skysight-inc/HackerNews huggingface dataset:
Why do you consider cheap solar not a breakthrough? If I 30-year mortgaged some solar cells, I could put them on my house right now and save $20 a month on net because of reduced electricity costs
>Is it ethical for me to have a cat, when cats are obligate carnivores that not only have to eat meat but also independently kill billions of birds a year?

Properly-kept housecats stay inside and don't kill any birds. I suspect the vast majority of those bird deaths are caused by feral cats, not pets (though of course, most ferals probably are or descend from pets that were abandoned or escaped). Our society could be doing a better job with dealing with feral animals like this, because they are bad for ecosystems; they're basically invasive predators.

Bird-killing aside, the environmental impact of pets is actually pretty staggering. It's probably worse for dogs too, since they're much larger animals on average.

>The megafauna that existed on planet Earth just 200, 500, and 12,000 years ago were far more numerous than the number of livestock cows today.

Citation needed. Yes, there were millions of buffalo on the American plains 1000+ years ago, but a quick Google search shows there's over 94 million cows in America today. Also, from what I've read, there are more plains now than in the past, because forests were destroyed by humans to make grasslands.
That's a valid way to categorize all memory errors in C.
Show HN: Ponder – The instant text scratchpad in your browser
Ponder is a fast text scratchpad that saves your thoughts in the browser. Instantly switch between it's 10 files by pressing Ctrl and a number key.

A simple app based on my own nostalgia for the ease of use of the AlphaSmart Word Processor.

https://ponder.joeldare.com
> Design for Everyday Things

Do you mean "The Design of Everyday Things" by Don Norman? If so, I agree that it is a great book.
I actually got it in my mail today. $30 plus shipping. Keep an eye on price fluctuations.
How do you scour for EBS snapshots and open browsable S3 buckets?
This is awesome! It looks like he did most of this before going to college, amazing!
Ask HN: Why don't you plant a Giant Sequoia today?
One giant sequoia can store a lifetime of carbon emissions. For $7 at amazon you can order a live tree seedling and plant it today.

The General Sherman removed 1438.892 metric tons of carbon dioxide from the air. Divided by the American yearly CO2 footprint of 16.6 metric tons ,we get 86.7 years of CO2 sequestered in a single tree!

The giant sequoia grows 4 feet (1.2 m) in height or more per year Given excellent conditions the growth rings could approach 2 inch (5.1 cm) doubling the 100-year total to 34 feet (10m) in trunk diameter.

This is an idea to seed a new forest full of giants up to a length 275 feet (86 m) high. A forest that grows across the world and is going to live there for thousands of years. Who wouldn't want to grow up near a forest like the Sequoia National Park in America?

https://dewharvest.com/carbon-dioxide-stored-by-general-sherman-giant-sequoia.html

https://en.m.wikipedia.org/wiki/Sequoiadendron_giganteumI
the rest of my sentence was important too, I don't really appreciate you cutting it off to pretend I said something I didn't.
In Praise of Online Dating
IMHO, this was a carefully crafted PR stunt meant to draw attention to the woman (and her detractors as collateral damage).

What nobody seems to realize is that both sides benefit from these manufactured controversies. Both sides see heightened engagement from "controversy."
Hooray for materialism! -- culture just gets dumber and dumber
IIRC they also allow charging the person - for a "reasonable" amount - for the data retrieval process (which I assume would include the "identity verification" part).

Maybe using the 3-D Secure protocol (especially the second revision) would be enough to unburden yourself for verifying the identity as Mastercard/Visa/American Express supposedly check it for you.

This would work only in some conditions (the data subject should have a card to their name that supports 3-D Secure protocol, and you need to had a complete payment platform to your website/app/whatever) and doesn't solve all the other problems we have (like being sure we are delivering the right information esp. regarding homonyms and so on), but that could be something to investigate.
As far as I can tell, this is functionally just a coating with low emittance in the IR outside a narrow band. A matched PV device that is kept cool can, in principle, approach the Carnot efficiency for the temperature difference between the emitter and the PV junction. If the emitter is the sun, then the source temperature is very high and the Carnot efficiency isn’t a major limit. If the source is a solar panel, I’m having a hard time seeing how this is useful.

