skysight-inc/HackerNews huggingface dataset:
There isn’t a shortage of fuels — there’s a shortage of generation capacity.

Or an excess of demand, there are plenty of ways to build houses that lower the need for air conditioning.
Saying these modifications are standard does not talk about their complexity.

Here's [0] a paper where they analyze the mistake of the feasibility check that experts in the field failed to do properly. Here's [1] a paper aggregating all the timing problems that arise and their algorithmic complexity. Some of the timing problems, including the constraint of limiting the time of the passenger in the bus had O(n^2) or O(n^3) feasibility checks. That's slow. Especially slow if combined with integer linear programming or branch and cut algorithms.

If your system instead minimizes the riding time by adding a cost function to a constraint, making it soft, in most cases the cost function is so ill defined that the solution no longer does what you want, can hardly minimize all the constraint to a normal solution, and you get a huge mess.

There's no state of the art solution that models these constraints as soft ones.

These problems being standard does not mean that they are simple.

0: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.927...

1: https://w1.cirrelt.ca/~vidalt/papers/Timing-Problems-Final.p...
There isn't an easy balance. Blacks and Hispanics are disproportionately represented as crime victims because they live around other blacks or Hispanics. How can the police protect them without the focusing on the most likely perpetrators? If they were to treat everyone equally, it would make things worse for the victims. The beneficiaries of that change would be richer white people who would get more policing in their already safer neighborhoods, as well as black criminals who could evade justice more easily.
It's synthetic, so there's little reason to transport it cross border or long distance.
Every time I go hiking/camping away from civilization I take an emergency satellite beacon with me even though I am optimistic about coming home without issue.
Avast acquired AVG back in 2016. So yes, all that data ends up in the same company.
Machine Embroidery Digitizers
Why is critical info so often missing from important articles like this one?

Where do I find out if my MacBook has been recalled? Is there a tool somewhere for me to check or is it based just on a combination of year and model?
I'd expect most are.
What I like is how readable they are, even in low light.
"For him it was the Great White Hope for an industry suffering through its first real downturn ever and struggling to understand just what had gone wrong."

How does "Great White Hope" fit here? That phrase, especially when capitalized as a proper name, has a particular meaning. https://www.npr.org/templates/story/story.php?storyId=128245...
Jesus. Will anybody release a public model??
> What misterdoubt was saying, I think, is that nobody in the field actually actually cares that it is Y Journal of X, what they care about is who is publishing in it.

No, you did not understood the problem. They do care a lot about if it's journal X or journal Y. They care because their job depends on it because the journals that count are regulated into a whitelist and sometimes even into a legal bill, which is outside of their power to change or influence, and they do care because getting your paper into a exclusive paper is a mark of prestige that signals whether your work is worth publishing along with other meaningful work. It's disingenuous and even clueless to assert otherwise. This blind and baseless assertion that journals don't count ignores fundamental and very basic aspects of working in research, particularly how important it is to have your work accepted into the right publication or venue. Otherwise arxiv and blogs would suffice, don't you agree?
You do realize that all this bunker construction, prepper consultation and long-term foodstuffs is keeping a lot of people gainfully employed. You basically want to put them out of business.
I understand we put aluminum recycling plants near rivers (like the Columbia) where energy costs is cheap.
T.S. Eliot's "Four Quartets"

Time, memory, history, mysticism; these poems are everything.
The OP-linked page points to a source URL at the bottom (An MIT 'Environmentally Benign Manufacturing' bibliography).

http://web.mit.edu/ebm/www/publications.htm

After that URL it points back to a Low-Tech page called 'The monster footprint of digital technology'

https://www.lowtechmagazine.com/2009/06/embodied-energy-of-d...

For a summary graphic, see figure 2 in this cited PDF (Gutowski et.al)

http://web.mit.edu/ebm/www/Publications/energy_required.pdf
Leading with influence – How a software engineer learned to lead
That was his point, was saying that it's not a simile and that this is actually the case.
If you haven't, you can look at MVP [1] and [2].

