what. Its turtles all the way down.
Just for other people reading this thread, as I've posted before[1], a word of caution if you're trying to generate sequential UUIDs client-side for SQL server: SQL server does not sort UUIDs in the order you'd expect. The bytes are ordered 10-11-12-13-14-15-8-9-7-6-5-4-3-2-1-0.

[1] https://news.ycombinator.com/item?id=13120522
Eh, I'm inclined to agree with you that the ex admin isn't "right" but the essence of my statement is that he may have been carrying out what was his optimal strategy.

If you treat people bad, they'll treat you bad. If you nuke Russia, Russia will nuke you. It's the Nash Equillibrium where each party is faced with a game and certain situations call for your best move. But your best move should account for what I'll do, and that should be factored into your initial move.

Mutually assured destruction is actually a powerful deterrent. Do we know what the ex-admin's situation was prior to all this? Only then should we pass judgement.
That's utterly awesome. Good for you. What art did you train in, how often, and are your reflexes generally good? I am curious about how much good genetics or how much training are necessary to make something like this the average case.
>Faced with egregious executive behavior, directors should at minimum claw back bonuses. Not to do so sends the message that there is impunity for improper behavior at the top.”

American exceptionalism at its finest, where the more exceptional you are, the more your behavior is excepted. If you really screw up, you may have to be put under house arrest.

The only thing we will not except is stealing from the rich and powerful. Madoff learned that the hard way.
Use cloudability to monitor cloud spend and prediction is pretty easy..
> "Golang" is a search engine hack

Although "Go" is the name of the language, "Golang" can also be a submission title hack so as not to confuse those who "Expected to see an article about the development of modern Go the board game theory".
"He who can destroy a thing, controls a thing."
I'm not sure what that buys you that you can't get by just using an identity column.
The UIAA (climbing standards body) disagrees with you. The specs of climbing ropes are set by them to result in no injury in worst case falls. And plenty of people have taken factor 2 falls with no ill effect.
That is awesome. I hope that the people who worked on this drug make a lot of money. I would rather people who cure cancer become billionaires than people who write selfie-taking apps.
Once again... contact cloudability.
Pretty neat API there. I don't see obvious use cases where I would need this though. Can you share some real life examples? Or simply share why you created this?
That's the smallest thing I've ever seen "too big to fail" applied to.
Ironically, we are much laxer on those with more responsibility. When was the last time a middle manager or senior executive had to pass a piss test to be employed? It's routine in blue collar work.
Another wonderful reason to use UUIDs across systems: Consider what happens when one system's database has an accident, gets restored from a backup, and then starts generating numeric IDs which -- from the perspective of the other systems -- are duplicates.

Best case scenario, things break cleanly and you have to fix up your auto-incrementing counters. Worse is when you start getting data corruption because some remote system has its information about "Customer 11492" (who registered yesterday) overwritten by details for "Customer 11492" who registered today.
Ask HN: Ahrefs, linkedin and a brief, minor freakout
For people who know nothing about web/seo, marketing like me, what is my
relationship to ahrefs and linkedin, and is it anything I should think
about beyond this post?

I discovered a 404 in my web logs, for a document with the name of a
former employer in the filename, GET requested by the ahrefs bot.

When I looked closer, I saw my entire career in 404s, going back to
1975, including employers, industries, skills, etc.

It seems like a combination of my LinkedIn profile, and probably my
listing in the address books of former colleagues who've given their
address books to LinkedIn; one of the employers I found in my logs are
not listed by name in my profile.

What does ahrefs, or LinkedIn or whatever actual client is doing this,
get out of requesting docs that they must know will 404?

And what should I understand about my place in the automatic
surveillance of the internet?

Anyone with better understanding of SEO or whatever this is, care to
comment on what the world knows about me because of this, and what they
do with it?
Top Free Disposable Temporary Email Address Providers
What bank do you use? I've tried several times to get any of my cards switch from signature to pin with nothing but confusion from my banks. "But a pin is only for debit cards" is the typical response.
If you're in the Austin area please let me recommend my friends' startup Quick Residential Rescue[0]

Some great gentlemen who realized that for skilled-tradesman, the real bottle-neck is lead generation. And more importantly, they respect and treat their partners and customers with the utmost of care and regard.