I can see this being somewhat useful as a no-moving-parts heat engine for something like a solar concentrator, but there’s another relevant thermodynamic limit: even if this magic material has emissivity 1, it won’t radiate at a greater power per unit area than the blackbody spectrum predicts. At non-crazy temperatures, this is not very high, which will limit output for small things like solar concentrator targets.

So I can see this being useful to convert waste industrial heat, or maybe as a bottoming engine for a combined cycle plant, but I am having trouble understanding how it could be useful for solar.
Panels are ~30 cents per watt, wholesale. But that's for the larger panels generating 250+ watts that are commonly used for solar farms and distributed generation. 50 and 100 watt panels are manufactured in much smaller quantities and will cost more.
The book Ghettoside by Jill Leovy goes into that in quite a bit of detail. Her conclusion - yes, very much, with a strong overlap between community and extended family. An excellent book.
Americans really, really, really love their guns.
> You're - literally - on "Hacker News" complaining about the lack of a product. You were given one that you could easily fix to suit your aforementioned needs/demands and was a principal complaint against BankId but, instead, you want BankId to write the Linux app for you because... ...profits? This makes no sense; especially, when you would already have a hefty baseline of code to work with.

That's like saying jailbreaking makes iOS respect the consumer. It's a temporary hack that makes it tolerable to use... for a few days until the next mandatory update comes out and breaks everything again.

You won't get lasting improvement without changing the mindset of the powers that be.

> Does not automatically doesn't - implicitly - mean that it's disallowed. You seem to be confusing the two concepts, here.

You're saying service developers can put in the work to support both desktop and mobile BankID. I'm saying most of them are lazy and don't bother. Those two statements are not incompatible.

> We're - literally - talking about the API being the same because you made it a point that it was different. Either it matters or it doesn't. Pick one.

Similar and compatible are very different things.

Then again, this whole subdiscussion is irrelevant anyway, because desktop BankID is still crap for the same reasons as Mobile BankID.

> O.k.? We're still in the swamplands of those are problems created by the app developers and not BankId, correct..? I'm not sure I'm following how the app designers' decisions are the fault of BankId...

If BankID had spent more than two seconds designing their API boundaries then the app developers wouldn't have had to care about supporting both in the first place.
You must be amazing to speak with at parties.
Pale Blue: Lithium Polymer USB Rechargeable Smart Batteries by Pale Blue
The article mentioned that there are 4 current Amazon employee who came for the interview, considering (assuming they're software developer) their salary, I would say the price tag is probably justified. (Whether it's worth it or not is another story)
We envision a future where you sit down in a kiosk, swipe your card, and a robot performs a fast, clean, consistent, and most importantly, _SAFE_ haircut on you.

How long are you expecting the research phase to take?

I mean, honestly, trying avoid either snark or boosterism, this seems like a challenge akin to getting to level 5 self-driving cars but with a payoff a good deal less. I am both honestly interested in efforts to do things like this but also very much in awe at the hurdles such problems present.

We don't have humanoid robots that easily occupy the same space with a human, in the fashion that humans interact with each other daily without one human swinging their elbow into the face of another. Solving that problem is a big deal (it holds back things like medical transport robots). Shaving a person seems a more intense version of this problem - the problem isn't the raw dexterity of the robot but it's ability adjust to and even anticipate a person's micro bodily adjustments (oh, also adjust to the unique physical properties of a given person hair, properties that can even by the part of the body - I have curly patches in places, etc).

Despite my general pessimism here, I'd be interested in what tool you imagine could get there.