In MVP, by rotating (or twisting) the MVC triad, one can produce an "Observer" based framework that is easy to use and more flexible.

Some googling and you may find more literature on the same including comparisons with MVVP.

[1] http://www.object-arts.com/downloads/papers/TwistingTheTriad...

[2] http://carfield.com.hk/document/software+design/MVP.pdf
What do you think about Apple Homepods?
Good question. Yack started out as a native macOS app for Reddit. As I was working on it, I realized most communities are the same, but provide different and somewhat clunky (especially on desktop) experience.

This lead me into building an open source plugin architecture which allows anyone to bring their favorite communities to Yack.

Plugin architecture, with the help of some really talented engineers helped me quickly build plugins for my favorite communities (Reddit, YouTube, Indie Hackers and Hacker News).

As to answer your question, same argument can be made against Apple's Mail app (which has been a big inspiration for designing Yack). People have multiple email accounts, imagine they all had different UI and you had to have multiple tabs open at all times, switching back and forth, each with different UI/UX. That would suck. Even with a single email address, lots of people, including myself use Apple Mail instead of Gmail's website.

I'm a member of multiple Slack teams, it would suck if each looked different and provided different experience and I'd have to use a web browser to talk to my coworkers. Do you think Slack would take off if it was just a website and didn't provide a desktop experience?

Yack! combines multiple communities into a single, unified desktop experience and takes full advantage of the desktop platform, including native OS level notifications, keyboard shortcuts, and many more.
No you are right, its going to be super easy, barely an inconvenience! I give you that link tax is misleading its more like a snippet tax, right?
Lot of blind spots (straight stips), are they covered in next satellite revolutions?
These users are no longer his clients.
Less like a VW bus, and more like a 1920's Lincoln (the 1980's is relatively ancient when it comes to personal computing), and not only do you have the community of vintage enthusiasts to help you restore it and get it in running condition, there's some company selling aftermarket entertainment systems, and they offer kits for the modern Accord and Camry, as well as 1920 Lincolns...

So yes, kind of quirky and bizarre.
bc isn't a RPN calculator. dc isn't a very good one ;)
They can measure it by altitude. An orbiting object always has a defined velocity at any point of its orbit. For example, a circular orbit 500km above Earth's surface amounts to velocity of 7.61 km/s everywhere on it.
I understand what a savings glut is.

The point is, we wouldn't know if we had one because that the interest rates are a number being chosen by a small committee. We might not have a savings glut, we might have a natural rate of interest at 10% that is being suppressed by central banks.

There is a minor pension crisis in the United States and their infrastructure is not in great shape. That doesn't make it look like there is a savings glut. There is a lot that needs to be done.
The size of the country means extreme events should be more common and more extreme than in a European country even if it's no worse. Europe as a whole has its own problems, just of a different nature - like ongoing terrorism and sexual assaults. They also don't have such a big underclass of poor and hopeless people in geographically concentrated areas like America has.
The articles may not deliver but the Hacker News threads usually do: https://news.ycombinator.com/item?id=20692762
This is both high-level and low-level at the same time; I'm not sure juniors would grok it all, so perhaps this is more of a reference for SEs?
More than just that. That need to learn to actually respect people as people and learn a little humility. There’s too much “I’ve got a gun and that means I’m right and you do what I say no matter what” style thinking among police in America. Teach cops to back down if they have the slightest degree of uncertainty, and honestly, fire and permanently bar major offenders from legal professions for life.
The speed of shadow can be faster than light though.

https://physics.stackexchange.com/questions/335537/can-a-sha...
I'm not disputing, just seeing: this in the page from your previous comment:

Intel® 8th/9th Generation Core i9/Core i7/Corei5/Corei3/Pentium®/Celeron® series Processor, Intel® Xeon® E-2100 Processor, Intel® Xeon® E-2200 Processor.
Single Socket LGA-1151 (Socket H4) supported, CPU TDP support Up to 95W TDP
They have started that. That's why more and more of Android has been moved to Google Play Services.

