skysight-inc/HackerNews huggingface dataset:
My feeling is that what you say is true to a varying degree, dependent on the course in question. Maybe more particularly the level of the course. For proofs based math where the goal is to write a proof, I'm more inclined to agree with you. Especially since there can be more than one "correct answer" and seeing one may or may not help you at all in understanding why/how another one would be constructed.

But for lower level "grind and chug" Maths classes (High-school algebra, intro Calculus, non-proofs-based Linear Algebra, etc) I think there is value in having access to "the answer". Certainly at least for a subset of the problems one works on, IMO.
I'm shocked with how inarticulate the author is. I'm not getting any idea of what math class they are taking or what they expected to get about it. You'd expect a humanities student to be able to explain themselves better.

The one well-developed complaint is the one about not getting the answers. On one hand that sounds almost calculated to provoke the reaction that you had, but on the other hand for every math class I've taken I turned in the problem sets and had them get graded with corrections that were useful.
+1 for Firefly. At least they kind of finished it with the movie. I'll always be a browncoat.
An abundance of sparsities.
lobste.rs has a public log of moderator actions.

It's a fraction of the size of HN, though and requires an invitation to join.
I sleep much better in real dark. I used to work night shifts, so have years of experience struggling to sleep with too much light. I never did adjust well to it. Now I probably take it too far, taping over the power light on the phone next to my bed, etc. But I know I sleep better with the blinds down even just to filter out the light from a full moon.

No doubt for a lot of people light isn't a problem with sleep at all, particularly for younger people.
I believe there is a major misalignment of goals/incentives in undergraduate academia. As students we think the model is, we pay [quite a lot of] money to be taught useful knowledge in a rigorous way that means we will leave with real knowledge. Universities, on the other hand, seem to think the model is to churn out well qualified individuals in their field. There are two ways to accomplish that goal: doing the hard work of providing a real education to everyone; or doing the much easier work of filtering out those who don’t already "get it". This is why Universities don’t care that a class is reviled by all the students.
Same for me, though I've never made any money off it, or even played in front of someone. About 4 years ago I started playing with synths because I needed some music for a game dev project, and have loved it ever since (at great detriment to my wallet)
Sure. But do you go around claiming that the apple just sprang into your hand without a tree to grow from? That's the argument the post I replied to made.

And the common cherrypicking strawman again in this thread. No one claimed that Christianity is indistinguishable from Paganism, much like no one claims that the apple is indistinguishable from the apple tree.
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Learning by example is a thing in math too.
Learning theorems and methods is not sufficient, they are tools and you need training to master them.
Not everyone is able to generalize from one class example to other situations. For that you need to work with other examples. Not only the problems, the answers too.

Also if no one liked this course there is certainly a problem that can't be dismissed in a handwave like you did in your answer.
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Well, that's why local building codes exist.

Don't build a ten story wood building two hours from the nearest fire station.
Alright so here's a question: what makes you think that your (presumably) armchair understanding of the bill in question is better than hers?
As this seems to be old news, was there a reason why you posted it?

Edit: (2018) in the title would be in order.
Discussion here is such that I sometimes read the submitted link as an afterthought. Apart from the occasional distraction of a comment by dang, I had operated under the polite fiction that this was the result of self moderation.

Jeff's account leaves me conflicted. I resent heavy-handed, unaccountable moderation, and boy would I be pissed if I was accused of stealing accounts to upvote a HN story of all things. On the other hand, if the alternative is regressing to, say, USENET, what can I say?
Both of these concerns are a part of maturing as a software developer. Managing expectations, leading your team, estimating - these are soft skills required by a senior or above software engineer.

Estimates, as a rule, are never terribly accurate in the first place, often because of tech debt - adding in cleanup won't make them much better or worse. To give any kind of estimate in the first place, you need to be fairly familiar with the code, which includes the crufty bits that count as tech debt.
This project is very clever, because as a Django developer, when I tried to use. FastAPI, I didn't get the faith to learn another ORM.

I've been using django ninja for months and I can say that it's a very good replacement to DRF. It's way simpler to use and less bloated, thanks to pydantic.

