skysight-inc/HackerNews huggingface dataset:
This raises a question in my mind...

Current hydroelectric systems rely on building a dam, say 50m high, and generating electricity from a large mass of water falling that 50m.

Might another approach be to build a tower as high as possible, say 500m, and catch rain up there. You might catch less rain, but you'd have a lot more height.

Obviously the challenge with this is getting a large catchment area very high up. I guess you'd need some kind of aerodynamic design like a kite to allow a massive square meter-age to stay aloft during storms.
Why did RSS feeds die?
Isn't this how Reddit works?
I'm sort of divided on this. It's a better safer approach. But all of our movements and who we spend time with are already being tracked and have been for decades so why the pretence? Why are we reinventing this wheel, just have the NSA open their files.
I get the sentiment and yes perhaps a personal application for this has some value to the individual. I do think however the risk of segmentation around this is real, if we all use different apps/platforms is there any value to it? For years I have and still do avoid a lot of cloud services, chat apps etc to ensure my privacy; but when it comes to this I strongly suggest we put our concerns aside and get behind whichever app/platform is recommended by our respective governments.
If only Alpha Protocol was a bit more polished, it is such underrated gem of a game.

But its dialogue system is absolutely great, and it really feels that your every action has consequences(both positive and negative).
This one

jamie=# ((select a from nums) union (select a from nums)) order by b;
ERROR: column "b" does not exist

This seems to point to a missunderstanding of how sql works. It's not a table query language, but a set query language. Tables are just a way to store sets while thay are not in use.

(select a from nums)

This part creates a new set from the "a" column of nums. The column name is carried over as convinience but the nums table is not visable from the union.
is there dump files on Draco Submarine Ships and Aliens if there is my email is alphamindedprofessor@gmail.com anything else you can throw in i do not know about please send them to my email thanks alot....

sincerly
Thomas A Hodges
Do startups really cost as much as we act like they do? I mean, yeah, if you've got 10, or 30 or however many engineers, it's gonna be expensive, but there are a lot of projects that can be bootstrapped and really don't take many people. Instagram can be built by a single person working nights. You probably aren't going to get a unicorn out of that, and you'll obviously have to scale up, but it's cheaper than it has ever been. Tech is almost free these days.

The disconnect between how cheap/easy new tech is these days and how few interesting experiments we've seen in the last decade, especially in the web space, suggests that it's something other than the money. We're just not really building things because VCs and startup mantras have convinced us we need a million dollars to do anything and it's just not he case.

Do bootstrappers have an advantage in an environment like this? They've always had to tighten their belts, so they should have some advantage relative to these bigger ventures that have bills/investments to pay for.

To respond more directly to you, your conjecture should be pretty easy to test, look at metrics like the stock market plotted against when successful companies are founded. The data are there.

To provide an example, I'm bootstrapping. I haven't made more than 40k a year last decade, got student loans, about to get out of school, don't have a job, got limited funds to fall back on. This economic crunch isn't any worse for me than the past 10 years, so if the idea is it can't be done, thus far I'm doing it. Odds are I won't succeed, but it's doable. If I was making 100k and had connections, it may be easier, but I also wouldn't have the time available. Cheap machines, free OSes, and a decade of HN and other free resources don't cost much. Everyone's sitting at home, anyway. Not much better to do, not much to lose.
Some of the biggest wins looking back are companies that got started during either the dotcom bust in 2000 or the recession in 2008-2009. So what he's saying is contrary to history.

Though it's true you have to really love the idea you're working on. I've seen people with what they thought were clever ideas for which they had no real passion fail again and again.

IMHO the people who have it the hardest are those trying to find product market fit in this environment as it has to be absolutely brutal.
I know of h2g2 - https://www.h2g2.com/ .

