skysight-inc/HackerNews huggingface dataset:
Years ago I tried an early adopter's unit. While I was impressed by the "feel", ultimately the lack of color was the deal-breaker for me, as I love using colors in note-taking + PDF annotation. Ended up sticking to my Surface Pro 4 (2015) with the latest Surface Slim Pen. I pretty much only use my Surface the same way as I would use a hypothetical ReMarkable with even only RGBK colors, and considering the Surface is a $1k+ device fully loaded, such a "colored ReMarkable" would be a steal for me. Kinda disappointed it does not exist...

Colors, please!
This linked article actually names "the manufacturer" and the lawyers. Name and shame!
https://www.techdirt.com/articles/20200316/14584244111/softb...
I'm not familiar with the Italian legal system, but I would be surprised if a patent dispute goes before a jury.
Like this:

if (ptr) *ptr = 2;

I sort-of agree with you that 'exploiting' undefined behaviour is a bad thing. But that's what C (and C++) are all about: the undefined behaviour everywhere allows the compiler to make lots of optimizations without having laboriously to prove that they are safe. And those languages are all about speed at the expense of safety.

If you want (more) safety, there are languages for that.
Including C dialects you get via various compiler flags. Eg the Linux kernel uses a special gcc compiler flag to keep all null checks. For this very reason.

See https://people.csail.mit.edu/nickolai/papers/wang-undef-2012... for an overview with examples from the kernel, and lots of cases where the kernel authors opted for a compiler flag to effectively use a more defined dialect of C.
Just ask the NSA they already have all of it, with decades of control data too.
you didn't specify that you meant technical in aerospace. even then, many technical people have the skills to understand other fields just fine, especially to manage. and just to note, bezos also studied physics.
well maybe nano was too small, say micro and yeah I had masks with cartridges in mind
This article falsely claims the device cannot be used by left-handed people. There is a left-handed mode in the settings.
> a country having its own major manufacturing base is not just an economic need but rather also a national security need

It's a strong argument for diverse suppliers, but unless you're a major international player, you don't really have the need, and having redundant manufacturing gets expensive. Just look at people balking at the cost of switching away from Huawei (that's a name I haven't heard for a few weeks).

> the trade war along with serious investment in expanding industrial capacity is likely net good.

But it makes war easier. You know who's not going to war? The US and China. If they did, they'd be economically screwed. Economic interdependence makes war a lot harder.
It’s okay to feel unproductive, and other tips on remote work
I think you are right that there will be a premium on these type masks after all this blows over regardless of supply. Especially in countries that have no domestic production capabilities.
Ask HN: Have there been any layoffs yet due to the virus impact?
It seems comparable to the 1918 Spanish flu, which started in Kansas, except that so far it kills old people almost exclusively, not children or people in their prime. Hopefully it won't mutate.

Nevertheless, it's not a flu.
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Yes, that's all true but I don't quite see what you're disagreeing with.

I agree that it definitely is cheaper for restaurants to cook large numbers of the same meal, and they have many other expenditures which raise the price of your meal. But for a single meal, the question is whether you can cook it for less than the price at an equivalent restaurant. In many cases, this isn't the case unless you're cooking in large quantities and eating the same meal for several sittings. Yes, using seasonal ingredients is a good idea -- but a lot of restaurants also do that, and their groceries are still much cheaper than yours anyway.

For example (in Australia), if you want to make just one portion of Thai curry you need at least $60 worth of ingredients (your protein, chillies, lemongrass, galangal, palm sugar, shrimp paste, fish sauce, peanut oil, coriander, coconut milk, Thai basil, kaffir lime leaves, limes, lychees if that's your thing, and so on). So if you're only making one meal it's seriously not worth it (you can buy a decent Thai curry for a fraction of that price). But if you make 10-12 portions of curry (or you make a large batch of curry paste and use it for different dishes) then it starts to become cheaper per-portion.
Is a Lambda/Cloud Function/etc. really so complicated?
In the US the Federal government or its agents can infringe patents basically at will. The remedy to the patent holder in a case like this would be the cost of the valves.

