skysight-inc/HackerNews huggingface dataset:
There are a lot of these. You see a couple of papers on different types of linear actuator materials every year at ICRA, just to pick a robotics conference at random.

To date they’ve all had the same problem, which is that their energy efficiency is usually less than 5%, and often less than 1%. Compare this to a decent brushless DC motor, which will have an energy efficiency of 85%. Often their bandwidth is very low as well, like less than half a hertz. So they work okay if all you’re interested in is pull force and compactness, but they turn out to be really unsuitable for most robotic applications.

Note that this particular article gives neither an energy efficiency nor a bandwidth figure.
I think no one should blame people for donating canned goods to food bank as the action is most likely to be driven by the anchoring effect of the name "food bank". When I first read about the title, I was thinking what other food I can donate, donating money wasn't seem to be in the realm of option.

Simply change the name "food bank" to "food fund" will solve the problem.
I understand that $5 at wholesale prices could be three times as much food than at retail prices. But the example literally says that $5 of cash turns into $15 of food plus $10 of cash.
Dopamine is the only thing that truly makes me happy.
I agree that there would probably still be major cities at the same rivers, but they would not be speaking any language you would recognize.

Also, it's not that hard to discover electric light if you have a fully working power supply already... just about any piece of conductive material that is too small to handle the current going through it will make some light of varying intensity, so that realization probably came very very quickly after the concept of electricity was born. (The hard part was then to make that light last.)
> since devices can draw 100W of power through the port

Devices can only draw 100W of power, which is 5A at 20V, after negotiation; before negotiation (or if negotiation fails), only 5V is available, like in the older USB connector types.
Wow. Did they ever try reading the text on their shiny responsive layout on mobile? Over half my screen is covered in overlays.
For the purposes of this discussion, that's probably true. However, I wouldn't be surprised if some super-precise slow motion video of a skater gliding on one skate revealed small adjustments analogous to the steering motions of a cyclist.
My experience with traditional fingerprint scanners on laptops is that they're extremely picky and won't work if you are a bit sweaty or the air is dry or the day of the week starts with a T or something. Having it fail to read your finger several times on a login pushes me back to regular passwords.

The enrollment process takes forever for each finger too.

Also, it doesn't work in Linux.
Adaptive Thompson Sampling Stacks for Memory Bounded Open-Loop Planning
Any Boeing designed, built or remanufactured in the past 20 years is fundamentally risky to the flying public because of the corrupting influence of regulatory capture, i.e., lax oversight of phases of system engineering and manufacturing, self-certification.

In 2010, Al Jazeera presented an investigative report about Boeing subcontractor Ducommun's substandard manufacturing practices for critical support structural ribs and door frames that Boeing installed on 737 NG (-600/-700/-800/-900) airframes and management subsequently covered up an internal safety investigation. As a direct consequence of these choices, several 737 NG's have broken up on hard landing and runway overruns, killing passengers, whereas in the past, fuselages survived intact under similar conditions.

Also, the 787 is a disaster waiting to happen.. anyone who steps foot on this clusterF deserves what they get.
If you accept that your only political power is your power as a consumer, they've already won.
Money is fungible. Amazon can afford to pay better. The only data you need to know that is what I gave.

You’re giving a reason why they might not want to. I don’t think anyone here is arguing that they want to. If they wanted to, they would be doing it already.
Yes, but I should hope that neither country is about to put Trump or Johnson on a bank note! To me, being worthy of becoming a symbolic role model requires very different virtues than being someone I would vote for, and I say this as someone who wouldn't vote for either Trump or Johnson.
I don't think you can separate the setup from the work so easily. I highly doubt if you just had the "fun" play then it'd be a successful game. There are plenty of action packed alternatives if you just want the battle part all the time.

