skysight-inc/HackerNews huggingface dataset:
In published tests, cleaning ability is not correlated at all to power over a certain level. Most 2000W cleaners are older models, since research and development has focused on energy efficiency for the past decade, so they are even likely to be worse. I could easily construct a 10 kW model for you, and it's going to run very hot.

(There was this EU introduced power cap for domestic vacuum cleaners the other year, accompanied with articles how you should hurry up and buy one of the powerful ones before they were forbidden. I was in the market for one, and scoured every independent test I could find where I understood the language, and the result were the same: the modern ones using less power picked up small particles better. As soon as you have a powerful enough engine other things start to matter. That's when I sighed deeply about journalistic integrity and bought one of the newer models.)

You describe an important problem. Consumers keep buying older models, which are objectively worse, because they want a scalar value for "betterness". It's just like megapixels, where you stuff a 20 megapixel sensor behind a plastic lens and consumers buy it because big numbers are good.
Across Europe there are strict standards for building efficiency. This is not just about insufficient infrastructure, it's to keep energy waste in check. People want as cheap a house as possible (which I understand, it's hugely expensive and most people have to make serious sacrifices) and when having to choose between not terribly energy-inefficient and full-height bedrooms, they'll often choose the latter. Which is unsustainable in the aggregate. Hence, tight regulations on energy efficiency.
I found this a bit confusing as well at first, but it's really simple enough: The point of the article isn't the scripting language itself. It's that the author encountered a bug in the scripting language implementation that would have been found much earlier if the compiler had warned about the argument that is de facto unused.

This is a general point: More warnings can help find more bugs earlier - but you do have to worry about false positives, and warnings that increase compile time can also be a net negative.

The author's example is probably simple and efficient enough to add to a compiler, assuming that it performs some basic recursion analysis already.
That font is unreadable dude.
I propose a mechanism of free market being the wrong model of reality. ;-)

Some people are simply greedy and they will pay less at the expense of having less capable employees. These people will "poison the well", so to speak, for other market participants who actually wouldn't actually mind to pay higher wages. And as was eloquently put by Keynes - "Markets can remain irrational longer than you can remain solvent". In short, asymmetric information is the key problem of free markets.
Modern windows can be made very energy efficient. In fact, it's possible to design an almost all-glass energy-neutral house in much of Western Europe.
Children with learning and behavioral disorders are a minority, yes, but they cause the most damage in a group, hindering the natural progression of others so the teacher has to know how to deal with these children. Now, that was just one that I gave you, but even ordinary children often have behavioral issues that stem from their upbringing at home and the teacher has to be able to address that.

Our high school biology ends with relatively detailed information about DNA replication and sequencing using PCR that combines chemistry and physics. Physics includes nuclear physics and electrical engineering. Mathematics contains differential equations and statistics. Chemistry has topics going in to details of organic chemistry. Was Plato talking about those too?

If you feel that there's some problem in education that you can solve better, feel free to get a degree and write a thesis about that.
Between the 1940s and 1960s the US had 90%+ marginal tax rate for the highest income bracket, so it's not an impossible or untenable situation.
different compressions being talked about here.
This is a good point. Further recommended listening, "Neil Young on Why High-Resolution Music Matters" ~ https://www.youtube.com/watch?v=5oTtylYR76o (55min, 2015JAN17)
Puzzle: squirrel's first attempt with the pull-rods on different sides
But what psychology currently tells us is that spaced repetition and recall is necessary to consolidate information into long term memory. Interacting with younger people who force you to reexplain and repeat things you were previously taught is a great way to do this.

Education without this is like building a sandcastle. The brain is going to discard the information after the test if you aren't required to reexplain it the next year, and your foundations get eroded.
Faraday wants you to believe it's not a front for the Apple Car, but probably is
It's unlikely that the design and layout of a house will remain up-to-date over 50+ years. People's expectations change, see for example the role of a kitchen in a house. 50 years ago, the kitchen was were the wife cooked. Now kitchens are open, connected to the other living spaces, and very much the central point in the house. Re-doing the plumbing is one thing, dealing with that sort of changes is another.
Interesting that it's a sterol, considering that corticosteroids CAUSE cataracts. Not to mention destroying retinas by inducing central serous retinopathy. We're talking allergy nasal sprays like Nasonex, eye drops like Tobradex, and shots like Prednisone.

Don't use corticosteroids unless it's a dire situation (pretty much never).
Url changed from http://phys.org/news/2015-11-automatically-d-video.html, which points to this.
That's not the case at all.