Edit: And one could solve this problem also with something akin to auto-adjusting helmet, so you essentially extend the logic of the plastic guards that keep clippers a fixed distance from the head - the problem here is you'd wind-up building an extremely complex machine without much guarantee of giving a good haircut (the simple motions of a barber conceal an awareness of what their object is and it isn't hair all the same length - an average person use guarder clippers to get that and literally not pretty).
They have no use at scale yet. Expect prices to drop exponentially once a use at scale is found.
1. The article states that the older machines had swap enabled, so they weren't homogenous anyway;

2. At some point you do have to change configuration, and if you have insufficient memory on one you either have insufficient memory on all machines, or a badly distributed workload.
I doubt it would work similar, since generating heat is always a byproduct.
I hate this. I haven't had an interview that did this in a while. Once I got my confidence up enough to do so, I started ending interviews with this kind of esoteric puzzle play.

Let's have an actual conversation about what I think about a relevant real-world process or problem. Then we're both engaged in learning something. This should not be a setting for exacting a candidate to recite a study of algorithms or discrete structures--go back to campus if we're going to be that pedantic.
Reading this has reminded me of something I wanted to explore in the past. Most of my applications/requirements for a Pi include GSM, but I've found GSM modules to be very expensive, often being more expensive than the Pi itself.

The author mentions a mobile USB modem, and it's just dawned on me that older 3G/HSDPA dongles are often very cheap. Does anyone have experience using them, especially what power implications they bring?

They do bring a bit of bulkiness on the Pi, and are easy to steal, but then if one can access the modem, the whole Pi might be at risk too.
The exceptions to this are strippers and prostitutes.
Something like a Lisp yeah. I think sub-Turing is interesting for verification/configuration/whatever, but I have a soft spot for small languages with powerful base concepts.
This has been discussed in several previous threads on HN. From what I’ve been able to gather, creative ways to reduce the energy consumption of A/C will require a change to building designs, and/or increase the cost and complexity of new buildings. Whereas the cost of running the A/C is up to the future tenant(s).

This is why you see some companies applying eco friendly tech to some new buildings (Apple) but not in general commercial development.

Again this is just what I’ve surmised from reading threads like this. YMMV
Pro Git – Free Git Book
Narcissism. https://en.wikipedia.org/wiki/Narcissism

See also psychopathy and sociopathy.
Alternatively, crimes are more common in metropolitan areas due to increased contact.

Crimes are also more likely to be reported in poor metropolitan areas. Poor minorities are more like to stay in metropolitan areas. Resulting in a rather insidious bias that's hard to adjust for.

http://www.hngn.com/articles/75816/20150309/dea-was-told-not...

PS: It is also easier to hide a body in the country, so missing persons can hide many murders.
Hmm. Interesting move with all the antitrust sentiment floating around. Google has certainly focused their "everything above the fold is us" approach heavily on travel. Don't believe me? Do a few travel related queries and see how much above the fold IS NOT google. They have been VERY aggressive in this area.
Not for me. Southern U.S.
There have been similar reports about the UK grid for as long as I can remember (multiple decades).

The squeaky wheels get the grease.

As for the UK today, certainly anywhere along the South Coast was untroubled by this (including the RJ Mitchell windtunnel[0], which was quite literally a blast).

[0] https://www.southampton.ac.uk/windtunnels/index.page
Reports say White House has drafted an order for FCC to monitor social media
... yet mysteriously, the trains are often this bad
Maybe I'm misunderstanding your target customer. Are you only focused on enterprise?

The pricing comes across as something like "forced obsolescence." Forced handicapping? You might not have meant it that way but many of the features in the professional plan are useful for companies of any size. Like Google apps integration is a standard feature. I could see on-prem SSO (I think Oracle does things like this?) but my company deosn't get automatic calendar invites??

In agreement w/ the comment you're replying to, I wouldn't try this because the base features aren't useful enough and the pricing feels very customer-unfriendly.
Your mistake was in using the same title and presenting this as a fresh Show HN. Three months is not long, especially when the original thread got major attention, as yours did. People routinely try to milk this cow too frequently, and users really don't like it.