People like grinding. Just not when they have to accept that they're grinding for the sake of grinding. There needs to be an upcoming battle or achievement or texture pack unlock or a few extra bucks in the bank in order for them to get their "I'm being productive" kick every time they complete one of their many short, simple, well defined grind tasks. Just a continuous stream of little wins.
This looks like something similar to Crenshaw's excellent tutorial of the same name:

https://compilers.iecc.com/crenshaw/

and its x86 port: https://github.com/lotabout/Let-s-build-a-compiler

As interesting as Lisp-family languages are, I still think it's better to use something with more traditional syntax and start with parsing, because that both reaches a much wider audience and gives a very early introduction to thinking recursively --- the latter being particularly important for understanding of the process in general. A simple expression evaluator, that you can later turn into a JIT and then a compiler, is always a good first exercise.
Medical Museums and Augmented Reality
The backwards compatibility of that connector on my S5 saved my ass numerous times. I really appreciate that design.
Will pass that on to someone I know. They are using high-strength cranberry extract and zinc, with great success (cranberry specific for UTIs, zinc just to ensure not deficient, as that impacts immune system). UTIs still occur occasionally but rapidly subside without antibiotics. Zinc supplementation should be early in the day, or there will be some wild dreams. Avoid zinc oxide though, imho. I am not a medical doctor, this is not medical advice, everyone must do their own research/talk to doctor etc.
You might also think about the effects of amplification and large video screens that can allow some live performances to reach more people.

But we should ignore that, because the point of the comparison is to find something that hasn't changed between now and then and compare the cost of labor. This is of course cherry-picking, but it's not intended to be typical. It's a striking example.
The Perfect Media Server – 2019 Edition
At the very least it would be a fun way to descend steep hills.
Have you looked into the effects of zinc supplementation of common cold frequency and severity? I am not a doctor, this is not medical advice, etc.

https://www.mayoclinic.org/diseases-conditions/common-cold/e...
If unicycles had come first, would bicycles have ever surpassed them?
As a lowly passenger I don't get to choose which plane I am assigned to, also the airline seems to change it on a whim.

At this stage I'd be unhappy to be on a modern Boeing but I don't know what I could do about it, except cross my fingers and hope I won't be the next victim. I don't know what rights I'd have to claim a refund or demand a different model plane.
I'd rate Henry Maudslay's invention of the three plate technique for producing extremely flat surfaces (popularized by Joseph Whitworth) as the most important step toward modern mass production. All precision machining ultimately depends on accurate surface plates, so without them interchangeable parts are impossible.

See the excellent book "Foundations of Mechanical Accuracy" by Wayne Moore of the Moore Tool Company for details.
He really ressembles Jaleel White (aka Steve Urkel) :-o
Can second the recommendation. When I was looking, I think it was the only USB-C/TB3 dock that supported multiple 4k displays at 60hz (one via Displayport and one via a USB-C to Displayport adapter). Their website looked a bit fly-by-night, but I've been happy with the product.

The only issue I've had is that my Macbook sometimes flips my two displays, but I believe that's an OS problem.
It's not what you know, what you achieve or what you can do; it's who you know, who your parents are and how much money they have. Basically, the same as the criminal justice system.

I don't think "personality" rates very high in the interview process; it's really more about legacy, money and other pedigree qualities. They may swear up-and-down about diversity and other feel-good, aspirational virtues, but they're a business bent on exclusivity, first and foremost.
As people are saying here, what is "promoting the open web"?

Also, web apps basically dilute the list, maybe you should focus on native macOS/iOS apps to stay niche.
How Does Wi-Fi Work?
Well shit, I stand corrected. Thanks for the links!
Perfect doesn't mean absence of pain, conflict, or struggle. Certainly a physical fitness regiment would suffer under that attitude. Why should a mental or social fitness program be any different? Yes, perfect means perfect, but that doesn't actually tell you what perfect means.
As a Minnesotan, probably nothing. Jobs? It’s probably the only argument one could make, but I’m not going to make it. It wouldn’t make me sad if Cargill stopped exploiting everyone and everything.
Waitresses make less than minimum wage, don't they deserve healthcare, to raise a family, to live in the center of some of the most expensive real estate in the world and have at least two weeks paid vacation per year? If you were to tip say $50 to $100 each time you ate out this could be a reality. How much would $50 be compared to your net worth, less than 1%? Greedy capitalist.
As someone who grew up on games during the GameBoy and N64 era, I have fond memories of gaming and want my son to grow up with gaming in his life.