However I would not use it for important projects in production, because of a lack of support and documentation, and the fact that it relies almost entirely on a single developer (like many other projects, right).
This sounds like problem sets above and beyond the homework. As in “Prior tests have problems like these…”
Broadly I think society only considers “harmful” activities as addictive - drinking, porn, your usual

If you can’t stop doing something that’s societally acceptable or even lauded, you’re just “passionate”
Imagine learning to code again. You're shown one for loop, a class header file, and a cartoon of a data structure. You write programs by hand on paper, submit them, and never get any feedback. And you're forbidden from looking at open source code. Some amount of struggle and self validation is fine, but unnecessarily wasting absolutely all your time on dead ends is a waste.

This type of bullshit is normal in crappy STEM classes. Universities are so concerned with keeping secrets that they won't give you the information in the first place. It's a sign of bad course design that's unfortunately common.

I took a couple classes that were like that, but I swapped the class for another subject those semesters and waited until it was offered again by a better professor. Same material, except I actually learned it instead of getting stuck at the starting gate.
> Because the USA is a large protectionist market that doesn't like EU companies doing business there?

Could you explain this one a little more?
I obviously don't know your specific situation, but often this is the result of idiotic cost cutting measures by universities.

As a lecturer, I've had several job interviews where half of the questions were some variety of "are you ok to put up with having way too many students and not enough time?". I had the luxury of not having to take these jobs, but obviously someone ended up taking them.
What are some of the JIRA features that you see missing from open source implementations?
You and everyone else can own your modem. I'd rather someone not be able to install an undetectable rootkit on my phone with nothing more than an AT command...
That isn’t what the article says. It says the teacher’s hands were tied because of department policy. Why does the department have that policy? What set of circumstances led to that policy being set and what would be a better policy to both address the set of circumstances and to not hinder teachers?
Only if you live in a non-recourse state.
> Where does it say that and what does that mean? Overthrow is a violent usurpation of power. Getting a government to capitulate is not an overthrow.

It was on their website. Here's the link to the original https://canada-unity.com/wp-content/uploads/2022/01/Combined...? It called for the all elected representatives in disagreement to step down, and for the organizers of the protest to be installed as a ruling committee for the country until such time as they saw fit.

Here is a good quote showing the battiness of this document:

> The matter to be
discussed and agreed upon is this; The Senate of Canada and the Governor General, combined referred
to as the Federal Government are to uphold and enforce all Canadian and International Human Rights
Laws that are clearly laid out in the MOU or “RESIGN their lawful positions of authority Immediately”.

> In the US we had plenty people who during the previous administration made exaggerated claims about what they wanted to achieve as well. I didn't see Gofundme shut down donations or freeze funds.

What aboutism.... I think that money is not free speech in those cases either. But they also weren't actively asking for the government to agree to all of their demands or else step down.

And that is what I mean by overthrow. Their explicit ask as quoted above was that all government reps do what they say or else resign, and that they be given a committee to rule the country.
a study of Signal protocols.
> But for lower level "grind and chug" Maths classes (High-school algebra, intro Calculus, non-proofs-based Linear Algebra, etc) I think there is value in having access to "the answer". Certainly at least for a subset of the problems one works on, IMO.

I think there is a value in introducing the concept of verifying your answers early, as your ability to perform calculations is beyond useless if that isn't something you are thoroughly familiar with.

If you're just doing the calculation but not the verification, you're skipping half the exercise.
https://www.wolframalpha.com/
Whistleblowers and dissidents against the US don't have to fear China, they have to fear lawfare.

Modern intelligence agencies have found their enemies and they are mostly their own citizens.

What would China do? Ask someone to remove Taiwan from a map? Propaganda on Twitter? Sure, you should not share data with them either.
I mean, she said she had taken math classes "up to linear algebra" and she took the course to learn linear algebra so I would guess that it was linear algebra. Google confirms: https://www.math.princeton.edu/undergraduate/placement/MAT20... - Linear Algebra with Applications.
The Netherlands is complying with a European Directive: 2001/23/EC. In the UK, that directive is embodied in the Transfer of Undertakings (Protection of Employment) 2006 (TUPE) regulations.

