skysight-inc/HackerNews huggingface dataset:
> I'm picturing a high school math teacher trying to support 20-30 kids running 20-30 different BYOD'd devices

I don't get this fear of BYOD. It should be fine to say "these are the devices I'll support, if you'd rather use something else, that's fine, but I won't be able to help you."

(In testing situations, I do understand the fear of BYOD for devices that might provide too many capabilities.)

When I was in high school, my teachers had no problem saying

- Here is a list of the devices that are allowed on the standardized test. If you're planning on taking the test, I advise that you use one of these for the duration of the course, so that you will be comfortable with the device you use on the test.

- Here is is a list of the devices that I am familiar with, and can support. I advise that you use one of these devices, so that if you have trouble with it, I can help you. You are free to use a different device if you like, but if you have trouble with it, finding the solution is your own responsibility.
I had the same at uni, no calculator allowed at any of the non-stat classes. You had to memorize the table or rules for a few special sine/cosine values, but that was it.

Then my gf had to take some extra math classes for a program she wanted to take, and I got to help her as she had been weak at math in high-school.

At just about every problem she got all confused looking at her graphing calculator, and I'd ask "why are you looking at that thing for?"

"Well, I'm trying to find the button to compute the answer".

After a little while like that I simply took her calculator away. Took a couple of weeks but she finally got an understanding of the math. In the end it turned out she is actually quite good at math, and passed the courses with high marks.
"Often overlooked" might be a better term. This seems to be well-known to biophysicists studying nucleic acids but doesn't trickle down to the genetics/biology side of things.
Scott Rifkin launches new magazine
Gatwick Becomes First UK Airport to Permanently Use Facial Recognition to Board
I don’t think the cat thing helps to explain this, especially with the finality association of “dead”.
Secret Cameras Use AI to Catch Drivers Using Mobile Phones
Unfortunately I don't have screenshots. I'm happy to provide more info -

for instance, to those who might say "she just didn't want to acknowledge you had matched," I saw it with my own eyes and also we were already involved with each other at the time.

FWIW, my perception is that this is not the case on Tinder, but obviously can't be sure.
I read the first few chapters of that Manning book. I really enjoyed it.
That's odd, TBQH. Contact webmaster@ with some details about the connection (your IP at the time you're seeing the problem, as well as your UA - all stuff you can get by visiting /cdn-cgi/trace) and I'll see if there's anything we can tweak on our end. No promises tho!
from the science journal DUH
irrc you can have a program that stubs the clearing of memory. it displays the message but doesn't actually do it.
Ok, we changed the title from Show HN: Stack, a Minimal “Anti-Goodreads” to what the page says.
It’s true, I don’t know what I was thinking. The barometric formula that gives the density gradient for each (ideal) gas depends on the molecular mass so the profile will be different and the composition of the mixture will vary with height.
This is Claudfare saying that now that they arbitrated X and everybody said "OK" they are moving from infrastructure into infra and arbitration.

My question is, what if you are starting an alternative search engine or something legit?

Edit: my point is, the rules than make a legit or not bot, crawler, scrapper etc. are not clear at all.
Interesting premise, but be careful with the linear thinking here. As a counter example, Icelandic didn't change as much as English in the past 200 years. For English, one would probably need to look even further back in time than 200 years. Change in language use is somewhat related to the number and diversity of speakers and the number and diversity of english speakers didn't grow linearly in the past 200 years and probably won't grow linearly in the next 200 years.
Polybius – The Video Game That Doesn't Exist [video]
There's no negative feedback loop to vaping, its like if you could drink with no hangovers.
That sounds like question 12 from the FAQ ;)
>I propose the Uber way should be banned and punished with extreme prejudice.

I'm not arguing here, just thinking it through... What is the alternative? Do I need to haggle with literally every city I want to have a presence in? Even though there's no law against doing what I want to do? Seems like the scooter rental business would simply never exist in the first place, it would be a huge deterrent.
A guide to set up your own round-robin DNS-over-HTTPS proxy for privacy
Copying a file so as to get intermediate drafts is an inferior solution to proper versioning, as any developer using a version control system will tell you (moreso if, like me, they started programming before VCSs were a widely used industry standard).

I agree proprietary lock-in is a pain and a huge risk, but I'm talking about fundamental storage models here, not particular implementations (where the problem is lack of interoperability, not the storage model; a proprietary file system doesn't create lock-in, because there are open standards to get your data out of it).

The best content storage model for end users I've seen is the wiki, where you get content versioning for free, although it doesn't separate storage from publication. A wiki where you could keep local separate branches of content would be ideal, but a.f.a.i.k. the only wiki system using that model (shareable local copies) is the Smallest Federated Wiki[1], and it hasn't gained much tracktion.