But in my "old man yells at cloud" state of mind, I don't want him to grow up on gaming of today.

He's not yet old enough to play video games, but when he is I'm inspired to implement something similar to what's outlined here: https://medium.com/message/playing-with-my-son-e5226ff0a7c3

TL:DR Start his gaming journey at the beginning of the gaming industry (i.e. Pong, Pac-Man) in the hope that exposure to what gaming used to be like will "inoculate" him against what gaming is like today.
Turing complete is not really a big deal. Two counter machines, two stack machines, and other really simple machines are Turing complete.
OS-Agnostic Colored Console Printing/Progressbars in Python
There is definitely a difference. The problem with the vast majority of "Turing-completeness in X" claims on HN is that they are just logically complete Boolean circuits that are overgeneralized (infinitely tessellated or scaled) for free and cannot handle arbitrarily large inputs. They can only handle constant sized input lengths. To handle an arbitrary input, the circuit has to be resynthesized and created to handle that particular case length. This ends up being a massive leap in computational complexity from constant-time to decidable.

Some of these claims are even wrong since the posters don't bother analyzing whether their suggested generalization technique (e.g. infinite tiling) actually do let you topologically embed every gate and batch of wires into any Boolean circuit you want. This is quite common in 2D side scrollers where you have constant y-height and infinite x length. It just is not possible to communicate all the information you need for a computation from one side of the map to the other. This was the case with Minecraft prior to bidirectional flying machines. You could actually prove that any finite sized "machine" could not communicate an arbitrary distance away (think arbitrarily long Turing tapes) without losing some part of it going off in the distance forever. Hence it was not "Turing-equivalent" unless you used command blocks or gave some overly general infinite tiling capabilities.

Actual descriptions of Turing machines are finite in size/length. These "Turing-equivalent" candidates that keep popping up are not when laid out. This makes it pretty easy to run into uncomputability situations when you try to feed the machines a description of itself and compute some property (like a number = 2x its length). A typical Turing machine would have no problem handling this, though a Boolean circuit would.
As a three time immigrant, I have diametrically opposing viewpoints. My view is that immigration mostly benefits nations, and emigration always hurts them. Immigration increases the labour capacity, and nations that utilize this resource in a pragmatic manner are net beneficiaries.

My earlier point was around the fact that US isn't very efficient at managing this resource (letting arbitrary people through the physical border, while holding up highly educated folks in immigration queues for years).
I think there are plenty of companies who there who do everything in their power to addict people to their products. Whether it's moral is a completely different discussion, but I definitely don't think this pattern is unique to game developers.
> Suppose you're evaluating whether to consider zip code in loan approvals, and that doing so improves the overall prediction rate, helps hispanic applicants, but hurts black applicants.

That's not disparate impact. The legal code does not follow exact predicate logic, where if you meet conditions A, B, and C, you violate the law. It tends to follows rules of fuzzy logic instead--that's why you'll see legal opinions that involve words like "tends to", "probably", "factors" a lot. Particularly where a strict interpretation would lead you to an apparent contradictions, the court system instead tries to find a reasonable course of action. Indeed, often merely showing that you are making a good-faith effort to comply with all applicable laws and regulations is sufficient to absolve you of penalties for failure to comply.

Ultimately, the arbiter of reasonableness isn't a blackbox oracle. It's a panel of 12 members of the general public, or perhaps a panel of 3-9 judges.
so douglas adams was right, the earth is just a giant computer
What you are talking about is a subset of games today - there are still tons of great games out there with ethical monetization (more than there ever have been, in fact).