The core of Racket, its syntax and basic constructs, is basically the small and elegant Scheme we all known and love. What set Racket apart is all of the additional features that was built around that tiny core (its own OO system, for example), as well as a huge standard library.
Imagine the icon would change to a skull, or some kind of symbolic cross, without changing the functionality at all. Do you think people would use it as before? The heart icon implies a certain emotion, and many people feel that emotion to be stronger than what they feel towards the tweet.
Yes they do, if you pay for it. I know several brick factories that will make you those 'high-quality' ones. But they don't stock them (instead they make them custom if you want them) because the demand is so low due to the 100% price difference with other bricks that, realistically, serve they purpose just as well.
You might want to read a less harried account on the history of Scheme than this.

Wikipedia names continuations, tail recursion in the standard, hygienic macros and a shared namespace for variables and procedures as defining differences between Common Lisp and Scheme.
Your edit touches on this but a SNP panel, much less an exom or God help you a genome is hardly anonymous
Brasilia, the capital of Brazil (mentioned in the article) was built by disciples of Le Corbusier. It is a horrible place, a totalitarian technocracy modeled as a city, a place that forgot that humans exist. But it is also a very interesting failed experiment.
You are confusing two different types of compression.

https://en.wikipedia.org/wiki/Data_compression

https://en.wikipedia.org/wiki/Dynamic_range_compression
And read this, too: http://www.ams.org/notices/201011/rtx101101454p.pdf
Back in 1999, an acquaintance of mine bought a $2.3MM home in an exclusive neighborhood. As he was driving me and a few friends through his neighborhood, he explained that all the houses could be knocked down and rebuilt if desired. The price included location, security (theater really, but hey, it sells), footage, looks and fancy appliances. Not quality.
I would recommend the book Small Giants by Bo Burlingham where the stories of 1 person companies to few hundred people companies are told and these companies have been around for many many years. They did not attempt to be not unicorns and are content
How can you possibly be impatient to achieve big things when you don't understand what you want to do and what HN posts are about?

You need to understand that you won't achieve big things. You're not Zuckerberg and you're not Steve Jobs. You're not going to be a billionaire, or even a millionaire. It's pretty evident from the things that you wrote above.

Now that we've gotten that out of the way, you can accomplish great things once you gained the maturity to realize that you need to work hard and study hard and learn. Figure out what you enjoy, and work hard at it. You might not be the next Steve Jobs (no one is), but you can make a very good living in tech if you work hard and keep learning throughout your career.
Back then, you could only buy expensive high quality ones. Only a few people could afford it. Nowadays, you can buy cheap crappy ones, as well as expensive high quality ones. What's the argument here? If someone will let me spend the equivalent amount of what these old houses cost back then on a new brick building, I will have them build just as good as the old ones. Actually, I'll have them build better, because the woodworking of the windows will be much better, the moisture barriers will be better, the insulation will be better, the quality of the mortar will be better, the concrete slab will be better (actually, 'it will have a concrete slab'), the roof tiles will be of better quality, the heating system will not suck, I can go on and on...
Agreed. We support gensim (a Python machine learning library) entirely through commercial projects and consulting. We never asked users for money, while keeping the lib 100% open source.

BUT you have to realize a lot of OS development is subsidized. This takes the form of "free" work by students, undergrads, graduates, government grants etc. A lot of the suggestions people throw around are simply not feasible for hobby OS projects, which don't have access to free students or free government money. It's a race to the bottom if you want to state this as a business problem.

It also confounds the moral issue somewhat, as corporations (and individuals) then rightly feel they are entitled to development & support -- after all, the subsidies have come through their taxes!
Feels like nitpicket but: volume of air is in itself not a problem. There's not a whole lot of energy in air. The issue with heating/cooling is the surface area.

With active heating/cooling, what really helps is better insulation. In Scandinavia and Germany people are insulating walls in new houses with 40 cm rockwool, or the equivalents thereof.
There are almost no 100 year old brick buildings in San Francisco. Why? Because there was a big goddamn earthquake in 1906, and unreinforced masonry (which is to say, functionally almost all of it) deals badly with earthquakes in general. It deals especially badly with them when they are built on landfill.

There are also lots of mentions of survivorship bias, which is extremely relevant here.

Now that said, I find modern construction to be badly done in general, because it is almost all of it erected as cheaply as possible—and as cheaply as possible as measured by the shortest possible term metric. There is good stuff done still, and it is arguably cheaper over the ten year run or longer, but that's not what people buy and so it's not what the developers make. I'd like to claim this is shortsightedness but I can't shake the feeling that it's because real wages have been stagnant or sometimes declining since around 1972. There just isn't the money to spend.

N.B.: there are a lot of reasons why modern lumber seems like so much crap. About 95% of it is because folks are unwilling to pay for good lumber, as described above. Quality lumber, even quality construction lumber exists, but it's significantly more expensive than #2 common. Of the remainder, it's worth remembering that modern 2x4s are tend to be farmed in sustainable fashion using fast growth species like Douglas fir or Southern yellow pine. The stuff we were building with in the 30s and 40s? Quite a lot of that came from old growth forests, now irrevocably gone.
Hi toyg.