Basically, the directive prevents businesses sidestepping laws and contracts that protect employees' rights by transferring those employees to another organisation. Seems reasonable to me (if you share my view that employees have rights).
Cellulose nanocrystals (CNCs) have been around for awhile now just like how we have had carbon nanotubes (CNTs) and graphene.

These nanoparticles offer really a interesting strength to weight ratio and a relatively easily modified surface compared to CNTs. The article posted here is misleading due to the relatively high cost of the CNCs to isolate and then use in what looks to be an under cured epoxy resin.

Isolating the CNCs potentially can be done through mechanical means, but I suspect the authors here were using chemical isolation through some sort of acid hydrolysis (they don't say in the abstract).

But overall mixing the CNCs at that weight ratio with an epoxy resin should have yielded 1-3 GPa modulus or higher and the fact that they got 0.66 to me indicates it's under cured and not really that useful.

I actually worked on this stuff when I was in graduate school and we were doing surface modified CNCs with a biobased epoxy resin. We loaded at 1-10 wt% of CNCs and got modulus values between 2-3 GPa with some modest increases in Tg. We were expecting better results, but that's life.

This to me seems like MIT is trying to toot their own horn for some not very interesting results.
That's a great point. They could keep Wordle free as lead gen for their paid games subscription. That's probably more profitable than making Wordle paid.
that's a lot of letters, my firefox gives it to me with just "ne"-enter.
In college they did the same thing, so I pirated the book the teacher was using for the class so I could get the answers to the questions we were being assigned. It helped me learn the material with multiple examples and solutions. I think it should be required to give the solutions to homework; especially, with classes like differential equations and vector calculus.
If Twitter asked for the phone number at registration, they would have fewer signups due to people opting not to complete their registrations. Delaying the ask for a phone number increases the number of accounts they are able to claim.
HPA on GKE Using Back End Latency from an Ingress LB via Stackdriver Externl Mtc
>For example, though we were provided with practice problems to prepare for our exams, we were never given solutions.

Strange. But it also may no longer be true, or not to the extent that it was when this student was enrolled in the course. From the course website:

"Try some old quiz problems for this course, but don’t just read the questions and solutions. Instead see if you can produce correct solutions to most of the problems in the allotted time." https://www.math.princeton.edu/undergraduate/placement/MAT20...

So clearly, now, there are archives of problems w/ solutions that can be reviewed after attempting a solution.

Apart from lack of solutions, I don't see anything "off" here. I don't see other criticisms of the teaching approach. I am also not surprised that one of the best math & physics universities in the world does not cater even its lower level courses towards students for whom they are optional and not part of their intended academic career.

In my school (which was not a top-tier program) courses for majors in those areas were also similarly difficult. The difference was that my Uni also offered a few "Math for non STEM majors" courses to choose from because they still did have requirements for all students in those areas. Basically a survey course of mathematical concepts and how they show themselves in the world & everyday life, along with practical applications of how they may need to use math in any way throughout their lives, things like how basic level probability & statistics will be useful no matter what they end up doing in life. And things like fractals, or the golden ratio, and other concepts along those lines that show up everywhere in life.

The course was designed to answer the question, with concrete examples, "Why should I care about math if I'm barely going to have to use it in life & have a calculator?" I think Princeton simply expects their students to understand the answer to that question without putting their students through the trouble of an entire semester on the topic.*

*Though clearly should address the "no solutions" issue if it has not been fully resolved already.
Gov.uk Service Manual
LGR recently did a Blerb about a floppy disk found in a computer from Lockheed Martin, that had a screen saver based on an old version of YSFlight on it. The screen saver would stage flybys of YSFlight's distinctive, untextured models of fighter jets.
https://www.plorium.com/

I created Plorium to solve a problem I've had personally: finding the "best" way to learn something new (ideally for free too). Right now, it's quite rudimentary, but I hope other people might find value in using this instead of sifting through ad-ridden Google search results.
heh, I actually had this discussion with the professor I an TAing for. The (graduate) class is entirely a class project (it is an ASIC design class), and, if you finish the class project (you can tape out your chip), you get an A.