Yeah, you have to skip some of the big names and a lot of the mobile space, but that still leaves a lot of great stuff out there. While letting them experience a ton of classics certainly isn't a bad idea, it also isn't the only way to avoid predatory monetization.
Banning anything is often not a good policy since it usually creates secondary markets.

Depends on how you count the date, this could create markets where people in different countries will sell Google search results to each other. New VPN providers pop up with the promise of 24h Google coverage. Software startups switch to a system where you bing work 16 hours straight, then get the next 32 hours break and repeat. "Breaking news" has a new Oxford definition, since newspapers change plan to publish news 5 minutes before Google opens for search. Electricity price increases for the first 2 hours of the odd-numbered day to combat the spike in demand. Comcast introduces a new fast lane at only $199 a month that has no slow down access to Google. University groups lobby for a new exemption in the law allowing unrestricted weekdays access. Political parties lobby for also blocking Google on the day of debates, regardless of whether it's an odd-numbered day. It's kinda fun to keep going.
Yes, it makes sense that the program can do a subset of what the computer is capable of.

Regarding HTML, I wouldn't say it's analogous to a simulation game. Maybe the map, but the running game is more like HTML + CSS + JS
So they are to run at a loss? Why not simply close down the warehouses and liberate these poor people from these terrible jobs?
On some Macbooks, the USB-C on the left and right side don't support the same max bandwidth
As long as people keep coming to the US to get an education, that helps the economics of academia; out-of-state tuition paid for by somebody else (usually, countries or rich families) is $$$$. Maybe the problem is the US isn't as welcoming socially, politically or bureaucratically (visa process) as it once was? That's a PR image problem that the current political climate tarnished through inept and ignorant messaging.
“If you were to tip say $50 to $100 each time you ate out this could be a reality.”

Exactly how often do you think I eat out?
As a casual space program buff, I thought the same. But I think most people do not realize how sophisticated this early computer and software were, and how important to the mission. The article emphasizes the well-calculated trust that the engineers and astronauts put into this first computer-controlled spaceflight operation.
https://mobile.twitter.com/benioff/status/549339156854214656
Hmm, it might defeat the purpose of a URL shortener, but I pictured something like what3words [0] (geocoding with memorable/human-readable words) but for URLs - for example: big.brown/bear

[0] https://what3words.com/
Also, barrel jacks don't have just one polarity. I learned that the hard way when I fried my guitar amp as a kid.
Hyper Truths Area 51 –. Rap music –. Alien DJ's and whatever floats your boat
It's a node-based programming language— think boxes and wires, or circuit diagrams. and you?
Desjardins to offer all members free, lifelong protection after data breach
There was a fad in the late 90s early 2000s for mountain bikes, mountain bikes are rubbish on road unless you kit them out with touring tyres, there is simply too much road drag. Also suspension looks flashy but is pointless on a tarmac road.

A rear suspension is stupid on any road better than cobblestone, but the shocked front fork on a hardtail is nice in many situations. If the commute is less than five miles or so, wider tires won't hurt anyone. I agree that I don't want knobby tires on the road, but it's easy to change tires. (All mountain bikes have easier-to-change tires than several road bikes I've serviced.)
Classic Water Hammer!

https://en.wikipedia.org/wiki/Water_hammer
In your example, a falling _might conceivably_ affect one person's conception. But even in that example, the odds are most likely that it doesn't.

Let's say 99 times out of 100, a delay of a few seconds doesn't impact whether one person is conceived.

There's a pretty big gulf to cross from that, to 'an entirely different set of people in one generation.'
Why don't we make them out of a polymer that will degrade quickly?
Never heard of it. I suppose that's intentional.
This is a good reminder to buy and use satnav modules supporting multiple positioning systems and technologies: most of GLONASS, GPS, BDS, Galileo, IRNSS, SkyHook, etc.