UT picked them up for a major "refreshment" of thousands of units of campus housing and they've completed some stunning work in the short-term-rental market here in Austin with investment properties.

The last time I talked to one of my friends over there, they were focused on the short-term-rental/AirBnB reworks of investment properties as it was lucrative and exploding.

They've only experienced organic growth from what I know which is really remarkable considering their success so far. I'd love to see them meet up with a formidable equity partner and see what they could do at an even larger scale...

[0]https://www.yelp.com/biz/quick-residential-rescue-austin-2
The author is basically complaining that Go (and its standard library) isn't functional.
Like, stupid expensive. Kids, don't ever put yourself in that situation. Call an uber/lyft/whatever.
I'm a little confused about the approach to the frequencies here. Most light that we see (apart from laser light or the result of separating or filtering light with optical equipment) is not pure monochromatic light at a single frequency. This is clearly true for many colors in this chart which are given as combinations of additive primary colors. So, it is misleading to say that these colors have a single frequency or wavelength. Is the frequency given in the chart just the pure color that would be closest to the indicated color in some color space metric?
Maybe what you're saying is true, but that simply isn't the reality we live in. JIRA is a great comparison point as it produces a lot of value for a team. Do you really think your tool provides 10x more value than JIRA for a team? Would you recommend a team buy your system over a quality issue tracker if they don't have one?
Although I don't do it, my friends that do BJJ teach me a lot about it when I'm around them. One thing that's constantly fascinating about it is how most contact sports, including my starting one, are mostly two dimensional centered on good stance on one's feet trying to spot or counter bad situations that aren't. However, BJJ is three dimensional making a person comfortable in about every position imaginable countering falls or other entanglements from all directions.

So, over time, most contact sports couldn't even compare to BJJ on this topic in what situations it could prepare you for. An example that came to my mind exploring this was a car overturned in a lake. Being in a weird position, trying to stay calm, barely moving (big if holding breath), identifying direction/moves necessary, and taking just enough action are all pretty normal in BJJ. Whereas, those of just trained in high-impact, maybe-quick-moving standing sports such as karate/kickboxing or football might find that a much, more, uncomfortable situation. It's one reason I recommend cross-training in standing and ground arts.
Syles – ALONE – Dance
The name VARCHAR is confusing since it's not properly defined what a character is. 1 byte? Something on the unicode table? If it'd be named VARBYTE(255) it would be pretty obvious that a 255-emoji-string insert would fail.

https://eev.ee/blog/2015/09/12/dark-corners-of-unicode/
So, will you comment back, or you just wanted to get some free ad?
http://www.popularmechanics.com/adventure/outdoors/a5045/434...
Go has struct, slice, and map literal syntax.
Although I posted it elsewhere, what's your take on the argument between military and flat-relaxed falling here:

http://www.popularmechanics.com/adventure/outdoors/a5045/434...
Very cool. I've run into a number of these sorts of bugs in my own code - usually the kind of thing where we have multiple people concurrently trying to edit one single data item. My node / javascript framework does some decent caching of data on the front end, but (for example) sometimes the "hey that value has changed and must be expired from the cache" event is received by a client between their initial request for the value and the response containing the value (so the client never expires the cached value it just got, despite it having been expired before it was received).

