skysight-inc/HackerNews huggingface dataset:
Define "synchronized". If you already have a way for nodes to determine something was valid as of a certain set of data and time, you've already solved it.
What do you mean, symmetric wings generate no lift? There are plenty of lift-generating symmetric airfoils out there.

Your link indicates that Einstein fell victim to the equal time fallacy. While the equal time fallacy supposes that lift is generated because air moves faster and generates a pressure differential, air moving faster to generate a pressure differential does not necessarily imply the equal time fallacy.
Trump lied about wealth to feature on Forbes list
As well as "stick as a service" vendors who will make money on both sides of the conflict :-(.
Even me too
Possibly related: when you have difficulty being self-motivated.

When you have a deadline, at which time someone will look over your work, it's similar to having an audience.
wow, that really does hurt to read.
Most any manufacturer has "autopilot" as good or better than Tesla's, they just prefer not killing their customers. What Tesla has is mindshare and marketing.
I think you've assumed the wrong premise. At least for me. It's not the highly customised things, it's the accumulation of the small things that are either missing, inconvenient, slightly annoying or somewhat different to your needs.

Every package developer makes choices about how their package works (and built-in behaviour too), but sometimes that clashes with what you want, or is somehow inadequate.

It's those small conveniences that have a disproportionate impact.

I'm not saying you can't do similar in vim or there aren't other ways to achieve the same goal, I'm saying that over time, those minor improvements have a huge impact.

Here's 2 examples:

1) Splitting a window horizontally by default splits 50:50 but on a 16:9 monitor I usually want the new buffer (right) to be smaller than my current buffer (left). So I override the defaults.

2) I use paredit for lisp based languages, but (as far as I'm aware) there's no built in-command to copy (or paste) the s-expression surrounding the cursor's current position.

I often find myself wanting to do exactly that e.g. in a let or a cond form in Racket. So I wrote a couple of small functions to do just that, bound them to keyboard shortcuts and I've now made a minor extension that fits exactly what I want to do. Since lisp is based on s-expressions it turns out this extension to someone else's package is incredibly versatile and useful.... TO ME!

(let [<CURSOR>(x (some-function with args)]

I press my chosen key-combination and it becomes

(let [(x (some-function with args)]
[<CURSOR>(x (some-function with args)]

ready to edit the new s-expression
of course they did. why is this news?
The story of ispc: C's influence and implementing SPMD on SIMD (part 4)
I don't think I can be as humble as he is at that age.
The article "Rameses II and the tobacco beetle" (PC Buckland, E Panagiotakopulu Antiquity, 2001) has a more probable take. In the century-plus these mummies were in museums, they were subjected to various insecticide treatments. Among these was almost surely nicotine applied as an insecticide. Cocaine may have been introduced similarly or accidentally in this timespan. 19th century and early 20th century museums did not document anything and had by modern standards extremely poor conservation approaches.

[1] http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.490...
Yeah a ton. I posted about it before I saw this:
https://news.ycombinator.com/item?id=16894604
reply

[updated]. Thanks xur.
> I see it less like a "anti-western intelligence/military bias", but rather a anti-Hillary/US government bias.

I can't disagree with that.

Then there are things like the Vault7 leaks, which were stoked by teaser announcements and theatrics. And while they did contain some surveillance tactics that seemed interesting they mostly contained tools and internal communication that was clearly sensitive and generally not information that the public even cared about (their exact code obfuscation algorithms?).

The net effect is that most people didn't care much while anti-western intelligence groups probably had a field day.

And given the sophistication to obtain the data it likely came from a nation state in the first place wishing to accomplish exactly that goal.

There's no way they didn't realize what they were doing. They played part in an attack.

Meanwhile Assange yawns at the Panama papers...
This is the 3rd article I've seen like this today.
I think what's missing from the conversation is bonding vs bridging social capital.

https://en.wikipedia.org/wiki/Social_capital#Sub-types

We have known for a while that close homophobic bonds (bonding) can create animosity towards outsiders. But not every relationship does this. Some relationships connect us with people outside our normal groups (bridging). The extent to which people bond or bridge varies from person to person, and across time periods.

I suspect this conversation is being had in response to Facebook's tendencies to bring out the worst in people. I think the internet has the potential to create both kinds of social capital. It's helped me stay closer to my friends and family, while also introducing me to people in different countries, or people with different religions. When we design social networking software, we should design it with bridging social capital in mind. If it only encourages bonding, we'll be creating a world of hostile tribes.
I think the officers involved should be fired. This is clearly an attempt to justify the killing.

> While Chaney said detectives didn’t think they’d need a warrant because there is no expectation of privacy after death — an opinion several legal experts affirmed — the actions didn’t sit right with Phillip’s family.

I disagree with these legal experts. I hope Facebook and Grindr publish all the private information of these officers and legal "experts" when they die and refuse to take them down because they have a perpetual license anyway.