[1] https://github.com/WardCunningham/Smallest-Federated-Wiki

> And asking the user if he really wants to save the file is probably just a good idea. If he ignores the message and throws away some work, he has learned a valuable lesson

See, that's the kind of comment explaining why users secretly (or openly!) hate computers and think they go after them. Too many developers creating their software are actively disrespecting user's work and their time, even decades after human-computer interaction specialists found the best practices for caring about the user and making their life easier.
Who are you referring to?
You can implement them like that. Anything that has a quantum state that doesn’t decohere too fast will work. The hard part thus far has been that almost everything does decohere too fast.
Interesting and informative read. In particular, I like the way you explained how the ad selection process works on a typical page. I've been looking for a reference to link to for an article of mine about ads.

Speaking of ethical practices, why is there a notification icon on a blog, and why is it having a seizure? :).
https://news.ycombinator.com/item?id=18165218 was 11 months ago, making this one a dupe (see https://news.ycombinator.com/newsfaq.html).

Also discussed in 2016: https://news.ycombinator.com/item?id=12349391
This is a pretty good example of a useless comment. Telling the person to simply stop doing what they are currently doing is not a solution. Perhaps, instead, you could offer a different way to handle the situation outlined by the question.
No, that's indeed a quite popular approach.
This is much better alternative. The little bit of CPU time you burn probably won't even step up your fan or impact your battery life noticeably. What it will do is change the economics for bots so they go out of business. If there are less bots, then the other, more annoying countermeasures can be scaled back. Everyone wins, except the bots.
This summer, my university took out the blackboard in the room where I teach, replacing it with a horrible whiteboard. Although only a few weeks old, it already cannot be erased properly, as far as I can tell.

I have my own markers and eraser to avoid the "tragedy of the commons" with dried-out markers. I recommend this scheme to anybody, because it avoids the frustration of going through one pen after another, in search for one that writes without skipping.

But, even with a good marker, I find it quite difficult to get a constant-thickness line, especially for quick markings on the board. So, almost everything I write gets erased at first, getting only a bit better as I reorient the pen. This is quite annoying for students.

And I can barely write mathematical symbols with those damned markers.

Also, the shiny whiteboard reflects the overhead lights, which means that it's hard for my students to see what I'm writing.

On the educational front: nothing gained, quite a bit lost.

On the cost front: pens burn up money faster than chalk, and whiteboards need to be replaced every few years, because something happens to make them difficult to erase.

I suspect that chalk causes no health problems. But volatile fluids, and whatever that ink is made from? I worry a bit about those.

One of the things I saw in many student evaluations of my teaching was how much they liked the blackboard. (A lot of profs show slides, which is a disaster, in my view, for mathematical subjects.)

The only good thing I can see about whiteboards relates to faculty replacement. It encourages people like me to take an early retirement and get the hell out of the place.
Did this the other day on a trip to the city. Was thinking these exact same thoughts, "how often do I look at the photos anyways?"!

Traveling without a phone removes a ton of decision points too. "Should I take a photo of this?", "Should I look up this fact?". It is really nice. I will say it is nice if someone else has a phone though, in case you really need one for a phone call, to meetup with someone in your group, or GPS.

Bittersweet for sure!
Here .. finding the circuit that saves more cats from death is already a useful thing. Of course, i dont see an obvious algorithm to search for that circuit so it would have to be brute force. but now this computer makes even brute force possible
VM Orchestration Using PowerShell Core and Azure Functions
This sounds a lot like Healthcare 3.0

https://www.health3-0.com/
It's perfectly possible. The problem is that these very scripts the ad network are serving are what people are objecting to. Exactly these scripts, and exactly this tracking. It creeps people out.
That's more orthodontics. Sure, they would still have business fixing broken teeth and such, but their bread and butter is cleanings and fillings, which would be eliminated.
It is supremely annoying that the polygon icon in the top-left of the navbar does not take me back to the home page, instead it's just a dumb play-thing that I can drag around with my mouse.

People always judge books by their covers.

edit: that reads in a really nasty tone, imagine that I had instead said "Unsolicited usability tip, ... " :).
> I've seen first hand other Latinos completely over-react and get defensive in situations which were completely uncalled for.

> Someone makes a joke about Mexican food and they feel 'belittled and insulted'. Then because they are so insanely sensitive and tend to take everything personally, other co workers ignore them. To me, that's the logical conclusion of what happens to people with a victim mentality. I'm Latino and feel they were wrong for being sensitive. Am I wrong too?

https://slatestarcodex.com/2017/10/02/different-worlds/ (read it!)

This is a personality difference. Who's wrong depends on the unknowable intentions of the different people you interact with. In a more practical sense, who's wrong depends on who gets better results from their interactional style. You seem to be saying that these other people are suffering penalties for their heightened sensitivity; on that analysis, you're right and they're wrong.