It's timing and race condition bugs like that which can cause all sorts of crazy problems, and worse: they are often exacerbated by things like production system load. If you're building and connecting to a local (or low-load development) server, you may never even see the behavior of the system under load with higher latency. There's all kinds of ways to simulate this, but more tools for fuzzing this is always better. I'm looking forward to playing with it once it is released.
Big companies are not like government. Government is the law and what everyone adheres to; companies simply aren't. A private company can't force you to do anything you didn't agree to (agreement = contract/interaction), governments force people to do things they can't opt out of. Corporations are bad, but governments are much worse because they can use information they have to force people. If you are thinking that lobbying means corporations are basically government and therefore it's all the same, this isn't true either as lobbying doesn't always happen, and even through lobbying corporations normally lobby for favorable non-restrictive legislation, it doesn't allow them to force people as a government does.
Hi, I'm Regular User Steve. I use Chrome because Google told me it connects faster to the Internet or uses less data or something. Last year someone gave me a virus with Gmail so this time around I got a Mac because the guy at the store told me Macs don't get viruses.

Anyway, can you explain to me why I should use this IPFS browser thing? Can I still check my Gmail with it? Is it faster than Chrome?
> What prevented someone from operating a for profit ride program even before Uber without a medallion?

Uber scaled fast while ignoring local regulations. Both parts are important. We've seen from e.g. Zenefits [1] that state regulators are powerful. Local regulators, on the other hand, are slower moving.

Previously, a disruptor might assemble a few happy customers before the regulators slammed down on them. Uber's ability and willingness to scale fast changed that. By the time the local regulators were ready to slam down, entire cities of constituents wanted and liked the service. That changed the political calculus. Uber, and consumers, won.

[1] https://venturebeat.com/2017/04/11/zenefits-fined-1-2-millio...
Why Sacrifices by the Rich Won't Fix Social Welfare
Taxis are generally allowed to pick up anyone anywhere. Most cities also have a category for car services which are only allowed to pickup pre-booked rides. The licensing for these is generally a lot cheaper and not limited in anyway.

>What prevented someone from operating a for profit ride program even before Uber without a medallion?

Nothing and lots of companies do it.
For what it's worth, revenge doesn't require a net benefit to the situation. The word "revenge" is kind of similar to "retaliation" where an actor is purely seeking retribution for a past event without regard.

To us, it's not justifiable. Hell, the ex-admin may think so too. But that doesn't mean we should automatically side with the employer and subsequently crucify the ex-admin. We don't have any information yet.
Naturally someone has already started that business :-)
I agree with you. The majority of people in this thread have completely internalized that property rights are more valuable than human rights. Only one comment I've seen has acknowledged that all we have is a single webpage with a single accusation, and yet many people leap straight to the conclusion not only that the individual in question exists and is guilty, but that there can be no justification for a person destroying a business. Businesses destroy people all the time. I for one would like to see the tables turned more often.
Because one is enough. It tells about their hiring practices does it not?
Method Binding Is an Implicit Part of Your API Contract
The platinum rule, of course, is don't do unto others as you wouldn't have them do unto you.

Maybe that is too cynical, but it works well as a rule of thumb.
And then stocking the area with extra carrion to sustain all the new vultures? Hmmmm what could go wrong...
Uber generally didn't break taxi laws since most cities only give medallion owners monopoly over unbooked pickups.

Uber generally broke car service laws by not requiring their drivers to have the local registrations.
it isn't that. my dad worked in biochemistry and that's what i'm talking about.

my shitty screwdrivers have the smell you're talking about.
Yea rail storage is pretty niche and definitely can't power the whole world.

The only advantage is that there is a very low switching time on the load from charge to discharge compared to pumped hydro. This could be extra useful for load balancing a distributed grid.
There were a few guys at the bar I used to hang out at that had several DUIs, had the ignition lock, yet somehow seemed to get on the road after closing the bar.
Almost all cities had a category of licensing for car services that were not taxis long before uber showed up.

The only difference between uber and these other car services was the ease at finding a car.
This is so out of base with common economics I don't even know where to begin.