You clearly haven't tried raising money for an Open Source project. It's really really difficult and the amounts of money you get range a lot. Usually you also want to underpromise and overdeliver, so it's about raising 10-20k USD to deliver a project that will take three to six months of full time work to deliver, ADDITIONALLY to fixing bugs, maintaining infrastructure and doing things for which you can't possible raise money at any rate. Contact me privately I can share more of the details, but it sounds like you're quite detached from the open source reality.

PS. We work on PyPy and cffi
Comparing yourself to your peers is the key for personal growth. It's often not easy, in particular in days of Facebook and other social networks but here why I think it's crucial for us:

At the end of the day we are imitating our peers--everyday. When we start as babies we imitate our mother, our siblings and everybody we see. Later in school and university we see what friends and other peers do. Sometimes we think good idea I might try it.

And sometimes we are surprised that in our eyes to us inferior peers try and accomplish stuff which is more challenging, advanced and just more exciting than our life. THIS is the key for personal growth: this feeling that somebody who was inferior all the past overtook us, frustrates us and will lead us into bigger journeys. Especially men who tend to be more competitive cannot stand this feeling and gear up.

I started to raise money because of some 10 year younger guys I met who raised 500k seed with ease. And I found those guys are inferior to me, so I was forced to get on par.

But when I was an office drone deep in corporations I imitated my peers there: worked as little as possible but still climbing the career ladder via office politics, complaining all day how bad the company is, worked just for the weekends (full of partying and girls) and the only goal was planning the next vacation. This was a hollow life where I lacked strong peers and I was slowly degenerating like them for years. I lost time.

This is the good thing about Facebook. Because we have 1,000 of FB friends the probability that we see everyday some big achievement of someone is quite high (and so frustrating) and leads to a very restrictive posting behavior on our side because it tells us: only post if you achieved something special and this initially negative energy might be good: it pushes into new and more challenging activities.

I know not everybody will like my answer but again peers who push us out of our comfort zone help our personal development. So we should see it as something positive.
Yes, that's how long term memory works in the brain. Explaining things and social learning are excellent learning techniques, I'm not denying that. These days smart phones and social media are an excellent tool for communicating ideas with your peers. But it has to happen with peers that are on the same level as you are. Otherwise you are explaining too simple things that you've already mastered.

This "discarding after test" is already and automatically addressed in the education: high school repeats things learned in previous schools and builds on those. Our high schools also have large final exams that require one to be able to understand the whole curriculum of the subject. The grade measures your memory, and understanding because you cannot just memorise everything. The same is true for all education levels.
It came with a:

"Printing robot – fit over the keyboard of a standard IBM Selectric typewriter and generated typed output at 12 characters per second."

Interesting solution.
I kinda like this, but wish there was a download err something... Props to the creator!
The github sourcecode is not open-source, but they've open-sourced a lot of other code in which they seem to be using Ruby's `SecureRandom::uuid()` function in the same kind of context for generating what they term 'opaque ids'.
Relax. It's no longer your San Francisco anyways
Artemis signs deal with Nokia to test pCell networking
Yup. When Hurricane Andrew blew through South Florida in 1992, homes in the direct path that were built prior to modern building standards survived, while more modern homes (I think post-1980) were unlivable (or totally gone, depending on the area).

Part of that was declining building standards (go too long between hurricanes and yes, people get complacent).

But another aspect, I think, is a shift in home ownership---we no longer "own" a home for an extended period of time (average length of owning a home in the US is seven years). Yes, my grandparents eventually paid off their mortgages, but nowadays I think that's pretty rare. Why buy quality when you aren't going to own for very long?
Racket is far closer to Scheme, from which it derives, than it is to Common Lisp -- which is why, before it was called "Racket" it was PLT Scheme. (And, in fact, the Racket tools include support for both r5rs and r6rs Scheme -- but not Common Lisp -- as well as the Racket language itself.)
Mostly I'm amused that Americans never got the end of the Three Little Pigs story and still build houses out of wood.

I read once that buildings are the best thing to cheat on the construction of because each layer of underspecced materials is hidden by the next layer.
Url changed from http://www.popularmechanics.com/science/energy/a18009/inside..., which points to this.
Could it be because Firebase provides HNs API, and Firebase is going through a technical transition as part of Google? I.e. Something broke and someone hasn't noticed or the right person can't be contacted to get it fixed.
“WASP and UNESCO to 3D print what was destroyed by ISIS
> It _only_ works if you take (by force) from one guy and give it to the other guy.

That's how taxation and government funding works.