If you read the Show HN guidelines you'll notice that they say: "New features and upgrades ("Foo 1.3.1 is out") generally aren't substantive enough to be Show HNs. A major overhaul is probably ok." If there really has been a major overhaul, you should explain in detail what is new, and link to the previous discussion.

https://news.ycombinator.com/showhn.html

HN's FAQ also says that once a story has had significant attention, we mark reposts as dupes after about a year.

https://news.ycombinator.com/newsfaq.html
>Rape culture

Rape culture was the inversion of choice.
Quite literaly as in- a hunter/warrior who is near suicidal and risk taking, that he might not be around tomorrow, forces upon all potential mates the choice of now or never.

A road some potential mates took (and still take today, though it it is no longer tolerated), to keep the high risk-high reward nature of group outliers going.

Now rape, was the ultimate gesture in this context- do it and the individual will become either forced to integrate and settle into society (as still seen today in many "honor"-cultures) or will be austracized, and forced into the "explorer/scout" role for his group. A state out of which only the discovery of large opportunity or death could liberate the culprit.

I do not see this in modern culture.
Surely there are still reckless one-night stands with percieved high risk takers (Band Groupies come to mind).
But there is no risky endavour and "outside" to which a lone-wulf could be condemned (the equivalent today would be to shoot him/her one way into space).

The by you described harem effect around the rich and powerfull has near nothing to do with rape culture. These people are not really risc-searching, as in engaging en mass in activitys that are potentially lethal.

A more detailed explenation of your statement would be nice.
For any situation, the statement "I want X" neatly partitions people in two.

Group 1 treats it as a normative statement about the world: "I want X" means they should have X, and arrangements of the world in which they don't have X are ones in which the world has morally wronged them. This injustice means they're owed redress, which makes it morally and socially acceptable to do whatever necessary to take from the world what it wrongly denied them. Anything they do is justified; they're just reclaiming what's already theirs.

Group 2 treats "I want X" as a positive (non-normative) statement about themselves, like "I had toast for breakfast." It may inform their plans and decisions but doesn't justify behavior that's normally unjustified.

Everyone is in (1) some of the time, many are in (1) most of the time, and some are in (1) all the time.

You can see this every day in common, totally mundane scenarios. I guess including the home and the boardroom.
This is essentially the same principle behind current night vision tech.
This is really interesting. I love the idea.

> The researchers found they were able to measure three types of blood pressure with 95 to 96 per cent accuracy.

First question, what is the third type of blood pressure? I just know the two numbers, systolic and diastolic.

Second, what it the accuracy of current devices? (Which also have gone automated, and seem pretty nifty) It seems like being 5% off could push someone over the newly lowered border of worrying blood pressure at systolic > 120.
A surprisingly decent article. Well-sourced, sources named, sane viewpoints given and explained in context, history of the issue brought in.

I believe that this executive order is being written in bad faith. That is, the purpose is not to protect free speech, but rather to boost holders of certain ideological positions. But how do they write such an executive order without making those who enforce it suffer from cognitive dissonance? Some people get boosted, others get punished or downgraded, all on inconsistent or unstated criteria. This will have unexpected side effects. I'm not sure how I'd respond to such a regime if I was an on-line media company like Youtube or Twitter. They might end up just restricting every body to only the most bland and conformist expressions. They might adopt the Chinese government's "One eye open, one eye shut" style, and occasionally and unpredictably punish some random offender, just to cow everyone else into bland and conformist expression only. Nobody would actually know where the line between "allowed" and "punished" expression, so most people would stay well inside the safe zone. If holders of certain ideologies are allowed to express ideas further from bland and conformist, it won't go down easily. Maybe twitter can police people from saying politely that XXXist's are allowed to post more extreme opinions than YYYist's are and that's not fair, but what's to keep everyone from making that observation on Instagram, or heaven help us, TikTok? Word will get around, and maybe torches and pitchforks will be gathered. Or maybe Twitter will just wind up its business and quit.
>what you try to accomplish is a repeated topic of discussion in my barber shop and for the moment they seem happy not to see this kind of tech working.