Thus, I suggest you read a microeconomic textbook to get some more context on how government wide economic policies (like UBI) will have on individuals.
Because money. God help my company if I get hit by a bus tomorrow. Until that happens, or they piss me off enough that I go down the road, they are happy to make money off my expertise.
The Kinetics Human Action Video Dataset
good riddance.
A young rocketry startup once offered to an applicant a challenge to show skills with hardware. This kit - https://www.sainsmart.com/sainsmart-balancing-robot-kit-v2.h... - was required to assemble and in general to make working in a week and bring back the results. The kit was given by the company.
Researchers decipher how faces are encoded in the brain
I've often wondered if non-SWP interviews involve homework... I hate this aspect of interviewing for positions.
That's a vertical thing. I've had two financial services employers require a drug test.
How do we even know the story is at all truthful? Maybe someone who still works there did something stupid they couldn't recover from and is now blaming it on "an ex-admin" to make it sound nice.
Pedestrians are walking around moving cars everywhere. Some number of people will be terrorized whenever they notice a car is not moving like they expect.
Netflix: Container Scheduling, Execution and Integration with AWS (2016) [video]
I prefer "The future is already here — it's just not very evenly distributed." And distribution isn't solved by pushing further into the future.

I feel like this is something most tech business founders eventually grasp, but it's not something you can be told.
Thanks for clarifying. I don't use it. I just verified by talking to others that uBlock and Firefox was possible while uBlock in Chrome on Android was not (nor was any other adblocker).
In the past 200 years there's been a tremendous increase in leisure for most people

My anecdotal observations don't align with that statement, most people I know work more than ever. It's almost madness. I would love to see some hard evidence to suggest otherwise.

While technology is supposed to be making things more efficient (and sure it can do that), it's also making certain things more complex, and I'm not sure most humans have the desire to cope with the complexity very well (nor should they). This can create a time consuming quagmire of technical debt, I deal with it daily.

A simple example of this growing complexity in society is food and beverage packaging. It's become too complex for most people to know how recycle things properly, and it's not really something people go out of their way to understand so it rarely gets done correctly, thus creating new problems.
“Nothing is Something” – OO design talk by Sandi Metz (2015)
How does his opinion differ, really? Everything he's done indicates that his desire was to operate as closely as possible to the Trader Joes formula as he could. He has proven he can operate a successful business. At the very least I'd give him a franchise to run.
unreasonable profits should be protected by medallions. if uber does not come up with medallion system that is enforced and protected by elected officials, their rate hike will be a fart in a wind.
I would not consider the explanation I describe to be a thought experiment, but rather a mathematical derivation; although I might showing my roots as a mathematician instead of a physicist there.

Additionally, all the argument, as I presented it, shows is that there is some length beyond which we cannot observe. It turns out that we can calculate this length, and the result happens to be precisely the plank length. As a mathematician, this seems highly unlikely to be a coincidence; however I am not familiar enough with physics to know if this is a deep result, or a trivial consequence of it's definition.

To clarify the disagreement: do you agree that our current theory predicts that there is some length beyond which we cannot measure?
Absolutely wonderful dissection of Null Object pattern and how dependency injection should/shouldn't be used. This is Sandi Metz (of "Practical Object Oriented Design in Ruby" fame) at RailsConf 2015 but it's not Ruby-specific. 35m.
How do you get higher availability than that?
Basically copying Aldi's multiple codes and non-standard stretched UPCs.
I'm not sure how knowing that there are qualified CEO candidates who would accept such a contract leads to a way to exploit it. Can you elaborate?
Sounds like another funding round.
Yeah, it's a seller's market. If you get a DUI and have to drive to get to work, you have to pay it. And the public is (understandably) largely unsympathetic to extraneous costs for drunk drivers.
I'm actually more interested in any latency decreases and improvements to direct CPU/memory access that may be included in the new standard.
One of the best things for R is the mailing list. At leasr when I was learning stats and R rhe knowledge both of how to do stuff in R and what math to use when was phenomenal. If gentle people didnt answer in time Prof Brian Ripley from Oxford would answer early morning British time and explain why your question was wrong and what the math meant and what you really meant to do and why and then 3 lines of R to do it.
Thank you for the detailed steps. Based on your list I purchased "Teach yourself electricity and electronics" which has content similar to the order you have listed. Hopefully ramping up on the basics will enable understanding of circuit diagrams