> Both of these are 'sexual harassment'. One of them would warrant a VERY strong response. The other... not so much so. I think some people when they read sexual harrasment think one extreme while others think the other. But this only leads to people talking over each other without understanding. Using words with specific and concrete definitions is necessary for communication.

> At some point in the last century, words related to victims and attacks became so open ended that it's really hard to understand what is being discussed.

These terms are intentionally vague for diplomatic, coalition-building purposes, in the same way that an important treaty between premodern Russia and China was drawn up in Latin, so that the treaty could avoid clearly stating anything that either side didn't want to see in there. Clear communication isn't the goal, it's something that people are actively trying to frustrate.

Compare this discussion from Mary Beard's SPQR:

>> The first word of the second book of Livy's History, which begins the story of Rome after the monarchy, is 'free'; and the words 'free' and 'freedom' are together repeated eight times in the first few lines alone. The idea that the Republic was founded on libertas rings loudly throughout Roman literature...

>> But how was Roman liberty to be defined? That was a controversial question for the next 800 years, through the Republic and into the one-man rule of the Roman Empire when political debate often turned on how far libertas could ever be compatible with autocracy. Whose liberty was at stake? How was it most effectively defended? How could conflicting version of the freedom of the Roman citizen be resolved?

>> All, or most, Romans would have counted themselves as upholders of libertas, just as today most of us uphold 'democracy'. But there were repeated and intense conflicts over what that meant.
Jesus (PBUH) was never put on the cross, they crucified the wrong guy.
Yeah you can get to the generated C. See this SO question.[0]

Give it a try :)

[0]https://stackoverflow.com/questions/29956898/how-do-i-get-th...
Seems like there are too many orders of magnitude more CO2 for Venus to be the result of some sort of ecosystem issue, if it was originally like Earth.

It would have to be more like the entire crust and a substantial layer below was turned over and combusted, wouldn't it?

And we know that Venus has a flagrantly unusual rotation.

So wouldn't the obvious explanation be a giant impact, with parameters that didn't lead to a big moon like Earth's?
>Now if Apple/Android made a simple way for a test proctor to put your phone into a single app only that you couldn't easily break out of, maybe things will change

Exam4 and other software is built so closed book exams can be taken on normal computers. This is a pretty well understood problem.
I suspect this was posted here because of some recent threads that were very critical of Goodreads. You might search back through recent HN history to find some of the things people dislike about it.
Good point; forgot about search. I don't imagine it to be particularly sophisticated (probably just substring matching), and last I checked it has a minimum search term length (i.e. ignoring any search terms less than three characters in length); between those two factors it could probably be kept pretty simple and lightweight.
I'm going to add one to my previous lists: the problem of narrative.
Ask HN: How do you handle/maintain local Python environments?
I'm having some trouble figuring out how to handle my local Python. I'm not asking about 2 vs 3 - that ship has sailed - I'm confused on which binary to be using. From the way I see it, there's at least 4 different Pythons I could be using:

1 - Python shipped with OS X/Ubuntu

2 - brew/apt install python

3 - Anaconda

4 - Getting Python from https://www.python.org/downloads/

And that's before getting into how you get numpy et al installed. What's the general consensus on which to use? It seems like the OS X default is compiled with Clang while brew's version is with GCC. I've been working through this book [1] and found this thread [2]. I really want to make sure I'm using fast/optimized linear algebra libraries, is there an easy way to make sure? I use Python for learning data science/bioinformatics, learning MicroPython for embedded, and general automation stuff - is it possible to have one environment that performs well for all of these?

[1] https://www.amazon.com/Python-Data-Analysis-Wrangling-IPython/dp/1449319793

[2] https://www.reddit.com/r/Python/comments/46r8u0/numpylinalgsolve_is_6x_faster_on_my_mac_than_on/
Vocabulary in terms of slang and so forth will change, but I wonder how media will preserve the tone, accent, etc. that we speak in. The Transatlantic accent may be dead, but the General American newscaster English is trapped in amber.
The government. There is big money from cigarette taxes. Juul/vaping pays none. Juul IS big tobacco.
This is great. There is definitely a need for a site that just lets you create a "stack" of books for x topic. Good reads is bloated for this. I'm tackling the same problem with my app. Good luck.

[1] https://bookshulf.com/toplists
"As fast as C" would commonly be interpreted as "a program written in it will be as fast as a well-written C equivalent", not as "there is a C program with the same performance characteristics".