We have onerous life + xx years of copyright but the dead have no right of privacy?
My friend's wife uses CapsLock instead of Shift for each and all capitalization needs, even the sort of capitalization done in this sentence.
Getting Real Gnome Back in Ubuntu 18.04 [Quick Tip]
Nonsense question.

If you want nonsense answers you could just google it.
A mother paid South Carolina prison gangs thousands to keep her son alive
Nellneo – A Social Poll
I don't think that loading up a debug build with your dev certificates builtin is too much of a hassle for enabling MITM hooks.
Yes and it's not just at work: most of us feel we should fill every hour of our non-working lives with activities. Especially our kids' lives (no wonder people are having fewer kids!)

There are two things wrong about this I think. Firstly, it confuses activity with purpose. Secondly, unscheduled time is valuable not only for itself but for extra capacity when something important pops up.
> I'm not sure we're really disagreeing on anything now

Agreed. :-)

> in a collapsing universe where the entropy the entropy at one end of time is higher than the entropy at the other, can we have long-lived mutually-interacting systems where one is decreasing in Boltzmann entropy as it gets closer to the higher-entropy end, while the other is increasing in Boltzmann entropy as it gets closer to the higher-entropy end?

I don't see why not. The only constraint the second law imposes is that net entropy has to increase; it certainly doesn't forbid one of a pair of interacting systems from decreasing in entropy, as long as the other's entropy increases at least as much.
I prefer to think that this happens when you pick a measure that ignores key aspects of the results. For example, would the results be the same if the mortality rate was complexity-weighted?
I think you linked to the wrong post - this is the correct one: https://news.ycombinator.com/item?id=16894604
Our use case for redis is strictly in-memory cache only, basically what it was originally designed for. It’s used solely with the caveat that it cannot be trusted as a source of truth, that its data may disappear at any time, that the data is local to the node it is running under, etc.

For us, redis takes the place of IPC and “persistence” by not sharing lifetimes with its consumers, ie while redis May go down and our microservices restart all the time, the two have separate lifetimes and redis being around between the two bridges the temporal gap.

Using redis to store structured data is ineffective once you need something even remotely structured, requiring too many commands to perform what should be an atomic operation.
Eventbrite Claims the Right to Film Your Events – And Keep the Copyright
The MPEG machine is ready to start (again)
If you can overwrite the data fields, then it is no longer immutable, is it?
What problems?

Big eaves are dangerous. They make the roof far more likely to get ripped off in a storm.
Why not rim brakes, or disc brakes for that matter? Other than lock up which you can control. And why do you need that over e brakes?
> GPU: Sixth Generation Intel HD Graphics 520.

Every time I see Intel HD Graphics I think weak GPU. Bad for image, Intel.
In vim, when you're in visual selection mode, you can type `ib` (inner block) to select the innermost parenthesized block's interior or `ab` to include the parentheses. If you type these commands multiple times, the selection widens to the next, next, next ... enclosure.

There are other similar commands in the category, like a" for selecting the interior of a double-quoted literal and such.

They are documented under ":help visual-operators".
Personally I think affective empathy is extremely common, but we just construct strategies to avoid experiencing it too much. Most people are going to experience some level of suffering if they directly witness another person suffering. It's just that no one likes that feeling of suffering so we say smth like "that's too bad but there is nothing i can do here" so we can feel better and move on with our lives. This is I guess what we call sympathy, but really I feel it's just a strategy to reduce the impact of the empathy reflex most of us feel. Imagine what your life would be like if you couldn't get over the feeling you get when you witness someone else suffering - you would constantly be suffering yourself and be totally useless to yourself and others. Strong feelings of empathy aren't necessarily a good thing.

Compassion would be what I think is the difficult thing. Whether you fully understand what someone else is going through or not, you have an intention to help them feel better. To actually act in a compassionate way you need to first feel that others are deserving of your compassion and that can be a very tough thing to develop for anyone but those who are the very closest to you.
Now that's a useful article. Unusual for Medium. It even has citations.

Those tricks are used commercially in the "Star Wars Experience" at Disneyland.[1][2] They use a custom-built real-world space which is much smaller than the virtual space the players think they're in.

This isn't going to work in your living room, unless you have a really big living room. But it could work in a classroom-sized room, or a storefront-sized room, or a back yard. You don't need a gymnasium-sized room.

To make this a mass market product, it needs to work without a custom space.
The VR gear needs to be able to detect obstacles in the real world. It needs a depth camera. Not much range is needed, maybe 4m or so, enough to detect anything you could run into, trip over, or fall off. The second generation Kinect would probably work.