Disclaimer: Trimble Ltd. alum
It also loves the "carrot and stick" analogy, and gets that wrong too.
I am a DDG user for 4 years or so, and had very few quality problems. When I am not happy with results, I check Google, too. Most of the time, though, Google returns similar results.
I didn't even know they made 2.0/C cables.
Maybe Shorthand made it too easy to do all the overlays and timeline things, like when prezi first came out and everyone used a million zoom-in / zoom-outs in presentations.
Jerry (YC S17) Is Looking for a Director of Ops and Growth
Depends on your threshold for "familiarity". Anyone currently working on theirs will likely have a number of friends/colleagues working on ones of their own, include second and third hand knowledge accumulated from conferences and likely any modestly sociable CS doctoral candidate would know at least the loose structure, if not 30 second blurb of quite a large number of theses in progress.
Dang, you're always on top of HN, figuratively and literally. Thanks, bro for defending the community. :PrayerHands: :PeaceSymbol:
The University of Texas approach was fishing line OR sewing thread. (Just a twisted single-material polymer line.)

At the start of this MIT article, I was wondering if it was just a re-hash of the fishing-line 'muscle' discovery as well.

But it's clear that the MIT muscle coils up because of the difference in thermal expansion between two bonded materials, while the Texas one seems to be more about a coiling pattern that multiplies the effect of a thermal expansion or contraction of a single material.
Yeah, I've written off using emotiv for anything because they keep all your data, and can do what they want for it, and rent it out to you. Muse, OpenBCI and OpenEEG all the way.
Well "classic" water hammer doesn't involve the water igniting with the pipe material... ;-)
Small horned dinosaur from China, a Triceratops relative, walked on two feet
I wonder if a Amazon warehouse workers have tried using diapers & tried expensing them. Whether the claim for approved or rejected, it'd be +1 piece of evidence to highlight you-no-pee-pee shenanigans.
> if an animation/datablock was not assign to an object, you would lose it when you restart Blender

That's what the little "F" button on datablocks is for. It adds a "fake user" to the datablock, which means that it won't be garbage-collected away if nothing is using it when you close Blender.
Ably: Serious, serverless infrastructure powering the realtime internet
And also value in the worker's wages as well as customer value.
What exactly does one complain about? If I complain to a movie theatre for all the money I've spent on tickets, they're just going to say "Um, okay..?"
I'd be complaining like fuck if I had a mobile device with a USB-C port that can't be used for charging. That's the most ridiculous thing I've heard all day.
Yep, we will have to wait until 2020 but if Trump ends his term, the next president has a huge task of rebuilding the PR and get it back on track.
The ESRB is already a cancer, why would we want it to spread?
Hah, I appreciate you taking the time to answer all those, but they were mostly hypothetical questions I already knew the answers to but had difficulty discovering without doing a bunch of searching. Except the grease pencil thing.
A remote code execution vulnerability exists in .NET software
Different language but a similar diet at the list of domesticated plants and animals has not changed all that rapidly. Which means at least some aspects of culture would be similar.

As to light requiring a power supply that’s my point. Roll back 50 years to 1969 and they had integrated circuits, phones, radios, batteries, CCD, and networked computers. Without WWIII the odds seem high they would end up with highly capable cellphones with cameras, internet access, and reasonably familiar form factors due to human hands.

GPS being a free public system links to a specific aircraft being shot down. So that’s questionable, but we had early satellite navigation. Thus, the odds are good the military at least would have a similar system and if nothing else a paid for version via private companies seems likely.

Chaos theory uses the term strange attractors to these kinds of situations. Minor changes are generally going to end up in very similar situations.
Totally! You get a water hammer and thermite reaction all in one go! Eeeek!
Quantum Protocol Zoo
I've been using DDG almost exclusively & find it's results to be better than Google's with the exception of local businesses & maps. Google still has an advantage there.
> when I was at Google nearly all research & new features were done on the top 4B pages, and the remaining 150B+ pages were only consulted if no results in the top 4B turned up

This may help to explain the poor quality of some the results on queries I run on Google lately that return content obviously written for ranking in SEO but that have very little value.

I have 2 questions:

- What make"the top 3B+" the top ones?

- How can I "force"a search on the other 150B+ pages?