That a language is compiled to C does not mean that its compiler is going to be able to produce a C program that's as good as a that well-written C equivalent. (A relatively obvious example would be a compiler that introduces a heavy runtime, and doesn't give the C compiler enough information for it to get rid of the runtime)

It's the same with assembly code: that a compiler produces assembly does not mean the resulting program is fast.
personally I'm with you, although I'll grant reasonable concessions (eg, not many citizens need surface-to-air missiles). the problem is ideological unfortunately. people simply don't share your definition of "freedom" or value it.
Yes, but unless you tell us how we can profit from that, that's not an interesting answer.
It can't really be explained, we kind of accept it works like it has been in both states at once until the box was opened. Similarly, we don't really know how to explain how particles travel by both slits at once in the double-slit experiment.
Despite being an avid gamer, this looks to me like Philip-Morris teaming up with the American Cancer Society to fight lung cancer or Coca-Cola working with the AMA to fight obesity.

Considering the electricity used to play games, to say nothing of the waste generated by the endless upgrade treadmill, I'm shocked that nobody attacks gaming and gamers for contributing to climate change.

If gaming contributes to climate change, then Sony is part of the problem. Nothing will change that.
Yeah, that’s what I did. I also used a TI-89, which was fairly new at the time, and thus, the teachers/proctors weren’t as aware of its features and where to look for stuff that was hidden away.
Lost continent found under Europe
>'black' and 'white' aren't simple at all.

well seems to be very simple - either there is a hat or there isn't

https://twitter.com/Dk3Kbball/status/1174115660219072512

That illustrates the depth of the issue - while directly racist data can possibly be removed there are many proxy/correlated attributes (as any insurance/mortgage/etc company knows), and to find correlations is the core nature of the machine learning systems (at least the ML as it is currently known to humans).
Oh, I'm gaining an appreciation of that.

There are numerous reasons for posts to fail to take traction on HN, and I've had my share of hits and misses. Your suggested mechanism may be one of them.
"For example, the program defined one white woman as a “stunner, looker, mantrap,” and “dish,” describing her as “a very attractive or seductive looking woman.” Many people of color have noted an obvious racist bias to their results. Jamal Jordan, a journalist at the New York Times, explained on Twitter that each of his uploaded photographs returned tags like “Black, Black African, Negroid, or Negro."

They claim this is AI, but earlier in the article, it states that mechanical turk was used. Mechanical Turk is basically just people getting paid pennies or fractions of a penny to tag these photos.

Many people on Mechanical Turk are from countries where English is not their first language and they don't have the same idea of racism as we do here in the US, which would explain the racist tags mentioned in the article.

This doesn't really show us anything about AI and racial bias and more that other countries still aren't up to our levels of what we consider decent.
I can understand how, for some conditions, exercise could help, not just physically, but against the depressing effects of chronic pain.

But absolutely not for all conditions. For too long, doctors have pushed graded exercise programs for essentially all chronic pain conditions, despite good evidence that it can be harmful, even permanently, for some conditions (e.g. CFS).

I personally suffer from chronic pain, caused by small fiber neuropathy. I used to love walking, and I want to exercise - but if I do too much it can take days or even weeks to recover. A few times, I'm fairly sure I made things permanently (or hopefully semi-permanently) worse.

So, yes, exercise does help some people, but we must be careful not to push it as the be all and end all.
“Coal is the future of life on Venus!”
Just for fun, here is what I would currently call nirvana when it comes to writing React components (12 lines compared to 35~38 from the article)

(ns demos.core
(:require [reagent.core :as reagent]))

(defn DarkMode []
(let [dark? (reagent/atom false)]
(fn []
(.setAttribute js/document.body "data-theme" (if @dark? "dark" "light"))
[:label
[:span "Dark Mode"]
[:input {:type "checkbox"
:onChange #(reset! dark? (not @dark?))
:checked (when @dark? "checked")}]])))

Done with ClojureScript + Reagent
I thought I learned this in HS biology 25 years ago.
They did fix them. I still have them. Calf leather. They're very nice. That is beside the point and you know it :-)

Ex finance guy? OK, that explains your haughty mentioning of data, and being out of touch with many Brits :-)
> I bet the worst medical advancement or study result for dentists would be the one that definitively shows six-month checkups aren't better than annual.

It depends on the person and the chemical makeup of their mouth in conjunction with their brushing and flossing habits.

Some people can be fine even if they go years between checkups. Other people like me need to go three times a year even though I brush and floss every day.

Gee, I wish someone would study why I need to go three times a year and maybe figure out how to change the chemical makeup of my mouth so I didn't have to!
I didn't claim astroturfing and frankly I don't think that is quite what is occurring. And FWIW, it seems like the general tone of the comments has changed substantially since I posted.

Sorry for the misunderstanding.
Right. China using slave labor, in dangerous, polluted, deadly manufacturing hell holes, to make ladders 10x cheaper than the USA with human rights, polution controls, unions, etc. etc.
I had one professor that allowed us to use the Internet on tests.

They were by far the hardest tests I took in college.
Quite seriously, if you know the right people, those who hoarded it, it's available. Or buy the Korean stuff; they still make it. Its become a weird business.