Coincidentally, that's one of the reasons why being denied use of Android is such an obstacle for Huawei, even though it's "open source".
What's the difference between synthetic and manufactured?
The original article is also interesting: https://www.lowtechmagazine.com/2009/06/embodied-energy-of-d...

"The 180 watt laptop

While these reports are in themselves reason for concern, they hugely underestimate the energy use of electronic equipment. To start with, electricity consumption does not equal energy consumption. In the US, utility stations have an average efficiency of about 35 percent. If a laptop is said to consume 60 watt-hours of electricity, it consumes almost three times as much energy (around 180 watt-hour, or 648 kilojoules).

So, let's start by multiplying all figures by 3 and we get a more realistic image of the energy consumption of our electronic equipment. Another thing that is too easily forgotten, is the energy use of the infrastructure that supports many technologies; most notably the mobile phone network and the internet (which consists of server farms, routers, switches, optical equipment and the like)."
Isn't this like rolling shutter ? But I don't see any stretching of the maps.
Not true. Chromium talks a lot to Googles servers.

Additionally, "websites" that are made for chrome drive even more people into this monoculture which is bad for the web.
Marketing: "With EarthDEM, we will take this transformative new capability to where most of us live, to cities and coastlines, that will directly impact their lives."

Tech: We need these maps for our cruise missiles.
The "source" is just a list of almost 200 publications, with no indication of which numbers come from where. So it's effectively unsourced. That means it's either bullshit, terrible reporting, or both, and there's no reason to believe this over i-have-an-agenda.org.

I've got karma to burn, so bring it. But it really is time that reporters get their bloody act together. Without the research this is as worthless as an opinion piece, and it's not going to convince anybody who needs convincing.
Today his electric bill was $9, but has he saved money overall? It reads like you're saying you're glad you didn't sign up for the service, but you also paid a ton for power today - just amortized over the average $/kWh your power company charges you.

The difference is that you don't have the option to reduce your consumption today to save money.

If large numbers of the population were signed up to a market rate service, it would go a long way towards preventing these spikes, and will probably be necessary as we shift to a higher renewable share making the pricing far less stable.
Your alternative theory doesn't make sense: being presented with options like negative interest rates ought to nudge people further towards current consumption (a positive time preference) rather than the opposite.
Yeah, trying to find technical manuals of any sort on the web is now a pretty futile process. It's pretty disappointing as the web used to be the optimal place to find this stuff.
Comparable: http://www.epa.vic.gov.au/agc/resources/img/research/r_emmis...
I can barely hear those announcements, just sounds like a muffled mess.
I agree but solar would only partially address the Texas problem. Texas is so humid right now that it doesn't cool down at night, so people have to run air conditioners all night long.
If you keep posting ideological flamebait to HN we will ban you. We've asked you this several times already.

Would you mind reviewing https://news.ycombinator.com/newsguidelines.html and following the rules when posting here? Note that they include: "Eschew flamebait. Don't introduce flamewar topics unless you have something genuinely new to say. Avoid unrelated controversies and generic tangents."
The orbital velocity and the ground track velocity only differ by about 6.6% for their 450km orbit, so it's not a big difference. But because they have a relatively circular orbit, you can use the formula sqrt(G*M/R) which gives 7.639km/sec -- so it looks like they are referring to true orbital velocity.
That page does not include any of the numbers in the Low Tech Magazine table. It lists 165 academic and 14 popular publications.