We have a set of homework assignments to help the students learn the tools (kind of a "hello world" script for the project), and I asked if we just tell them we don't look at them and they are entirely for your benefit. The professor said you if you do that, there will be a decent amount of students who will just not do the assignments and later on complain that they have no idea how to use the tools.

The solution we came up with is to have a set assignment due date so students feel like they have to do them.

Personally, I am surprised that graduate students need that sort of motivation to do the work.
> Instead I took the approach of trying to understand what the mathematical meaning of multiplication is.

There's not much to think about tho, is there? You take 3 boxes of 4 apples each, how many apples is there?

Or were you thinking about groups, rings and fields of integers? I highly doubt it at that age ;)

Ultimately you need to know multiplication tables instinctively to be able to do algebra, so they make you learn them. I don't think there's any way to skip it, just like you can't be good at football without doing a lot of cardio.

For the record - I also hated memorizing multiplication tables and thought I will be a writer because clearly math isn't for me. Fortunately in the next semester we had word problems and I loved that part of math.
This seems to be one of those discoveries that happen to have the potential of changing a lot the world as we know it. Yes, the electronic consumer gagets that we carry around with us may be engineered to consume their battery more efficiently, the electric cars may work more or less with the existing battery technology, but things like electric airplanes just do require this kind of storage capacity improvement in order to reach any practical purpose.
Woman held hostage rescued after not sharing Wordle results
This is a more simple place to get a sample of the typeface: https://beautifulwebtype.com/ibm-plex-sans/
To OP: I was just looking into simple chess puzzles for my son (checkmate in two etc), so this popping up on HN front page is excellent. Many thanks for your work! Would you mind also providing an epub version of it?

Apparently, there's also another booklet on your homepage, "How to Teach Your Child Chess" [1]. Will look into that one as well.

1: https://andytrattner.com/img/pdf/teach-chess.pdf
Calorie restriction trial reveals key factors in extending human health
> Hopefully whoever they outsource to can continue the good work.

Run. Run far away and as fast as you can from this kind of move when you see it.

Outsourcing moves like this are a signal that the leadership views operations as a cost center of script-following monkeys. It won't blow them up, but it will consign a part of their organization to mediocrity, open to competitive attack.

Contrast that with the organizations I've seen who unlock the real value of operations: partners on the front line who feel the trends in their aggregate customer interactions, who are continuously, intricately involved in instrumenting operational data gathering based upon their gut feeling of those trends to drive rationalized product improvements. Software and data analytics makes it all possible, at a scale and granularity never before possible.
For somebody who is already going through therapy, the fight for that "if" is a huge and undeserved struggle (even more so).
All the warm feels of an old IBM Selectric typewriter without the convenient non-proportionality. I passed on this a long time ago.
So… give up and don’t even bother trying, because failure is probable but not certain. Got it.
> The reason we didn't use [Nuclear Fission] to prevent Climate Change is 90% political, not technical

Eh. The physics and proliferation risk are pretty intertwined.

Who's to say we would have been better off with greater historical nuclear weapon proliferation risk but lower climate risk?

We know the path we chose, limited global use of fission power, mostly avoided nuclear weapons proliferation, and did avoid nuclear exchanges. So it's provably a successful (or probably successful) path. Whether an alternative would have gotten the same outcome?
I just had to check this and with a bit of clicking around and searching I think I found most of the areas the article is writing about.

If you really want to, click this link: https://overpass-turbo.eu/s/1fZE
(but be gentle because I don't know how well the overpass APIs scale...)

Here you can see the northernmost turbine in the area, the one also closest to Petries, mentioned in the caption of the top picture:

https://i.imgur.com/8rBjHbp.png

That's here:

http://umap.openstreetmap.fr/en/map/mesure-distance_315118#1...

That's just about 660m away from the next village. That's starting to be uncomfortably close in terms of noise indeed. Way to make sure you'll have justified opposition right there. *sigh*

I'm not very sympathetic to the visual complaints -- car infrastructure already ruins many a landscape, I actually don't mind the turbines -- but the noise argument I agree with; proper distance (adapted to the geography) must be maintained.

Edited to fix overpass link
I found the three people surprised by this news.
https://codingthematrix.com/