Wikipedia ('natch) has a list at https://en.wikipedia.org/wiki/List_of_online_encyclopedias .
Ampyx Power: Wind energy systems using tethered wings above 200 meters
Think about it. "Wasting" food is identical to overproduction of food. That's slack in the system that prevents people from starving.
Troy Hunt has an active Twitter feed talking about just this https://twitter.com/troyhunt
This is roughly High School level physics (basic, not AP or any honors or anything).

In this particular case, there's the knowledge of the first basic law of thermodynamics (You can't win, the limiting case on energy conversion) and Kinematics, typically taught as the first half/third of physics. (Broadly: Mechanics/Kinematics, E/M, Optics and Waves)
We used EJS in our basic programming courses in my CS program and it was a great book. Loved the exersices you could try directly in the book!

I now program JS for a living so i guess the book also really worked. Thank you for the third edition!
“Why are these elderly peasants not dying?”

Classy.
Stars are still sparse enough in both galaxies that most stars still wont have much effect on most other stars' planetary systems. On the scales of the galaxies a star system isn't much bigger than that system's star. A star affecting another's planetary system would pass so close it and the host star would likely form a gravitational relationship and would be considered a "collision". Space is stupid big and stupid empty.
Americans go through 24M chickens a day, but a significant portion isn't eaten. Think of all the food thrown away at restaurants because it sat too long, food that goes bad in the fridge (oops! guilty), food that kids get served but don't eat (as a parent, I see this a lot).

While it is disturbing to hear this, I'm sure this amount of chicken meat is wasted on a daily, or at least close to it.
This is education, the centrepiece of The Labour Party's 1997 manifesto:

Cut class sizes to 30 or under for 5, 6 and 7 year-olds
Nursery places for all four year-olds
Attack low standards in schools
Access to computer technology
Lifelong learning through a new University for Industry
More spending on education as the cost of unemployment falls

Can you demonstrate where the opposition had those policies?
> If the specs are fluid, all design confidence flies out the window and the resulting system is over-engineered to cover eventualities.

IMO that achieves the worst of both worlds. If the specs are fluid you have to be able to iterate quickly, dive in, modify code and deploy. Any time code gets over-engineered to elegantly handle future changes it just slows down those changes. You need to accept or even embrace that the requirements will change, not to try and preempt the changes.

For 90% of the corporate web apps I've seen a simple CGI site would have been the correct solution, able to change quickly with no layers upon layers of dependencies.
His points in "What I don’t like about Hackathons" are frankly why I like hackathons (time constraint, a lot of people in same mindset, a lot of socializing)

I really miss the yahoo openhack.
Powerless and irrelevant? Some keywords:

US nukes Pakistan Afghanistan India Taliban politics cold war history army
Aaaaaaaand ofc there is nothing about the tools thst are in the main runtime built around distributed systems.

Their explanation on tracing show they have never played with an erlang system.

As someone that build distributed systems everyday, i would really like all of our industry to play more with production erlang systems. That would answer a lot of these explorations instead of badly reinventing the wheel over and over again.
The context was ARM64 based platforms. macOS isn't on an ARM64 based platforms (yet?).
art direction for DXHR was superb.

Everything just clicked, perfectly. I just wish it had a few more months of development time - as you can clearly see that Upper Hengsha and Montreal were supposed to be another city-hubs.

EDIT:

I forgot to mention, but the idea that technology inclined areas have golden hue, while those further away have green-tint was great.
My impression as a german:

Government access to private data: revealing location & contacts. I think privacy might be the wrong description, I think it's more about surveillance of the people by the state, which is not acceptable for a huge percentage of people I know. Privacy is most of the time the better wording, but I think surveillance is the better fitting term for this occasion.

Just compare it to the DDR (German democratic republic, the communist state). Is it similar to the surveillance by DDRs Stasi, which tried to track every move and every word of dissidents?