The other paper posted by femto shows aluminum at ~16 kWh/kg. The slightly higher value is due to an earlier date cutoff around 2009. See figure 4(b):

http://web.mit.edu/ebm/www/Publications/energy_required.pdf
Why are people assuming racism? There isn't actually any evidence for that in this case, is there? He was pulled over for speeding just like anyone else would be, and was slow to stop which would have made the cops extra suspicious no matter his race. He was also a man which means a higher chance of being a criminal - could it actually be sexism you're mistaking for racism?
Yes! It's exactly what I was thinking about. But uploading them as normal books would make them difficult to find, at least we need an index. If someone is going to do it systematically, contacting LibGen is surely a possible way to go.
25 points and zero comments. Voting ring?
Maybe 14 kWh/kg is just the electricity used in the refining process.

Maybe to get the 63 kWh/kg figure, you add to the 14 kWh/kg figure the energy needed to collect the cans (if recycled) and to mine the aluminum (if not) and the energy needed to build the refining or recyling plant and the energy used by the workers who mine, collect and operate the refining and recycling plants, including the energy used to feed, clothe, educate, entertain, transport, etc, the workers.

In other words, maybe one figure attempts to estimate the second- and third-order energy use, i.e., the "total carbon footprint", and the other does not.
Over time it might be more practical for EV manufacturers to take back decommissioned vehicles and install the battery packs in centralized facilities for grid storage and stabilization. That would avoid the need for expensive and complex grid connection equipment in individual EVs. Even if the reused batteries are down to 60% capacity, stacking a bunch of them could deliver enough power for demand spikes.
Samsung phones with graphene battery tech would charge in 12 minutes
Edit: "post-Jobs" should be "between Jobs."

Post-Jobs it's doing fine.
My friends switched for Ultima and especially Wing Commander.
It is supposed to cover many of the same use cases as a car.

Also, "car" has many meanings already: passenger car, train (or subway or roller coaster) car, and elevator car. It doesn't seem unreasonable to add another.
For reference, $9k is roughly 300x the "normal" price.
This is bad news.
Speaking of scraping, does anyone know where one can get a hold of full text news articles/press releases for nlp research? Most APIs that I have found only offer partial texts.

I know that Aylien has an API for this but it's out of my price range.
Not an expert. But there are a few ways to look at this.

Bodies that are in stable orbit can have only a specific velocity which is a function of its distance from & mass of whatever it is orbiting. So orbiting satellite's speed can be inferred from its orbital height.

There are ground based tracking stations that can technically measure the speed of any orbiting body.

Also read somewhere that LEO satellites could use GPS receivers to get a fix on their position. measuring change in this position also gives velocity. There a bunch of limiting conditions around max-height and velocity for this to work though.
> And I guess for the whole world you do need a decent computer.

Nope, resolution is the problem, not scale. You need low orbit stereo photos, like from an airplane. Without clouds. With satellite you only get 30m, with airplanes you get under 1m. Cities usually rent a plane a year to adjust their maps. Countries don't, they usually just rely on the cheap satellite photos.
Yes, reposts are ok after about a year: https://news.ycombinator.com/newsfaq.html
The new Leaf is V2G capable. Devote your battery to shaving peak load a few times a year and you're going a long way towards closing the price gap with an ICE.

IIRC, Tesla decided against V2G years ago out of concern for battery life, but given that they're now claiming the batteries will outlive the cars that decision may change.
Probably not as long as those two have some of the most profitable companies in the world behind them. We might get one of them pushing an replacement (e.g. Fuchsia), but competing against either of them when they've got the resources at their disposal they do currently seems destined for failure.

At best, we might see an open source contender gain some traction, but there's not really the same lineage to draw on there either. Linux at least had a few decades of Unix software and UI (including text consoles) going for it. An open source competitor to iOS or Android will either be copying what they do, or making it up as it goes along, which is unlikely to yield major advantages they haven't already taken advantage of, IMO.
https://codeureka.blogspot.com/ mostly python related stuff and other stuff with which i'm tinkering.
Negative Interest Rate Mortgages
I've been using dc for a while now, is there another one you'd recommend?
Hell yeah, bicycles with nice thrusters and wings that automatically extend out from drag at certain so that you can glide and coast a bit!
Crypto Indices and What You Need to Know About Them. Full Step Guide
I imagine a ridesharing / uber-like model will be dominant compared to private ownership and personal piloting. But these things are going to be incredibly annoying and disruptive -- the various drone delivery efforts already seem loud and stress-inducing. I imagine airspace restrictions on these are going to become common in the near-ish future.
Same question as always applies: how much energy does it use compared to a car that drives on a road?