Real-world obstacles need to appear in the virtual world when necessary, even if it breaks the illusion. If there's something you could trip over in the back yard, that has to show up in the VR world. Worst case, the system dumps the VR world entirely and just gives the user an unmodified view of the real world.
This isn't augmented reality, which is reality with a little VR added. It's VR with just enough real world added for safety.

The technology used for the Star Wars experience costs about $10,000 per player. That has to come way down without degrading the experience quality.

[1] https://disneyland.disney.go.com/attractions/downtown-disney...
[2] http://www.businessinsider.com/star-wars-secrets-of-the-empi...
You could simply have said "we now agree," I believe.
Wow, this seems like a pretty nice laptop that supports OSS software out of the box.

Keyboard, screen, and form factor seem to be exactly what people want. I wonder how the trackpad is (usually a major problem with non-Apple devices to get "right").

I also wonder what the battery life is like since I didn't see that in the review either.
Unfortunately it's accepted in the industry not to get bilines while you're an internet or a new guy, so I'm sure interns don't have any expectations because of this culture.
And from what I understand these days that's not so much the case except for when running the very latest games on High/Ultra. Or maybe when running >1 4k screens at 60hz or more.
This article was written with an interesting tone; I had a difficult time following it when the author made it seem like he was falling victim for the pop-up scams mentioned.
Thinkpads for sale admin here. I think all of the above markets really worried about this rule, but I've already checked to make sure that Reddit is OK with us and they have stated that they plan on taking no actions with our subreddit at the moment.
Statist garbage...

1) Nobody has not listen to those marketeers
2) The title is garbage too. Children have legal guardians, adults are supposed to think for themselves.
>Isn't this an optimisation that could/should be handled by the compiler (JIT evaluation or something like that)?

Interesting question, which i also asked myself every once in a while, but unfortunately couldn't find a clear answer so far. Maybe someone with deeper understanding of swiftc or aot compilers in general here could clarify?

ps.: To give my reply a meaning. JIT optimization in particular can not happen here, because swift is an ahead of time compiled language, which means the compiler produces machine code which runs directly on your CPU. JIT is a thing for languages which run in a virtual machine (e.g. Java or C#) or an interpreter (e.g. Javascript).
I bought this computer for work just recently. Like he said, I really appreciate how easy it is to open it up and modify it. I'd add that it's very lightweight and small, but has specs just as good as my old MacBook Pro.

Great laptop for travel and customizability.
I end up doing everything like that in emacs keyboard macros.

For your example, this is the kmacro I ended up with:

;; Keyboard Macro Editor. Press C-c C-c to finish; press C-x k RET to cancel.
;; Original keys: 2*M-f M-DEL b C-x C-k TAB C-a 2*C-k 2*C-y C-p

Command: last-kbd-macro
Key: none

Macro:

2*M-f ;; forward-word
M-DEL ;; backward-kill-word
b ;; self-insert-command
C-x C-k TAB ;; kmacro-insert-counter
C-a ;; move-beginning-of-line
2*C-k ;; kill-line
2*C-y ;; yank
C-p ;; previous-line

(after you've created a macro, you can get the above by doing M-x kmacro-edit-macro.)
I understand your perspective, but it's, I believe, short-sighted.

First, it's generally a management failure if there's routinely questions to be answered or information requested that needs to be answered within an hour. Whether that's a planning failure, or a documentation failure, or whatever it may be, that underlying problem should be addressed because...

Knowledge workers benefit greatly from being able to enter a state of deep concentration. When I'm interrupted while I'm working, it's going to take time for me to get back into the state of mind I was in before the interruption. Cal Newport (the author of the post) has written a lot about this with his "Deep Work" material. Yesterday, for example, I was interrupted 3 times while trying to watch a 15 minute video related to a problem I was trying to solve; how well do you think I absorbed that material compared to being able to learn it uninterrupted? When I'm debugging a tricky problem, it's very likely that I have a pile of conscious and subconscious thoughts going on in my head; if I have to switch and answer an email (or have my manager come and ask me a question), all of that context evaporates and I have to start over.

So, yes, from the manager's perspective it seems like a good choice, but it's very likely going to be highly disruptive to the person being asked.
But didn't all auto manufacturers benefit from WW2?

And didn't GM overtake Ford in market share well before WW2 contracts?

If this is just timing, why did GM thrive when Hudson, Packard, Studebaker, and others did not?
Cool build!

My issue with the powered boards is that the motor is both engine and brake - they don't coast when you let off the throttle. With a longboard, coasting is all the fun!

I suppose it would be possible to modify the linkage between motor and wheels to be one way (drive) only? Kind of like a freewheel on a bicycle?
"And I would rather humanely kill the rat than have the rat inhumanely kill a bird."

What? This guy is going to get real upset when he realizes what nature is really like.
A well designed waterwheel could be pretty efficient in these cases, too. Waterwheels tend to lose out when hydraulic head (water drop distance) is too big to construct a practical wheel.