As an additional point: You can't force people to use the app (as far as i know). I don't think this is in any way compatible with basic human rights as formulated by the Grundgesetz (which I support, we are a democracy where the power comes from the people and not an authoritarian regime). They have to opt-in themselves. You have to make the app attractive so that people want to opt-in.
I think this discussion is putting the cart before the horse. If there is no alternative to this app, what protections should it have? That's the second question to ask. The first one, which hardly anyone is asking, is whether the thing is necessary to start with.

There is one very strong reason to suspect Australians don't need this: the app has only been here 3 days, but the novel coronavirus has been around for 3 months, and it has never looked like getting out of control. Turns out that telephones and old-school contact tracing still work, and they work even better with some help from DNA manipulating virus detection robots. Who would have thunk it?

Plus, at this point, each app user has a 1 in a million chance of being exposed to the virus. Talk about number needed to treat!

Australia should focus on prisons, aged care facilities and concentration camps, where the risks are still meaningful. And we should rack our brains to imagine other ways that the virus could rapidly spread beyond our capacity to contain it. If things keep going right, we won't need this app. If something goes wrong, it will be an unexpected thing that the app can't fix.
People confuse our pricing page with OSS, Tyk Open Source is batteries-included, so you get 100% of the functionality free of charge. We charge only for the stuff that companies like: GUIs, RBAC, SSO etc. This is all delivered by a closed source product, and to get pricing for that, we want to talk to you.

We don’t hide the ball
We invest heavily in ensuring you can do everything you need to do in OSS version
We ensure that there’s always an OSS way of doing things with Tyk, we don’t strong arm you into buying

We do need to feed ourselves, so for the proprietary stuff, we need to be competitive, that’s just how the market works.
> Has someone that thought they were taking LSD ever turned into a permanent schizophrenic zombie or in a mental institution, or is it all urban legend. If someone that didn't know they were predisposed to mental illness, is it applicable to dismiss their experience in order to maintain how safe LSD is?

My good friend took "something" once (hard to tell what the dealer is selling you) and ended up in a mental institution, and is now in fact officially mentally disabled and on drugs for life. The drugs keep him stable enough that he's able to work, although he's still just a shadow of his former self.
The word terrorist can have either a literal meaning (who intentionally uses violence for their goals) or a politically charged meaning (who does that illegitimately, with some---varying---definition of "illegitimately"). The former is very clear, while everyone will have different opinions on the latter (hey, I think the opposing state is still not compensating genocide's victims). I wouldn't mind labelling An Jung-Geun as the former for that reason, just make sure that the label is clearly documented.
Hello. My CS experience is quite elementary, and I'm a decent enough Web Dev and Scientific Programmer. If I wanted to be the type of hacker capable of taking down a Satellite, what would be everything that I would need to learn? I assume that this is super complex (Duh) but am curious as to the actual extent of knowledge required to pull this off.
Why did RSS readers die? Was it social media?
The upload war for the territory of Kosovo is not a lame one, it is still a highly heated dialogue amongst politicians of both countries. While this topic had consequences during the 1999 war between Kosovo and Serbia, is still present today for which US is actively involved in this dialogue for that particular map this wouldn't classify as lame.
Do you have any specific examples of those companies (2000, 2008-2009)?
> We evolved feelings, morals, the concept of cruelty in order to care about human life. You can choose to care about whatever you want of course, but careful with your priorities.

I would not be so sure about feelings and morals. Cruelty yes, has evolved a lot.

> And yes, chickens aren't human and are quite tasty.