Of course, just like truck drivers don't want to see self-driving trucks. That doesn't mean it's a bad idea at all, just that people don't want their job automated away. As someone who hates barbershops, I'll take a robotic barber any day.

>Where I live people go the barber shop to feel somebody is taking care of them and have a nice chat in addition to having a nice haircut.

If that's what they want, then they can keep going to the barbershop for that experience, and keep it in business. No one's going to force them to use the robot.

>but I think you can compete with this if Buzz Robotics brings a kind of human touch

The whole point of something like this is to eliminate the human touch! It's to make getting a haircut a quick, inexpensive, and automated experience, just like buying a drink from a vending machine instead of going to a shop and having it hand-made for you while you sit and chat with someone. It's entirely possible to make coffee with an automatic machine, but Starbucks doesn't seem to be hurting.
The universal truth, in that case, is described by relativity. Different reference frames don't imply that the laws of physics differ between frames - in fact it's a fundamental axiom of special relativity that the laws of physics and speed of light are invariant (remain the same in all reference frames[0].)

[0]https://en.wikipedia.org/wiki/Special_relativity
> Who on Earth is thinking that it is a good idea to take an EBS snapshot and make it public?

Non-marketplace AMIs are built on public EBS snapshots, but that's something they should still fix. Marketplace AMIs already handle private snapshots
> A hardened Android device (disclaimer, I’m making one for retail sale)

Any more information on this? I'm more than a little depressed by the current options in phones - I don't relish the idea of moving to ios - but at the same time I'm a bit worried about the direction Android is taking...

What kind of marked/price range are you aiming for?
What we need is for this administration to get involved. /s
I'm glad we can use Europe for an experimental staging area!
From a performance point-of-view, it's not the same at all. Also this is a design system, not just a set of utility functions. You can also abstract common components and reuse them.
For EBS, step 1 is reading the docs, step 2 is cutpasting a documentation example.

For S3 I'm not sure how people are building their lists. AFAIK the API provides no enumeration. So this is possibly something coming from web crawl data (e.g. common crawl)
I'm happy it's locked down. I don't want crappy apps accessing my emails
I can see the n-gate.com entry now:

Alan Kay recommends some books. The Hacker News spend most of the thread recommending books they like, instead.

Anyway, this is a nice list filled with works I've not read, so I'll make certain to give them some attention next time I'm at a book store and ask them to order some things, since they only carry magazines and other drivel in-store.
5000 classified patents per year in the US alone. No one else publishes a number.

Modest estimate would be 200 000 over the last 30-40 years.

Some of it must relate to energy.
> Bought some flights on Scandinavian Air through Google Flights that included multiple checked bags for my wife and I about a year ago. Upon arrival at the airport in Gothenburg, they were very insistent we hadn't paid for bags and had to pay the exorbitant fees for checking bags on the spot.

Something like this had happened to me often enough that I no longer purchase anything through an intermediary when traveling. Flights, directly through the airline. Hotels, directly through the hotel. Theme park, directly through the park. Is it convenient to make reservations and/or pay in person on-site? On-site it is.

The occasional discounts just aren't worth the clusterfsck it becomes when there's any kind of misunderstanding or miscommunication.
Interestingly on a quick glance the UK does not seem to be part of the synchronized EU grid and has only a DC connection to France that provides 5% or less of the electricity used at any time.
I may be wrong but the grid does not seem to be directly affected by the clusterfuck that Brexit will be.
Okay, how about you give me $1000 and I'll pay you back when I die. I'm good for it, I promise.

If so, I'll give you my bitcoin address.

The time value of money is so fundamental, and so obvious, that you must be being deliberately obtuse to not understand it. Money today is worth more than money tomorrow.