As other people have said, the advantage here seems to be that you get a high rotation speed out of a low hydraulic head. A waterwheel in this case would have lower RPMs, and so require more gearing etc. to be efficient for power production.

In general, turbines are preferred because the moving parts are smaller - rather than having a massive spinning wheel, you just let gravity provide the water pressure, and have a much smaller turbine blade do the spinning.
Linux Journal’s review had specs. 48 Wh battery ‘up to 8 hours’ but this review said 4 while typing.
Purism says that it lasts up to 12 hours with light usage, and I can attest to that. The only times I need make sure to plug in my computer is when I'm using a lot of CPU
He had battery under misc:

"Battery:

The battery is really good for a GNU/Linux laptop. I was used to laptops with two hours maximum while typing and 30min while painting. This one can go almost to four hours while typing and 1h30 while painting. Sometime even more, it depends the backlight settings and your activity with it."
This looks like a really great system. The gpu is a little of a letdown but other than that maybe this is the laptop to replace my MacBook.
The author mentioned that battery life is better than expected for a laptop running GNU/Linux: about 4 hours of normal use or 1:30 if painting.

The trackpad is the biggest question though: it’s Apple’s trademark and no other manufacturer seems to do it even close to as well.
Yeah. Couple every hour for about 5 hours now.
I have to imagine there are differences between a television customer service line and emergency dispatch anyway.
Esoteric Programming Languages Wiki
Thats purely an implementation issue, it's called "Drag". It can be turned off (in theory) for safety reasons though it's probably not ideal to turn it off.
The trackpad is great - best I've used. Getting 5-6 hours of battery life with moderate workload on Unity on Ubuntu 17.10
Well, bacteria are super motivated to evolve (naturally), so our antibiotics are doomed to be ineffective (naturally) sooner or later.
> Maybe that's why hackers tend to not be very xenophobic

Actually, i respectfully question that assertion. In my limited experience, groups of hackers have actually been much more on the homogenous side than random other groups of friends or freely-associating people (recent examples off the top of my head: a recent software developers meetup, or the makeup of the engineering department i work in – spoiler: it's overwhelmingly white, male, able-bodied and middle-class, straight). And IMHO, a lack of diversity certainly signals that something is going on. You might find the term "xenophobia" too strong, but exclusion is real and happens, _especially_, i would argue, among hackers. You needn't actively say something silly like "i don't like women joining my hackathon" for there to be a very palpable jock-nerd atmosphere that will turn off many folks that aren't white/middle-class/male. I think this might be an unpopular opinion here, but i believe it bears pointing out.

A while ago i read a very thought-provoking book entitled "Unlocking the Clubhouse" by Margolis and somebody else whose name eludes me. If you're not already convinced by the unapproachable ivory-tower side of STEM fields, that book may convince you.
I think this is frequently short-sighted. Surgeons are intrinsically motivated to be surgeons and help people, and they are trained to think clinically (pun somewhat intended) about risk-reward. They realize that trying to help high-risk patients will ultimately result in them being able to help fewer patients.
so many! Thought it was just me...very interesting it is happening on a large scale.
... because you essentially are always allowed to install your own custom root certificate when people use the system SSL support, even on iOS? (FWIW, I also feel like the implied solution here is wrong, but your analysis is worse.)
Having witnessed many cases of individuals who help the poor, donate to cancer/heart patients and then turn on a dime and advocate the carpet bombing of rebel held civilian areas, I'm starting to feel empathy is not the issue. The empathy circuits are intact in most human beings. The problem is dehumanization.

Empathy is proportional to how "human" we perceive someone/something to be. We experience the most empathy for close family, friends and individuals we have met in person. As the distance grows the empathy response reduces. It further reduces if the victims are portrayed as uncivilized or savage. It further reduces when the victims are numerous (hundreds of thousands).
Absolutely. The potential power is _water mass/sec * head height * g_ - more water volume is just as valuable as more head height.

Actually, looking at that calculation, I wonder how much the fact that this turbine doesn't introduce cavitation (bubbles) affects the efficiency. The water would be more dense, which would theoretically improve output... no idea if enough to worry about, though.
It's definitely possible. Has someone built exactly that? I don't know; there are hundreds of variants of single-board computers, and I'm only familiar with a few. It's not something that you'd build by buying a couple of parts and soldering them to a breadboard.

As for attaching memory, GPIO probably gives you a transfer rate on the order of a few MB/s. There are various things like SPI-connected SRAM chips, but those don't provide a lot of memory (think KB, not GB).
As an example of some of the weirdness will find on this wiki, here is a metaphor oriented programming language: https://esolangs.org/wiki/Homespring
He's never had a normal job. That's why he doesn't understand these things.
Mortality rate doesn't account for the outcomes of surgeries which are declined due to risk.