The article does mention electric (or hybrid) power, but since electric cars are a thing now, when comparing alternatives it seems like this would not have the lowest energy usage.
> It is actually scientifically clear that women are childlike

Since I just asked you not to do this and explained why at length, it seems clear that you don't want to use this site as intended. I've banned the account. If you don't want to be banned, you're welcome to email hn@ycombinator.com and give us reason to believe that you'll follow the rules in the future.
I think those answers are actually wrong. When the object casting the shadow moves, the shadow remains in the same place for an observer in it until the light from the source reaches the observer inside the shadow.

I know that's a weird explanation, so consider:

t0: S~~~>O U (shadow exists)

t1: S~~~~~~> U (shadow exists)

t2: S~~~~~~~~~>U (shadow !exist)

Where "S" is a light source, "O" is an opaque object, "~" are photons traveling to the right, "U" is the observer, and "t0", "t1", and "t2" are times (increasing).

At time "t0", "U" thinks he's in the shadow.

At time "t1", "U" thinks he's in the shadow.

At time "t0", "U" thinks he isn't in the shadow, since the photons are now hitting him.

A similar calculation/thought-experiment can be done for shadows with "angular momentum", in case you think the tangential velocity of the shadow will exceed the speed of light.
Would be nice to contrast this with the energy necessary to produce 1 kilogram of various foodstuffs.
At https://news.ycombinator.com/item?id=20683397 you wrote: "Breastfeeding is a necessary part of taking care of a newborn ... plus the vital component of breastfeed"

Now you say you didn't write that?
Or the other way around. In USSR, at least, few power plants were built closer to aluminum ore deposits.
Google seems to see robots.txt as "more what you call guidelines, than actual rules". Sites that block googlebot or all bots with robots.txt still turn up in google searches, just without a description, and are obviously still indexed.
I’ve mostly stopped using Google search due to the amount of sponsored/summarized content on the first page, which either renders my search useless (too many references to generic pieces or reviews rather than actual product pages) or abridged snippets from web sites (that often carry just enough information to be misleading).

I use DuckDuckGo, obviously, especially if I need technical information.
I was drawing a comparison between the people inside Google fighting against e.g. censorship and military contracts and others which fought similar fights before them.

I did not say that the same vocal minority is responsible for all progress. Neither did I say that all vocal minorities are alike. All of this should be blindingly obvious to any adult, unless they're trying to twist words, be pedantic or generally argue in bad faith.
Seems to work fine here (Firefox 68.0, Radeon R370, Fedora 5.2.7-100.fc29.x86_64, KDE/X-Window). That is, I can see the satellites and the rotating globe with strips of land gradually revealed.
I'm guessing the light has far outpaced any matter from the event, no?

It seems like the effect of that event could be felt only millions of years after the flash of light, no?
How I Built A Twitter App That Got 250,000 Users in High School
I think the difference is between the one which you can grow Vs the one which you can synthesize.

If you can grow a drug then you need to move it if you can synthesize it locally then there is no need to transport it.

Synthesizing a drug has much smaller footprint so easier to hide the operation Vs growing some drug.
Cool visualization. Would be neat if we could rotate the globe
Ah! Got it. Thanks!
I wouldn't call this a flying car, I would call this a quadcopter with wheels.

While the prospect of having less traffic jams is desirable, the odds of being T-boned from above or below by a distracted pilot become greater than zero.

I think we'll need Type 5-and-then-some AI pilots before any of this becomes a reality in day to day commutes.
Ehhhh, the aircraft flew into the trajectory, are there no other comparable scenarios where there's an intersection that can happen accidentally?