Those grown naturally, yes. Those grown in a plant not so.
One can argue that these dams are already catching rainfall indirectly, from a very large area with very high efficiency.
Yeah, Dietary Calories are actually Kilocalories in engineering terms, so it's a pretty energy dense material.
I was going to sign up for premium, I don't think I'll bother if it does work.
It's not so much "magic" as it is the sheer rate of molecular collisions in the cytosol. There are so many collisions happening that at least one of them will do what you want. Here's a back-of-the-napkin example, admittedly with many simplifications:

A tRNA molecule at body temperature travels at roughly 10 m/s. Assuming a point-sized tRNA and stationary ribosome of radius 125 * 10^-10 m, the ray casted by the moving tRNA will collide with the ribosome when their centers are within 125 * 10^-10 m of each other. The path of the tRNA sweeps a "collidable" circle of the radius of 125 * 10^-10 m, for a cross-sectional area of 5 * 10^-16 m^2. Multiplied by the tRNA velocity, the tRNA sweeps a volume of 5 * 10^-15 m^3 per second. Constrained inside an ordinary animal cell of volume 10^-15 m^3, the tRNA would have swept the entire volume of the cell five times over in a single second. Obviously the collision path would have significant self-overlap, but at this rate it's quite likely for the two to collide at least once any given second.

Now, consider that this analysis was only for a single ribosome/tRNA pair. A single ribosome will experience this collision rate multiplied by the total number of tRNA in the cell, on the order of thousands to millions. If a ribosome is bombarded by tens of thousands of tRNA in a single second, it's very likely one of those tRNA will (1) be charged with an amino acid, (2) be the correct tRNA for the current 3-nucleotide sequence, and (3) collide specifically with the binding site on the ribosome in the correct orientation. In actuality, a ribosome synthesizes a protein at a rate of ~10 amino acid residues per second.

Any given molecule in the cell will experience millions to billions of collisions per second. The fact that molecules move so fast relative to their size is what allows these reactions to happen on reasonable timescales.
That's of course true, but I think it's a pretty big part of the context that "the object" is a galaxy, i.e. a collection of approximately 1 trillion (1,000,000,000,000) stars.

It's more or less obvious that such an object cannot be very close, and thus it's apparent size in our sky really does convey something about its size.

That was my interpretation, at least.
ProjectSend
Conversations, Android XMPP client, gains support for A/V calls
How the Chinese Authorities and the WHO Handled the Coronavirus
Kind of annoying timing, to be honest…
First Things First: Feature Prioritization Frameworks
I'll preface by saying that vvvv looks impressive and certainly seems like one of the more polished options in this space. We have a type of visual programming as part of an internal configuration tool, and I will definitely look into vvvv for how things can be done differently.

That said, this screenshot from one of your tutorial videos highlights the type of thing I think people are worried about: https://i.xkqr.org/screenshot_2020-04-27T09:47:46.png

I'm not saying it's bad – it might just be a question of habit whether or not graph edges are better than named identifiers in text, but it is hard to build away, even with best in class tooling.
It is a bit weird. As a Brit I would say that the first "home" has changed from a noun to a sort of adjective. It has the same type of meaning as fr example "busy" or "asleep". We quite often say "Sally is home" and it has a similar logic to "Sally is busy" or "Sally is asleep".
Street-Fighting Mathematics [1]

[1] https://ocw.mit.edu/courses/mathematics/18-098-street-fighti...
I am a software engineer. At least, that is what my job title says. However, I would also find coding CRUD apps boring as hell. What I really am is a problem solver. Currently, I solve problems using code. I think the trick is to get into a company that has problems that interest you. Personally, I work with hardware and embedded systems.

As for understanding new tools and techniques, I'm never able to do it unless I have a real problem that I'm working on that requires it. Toy problems and coding exercises won't work because the problem is contrived and isn't a real problem that needs fixing. Math, especially, is a wonderful tool, but I'm not interested in it for its own sake. This doesn't mean you are stupid.