Are you advocating no taxation, and no government?
Url changed from http://www.sciencedaily.com/releases/2015/11/151106132923.ht..., which points to this.
thanks @Leo, point noted. So the DRC effects the audio amplitude? A lot of the sounds I listen too are recorded in analog tape based studios, the DRC are used in digital studios and post processing?
thx @mborch
With oil prices so low due to Saudis Arabia's production rate, it'll be quite a while before Canadian tar sands are economically viable again.
The mistake you are making is assuming that synchronous group activities are a necessary and important part of teaching.

There will always be deviations from the mean, regardless of whether or not they are pathologized as behavioral disorders, which will slow down such attempts at synchronous learning.

This is why sense classical times the ultimate model for education has been that of the individual conversation, dialogue, between student and tutor.

We aren't using alternative methods outside of tutorship for education because we have discovered better methodologies, we are doing so because of economics and cost.

Expert tutors were formerly extremely scarce and retained by the nobility. We employ group lectures in packed classrooms not because they are a necessary or efficient way to learn, but because educated teachers used to be extremely scarce, and it gave everybody a chance to hear.
The C++ Variant Saga: A happy ending?
Racket was called PLT Scheme until 2010, and remains essentially a Scheme dialect. It diverged in part because of their disagreement with the minimalist direction of a large part of the Scheme community: PLT developers were heavily involved in the R6RS version of Scheme, which expanded the language's standard library considerably, but which much of the Scheme community rejected. Racket in part is the continuation of the R6RS "batteries included" philosophy, but removed from the politics of the Scheme revision process. (Another reason for the change was the emphasis on becoming a platform for language implementation that supports multiple languages, some increasingly divergent from Scheme, like Typed Racket.)
Dropbox clone app
RadioLab has also produced a podcast on changing the nature/behaviour. The third story is about the soviet experiments on red fox domestication:
http://www.radiolab.org/story/update-new-normal/
http://www.fastbrickrobotics.net
I don't have any specific questions, but I'd love to see his response to the article! I'm pretty sure that Martin would add it to the bottom of the original if desired.
Some places are starting to use ARM Thumb which is both reasonably sane and actually usable!
Radiolab on NPR had a great episode (New Normal) where one of three bits (New Nice) was about Dmitri Belyaev and these foxes. They also present the interesting idea that humans might have domesticated ourselves.

http://www.radiolab.org/story/91696-new-nice/
Okay, so at 30 frames per second, 500 seconds of animation, so... less than 10 minutes?
Japan does that quite a bit with their 'Senpai' culture (formal title of a colleague/coworker that has more years than you). It's not necessarily in mixed classes, this sort of thing is also possible through various side activities (clubs and school run mostly).

Just as an example, here is how school runs are organized in Japan: You usually do not see parents involved. Instead a senpai in the neighbourhood is assigned to each group of young children to lead them to school, starting at age 6. At each street corner there is an adult watching, often seniors. All this is organized through some sort of neighborhood councils. Works beautifully, gives parents more time and older children a sense of responsibility.
Compare yourself with your own self, but several years younger. Have you achieved something notable? Did you just now noticed that you did something wrong before? Then you're all right - you're growing.
Did I want to be a dad? That was the question
I'm well aware of the concept and have been doing this for years in my company's web apps. My sarcasm comes from seeing this covered as a revolution in software engineering as opposed to the application of some rather old concepts with new UI and broader application.
> Too bad it's finance. Is there anyone in a non-parasitic industry

Oh grow up
Whatever I'm advocating, youre advocating flat out mugging, and to conceal that, youre giving it other names.

Muging, aka forcible redistribution of other peoples wealth is called "communism", so stop pretending youre advocating something completely different by rebranding it over and over and over again.

UBI _doesnt work_ without forcibly taking from one group of people and giving it to another group. How forcible redistribution ends up you saw in Soviet Russia. Are you earning so little that you'd rather see our economy crumble like Soviet Russia, than to have hard working people keeping their wages to themselves without being mugged by envious low-earners?
Use Selz. Do everything Gumroad does/did but also plugs in stuff like Mailchimp, Aweber, Campain Monitor etc etc. Don't know anything about SendOul.
Oh great news on the strong mode. One of my biggest issues with Dart is it not being actually statically typed.

Could you potentially generate smaller js libraries if the language was statically typed?
How is that different from removing child care service taxes?

The only difference I can see if that you have to wait till tax day to get your money back.
I don't think it's suitably addressed in current education structures.

Under the principal of spaced repetition, you might also want people in the workforce infrequently tutoring college students, graduate students infrequently tutoring high school students, college students infrequently tutoring middle schoolers, so on and so forth.

The teacher-student heirarchy was decent way to mass produce educational services during industrialization but creates unnecessarily rigid classifications between learners at different levels of knowledge.

I think there is room for a more mutualistic exchange, between tutors who would like to clarify their existing knowledge, and between students who like to learn something new, to emerge in the future.
Nvidia Cuda docker image