So, figure out what you want to be doing and figure out who's doing it. If you are young enough to return to schooling, you are probably young enough to get an entry level position if your skills are a bit weak in the required area.
Which are the top three mist significant RL papers?
I can actually remember what's installed on my system and how it's configured in a centralised place, even when I don't touch the configuration for a few months. It's actually better for "boring" systems that I don't touch the config of much - "why is that set up like that" is a question I can easily answer. Additionally, when I do want to play with new stuff, the various tools I'm given usually let me do that and go back to a clean slate if I'm not interested, without having to deal with heavyweight containers/VMs/etc.
My family and I are on day number 1153 of eating beans every day (and no animal products)
I think it's to fit on the podium because actually everyone is saying "Stay at home".
Is chicon the new chocolatine?
> In British "quite good" is similar to "particularly good"

If you're very posh then yes, but everyone else now uses the American sense. If you asked me what I thought of a TV show, "quite good" means I enjoyed it but I'm not that fussed if I don't happen to watch any more of it.
"but people are simply being reasonable."

The Swedes have taken this line as well, saying they 'trust' their citizens.

I think it's not very rational, and also borderline chauvinist for people to say this.

First - what evidence does anyone have that Swiss/Swedes or anyone for that matter are consistently behaving in one way or another that is more 'responsible' or 'sensible' than others?

I don't see any evidence.

A nationalist self-image of responsibility doesn't count as Science, and neither does a few images of fools on a Florida beach as it's all rather anecdotal.

The other issue is that policy is material, not just 'responsibility' - for example - we know from Wuhan that restaurants and other places are a vector for transmission. So it doesn't matter if certain groups are 'behaving responsibly' so much - if they are going to restaurants, hotels, tanning salons etc. - even that otherwise 'responsible behaviour' inside the scope of 'following the rules' that is actually causing transmission.

Given all of the variables we have to look at, the last place I think we can infer variation is with regards to who is 'being reasonable' by some arbitrary definition.

That said - it would be really good to look at different nations varying policies and see how it works.

It could be that <5 people is 'enough' to keep the R1 below 1, though there are obviously other factors. Maybe the Swiss have found the 'sweet spot'?

In Canada, the problem was stopped, but there's already a continued second wave in long-term care homes, it's possible those are structured differently in Canada than other countries.
I found myself in the same boat recently, and looking for jobs/roles which is half business, half tech. I looked into "Solutions Engineer", but a bit afraid I loose my ability to code.

What did you pursue? Any tips?
Any good stuff to read on topic you can recommend?
> Quite means something different. In British "quite good" is similar to "particularly good"

Not really, it means something more like 'fairly' or 'reasonably' good.
Chicken Scheme: Elevator Pitch
I'm surprised your comment is being downvoted. There was an article shared on HN last year and suggesting plants are more aware than what we typically give credit to them. I also don't think its completely out there to assume humanity won't be modifying how the human body consumes energy.
Daily Hot Girls Twerking
I've been writing blog for almost 15 years. I think blog died because readers can not support blogs in some way. Many readers became silent subscribers and that's it. The RSS is only a publishing protocol. It's a good format to subscribe some notification, updates and such, but it's no match for the two-way relationship of modern social network.

1. The user can not directly comment with an RSS nor contact the author in some way

2. Author can not gain profit from RSS. Nor the reader app, distributor and publishers. There needs to be a payment option in RSS style.

Twitter and Facebook are exactly opposite of this, it's built upon layers of layers of connections and there is no way to enumerate the whole graph. It gets tired pretty fast and became an echo chamber. Contents tend to get shorter to grab attention with fragmented information everywhere.

And in the era of mobile phones, making content on a small screen is painful. But making viral videos are not. I think someday if videos are just easily indexable and searchable as texts, Tiktok can become the blogging platform of next generation.
Aside from an interactive map being overkill, are you sure you weren't complicating things here too? It seems like you were expecting some sort of system integration, but the customer wanted to just email an excel spreadsheet when there were updates, if they'd even thought of that.
I feel bad about plugging myself into a post to Peter Seibel's work, but if you're interested in this kind of git preservation, I wrote a script to move a subfolder between two repos:

https://github.com/jakub-g/git-move-folder-between-repos-kee...

(I didn't use it for a while, but it worked for my case a few times in the past).
List of Open-Source RL Algorithms