No special court orders are required. Neither can the infringed sue to stop the US gov (or its contractors) from infringing. If a US state infringes it may be protected by sovereign immunity (assuming it has not waived that protection)

Of course Italian law may be different, but they or the EU probably have similar immunities.
> This is definitely not an introductory level book

I disagree. I used Kleppner and Kolenkow as a freshman, and it has pretty much the same content as this book, and I would consider Kleppner and Kolenkow to be an introductory book. Sure, it's more advanced than more common freshmen books like Halliday and Resnick, but it is still very elementary mechanics. Newton's laws is just the tip of the iceberg that is mechanics. Most advanced books, including upper-division undergraduate books, would at least introduce analytical mechanics, whereas this book doesn't. If you want more advanced treatments of mechanics you should look at Landau and Lifshitz, or Arnold, or Marsden, or even Lanczos (the latter three making moderate to extensive use of Riemannian geometry and can be daunting for that reason alone).

> but the key to this system is in essence that you leave any kind of coordinate projections till the very end

That is not the definition of coordinate invariance, at least as defined in physics. Newton's laws aren't coordinate invariant because the acceleration involves the second derivative of coordinate basis vectors, and that is zero (or constant) only in very few coordinate systems, like Cartesian coordinates for instance. Of course, the statement F = ma still holds true, but becomes very cumbersome to use if, say non-orthogonal coordinate systems are used. As a simple example, try finding the equation of motion of a particle constrained on a smooth surface, say a paraboloid z = x^2 + y^2 in Cartesian coordinates using Newton's laws. Of course, this problem can be solved using Newton's laws by introducing Lagrange multipliers, but that essentially amounts to finding the constraint force. But it would be much better if you could avoid finding the constraint force altogether.

> A vector is the direction and magnitude per sé, devoid of the concept of an origin or any particular unit vectors with which you could represent that vector numerically.

You're right that it is important to distinguish between the geometrical meaning of polar vectors and their representations in a particular coordinate system. It's even more confusing when axial-/pseudo-vectors, e.g., the cross product of two polar vectors, are introduced since now they do depend on the handedness of the coordinate system used. And why should nature care about handedness? (It actually does, but that's a story for another day.) And this is precisely why analytical mechanics, which is an inherently geometrical subject, was invented in the first place! All equations in analytical mechanics are scalar equations and look the same irrespective of the coordinates you use to describe the system.
The license is a little weird, for one. It's also strange because I think it's the only non-GNU dependency in the whole chain. I guess I'd also have expected a GC scheme to be baked into the core Guile source-code instead of relying on an external GC library. It's also not fully portable C code.

I'm sure the library works great - it has a long history, and I'm definitely not knocking it. But it's a little bit of an unexpected dependency for sure.
I run a SaaS company for event organizers (sell tickets, etc)... it's a ghost town. It's kind of nice actually, I get to catch up on work in peace. I've been installing and customizing Datadog, fixing some rare bugs, finally getting around to that feature...

But, some revenue before July would be nice.
The N95s are for everyone expected to have direct exposure to patients with covid19. There’s no “tier” of healthcare professional that is unworthy of protection.
That appears to be about the troll suing about vaccines, not this situation of an manufacturer suing to stop 3d printing.
I get takeout, not delivery. So either I'm handling it or one of my sons is handling it.

I don't like delivery and rarely get food delivered (sometimes in hotels). I've read stories about delivery drivers sampling the food or otherwise not protecting it from germs.

If you use Little Caesar's pizza portal, you pull it out of a warming oven yourself. Since it is in a warming oven, I'm guessing the heat will kill the germs.

If you don't have other procedures in place already to handle other issues, I think Little Caesar's pizza portal is the safest "don't need to know much about germ control" option.

If a place has staff that has bad habits, I stop going.

I use self checkout and similar whenever possible.

I usually pay with a card, not cash. Cash tends to be nasty stuff, especially paper money.

I like my food super fresh. I like Little Caesar's in part because they make the dough fresh in house daily. No other major American pizza chain dies that and I tolerate their pizza better than other major chains. I can eat it more consistently, in part because the dough is fresh.

Spices are medicinal. If you are concerned the food is a threat, order spicy foods or add spices. For pizza, red peppers are usually available in store.

If you have no idea what is safe, skip getting paper napkins and trash all extra condiments and the like immediately. Don't keep them around.

Take the trash out of the house immediately to whatever outside trash can you use. Promptly clean up thoroughly afterwards.

Edit:

I will add that staff at eateries are usually better trained in germ control than staff at most other establishments. Cashiers at other stores are a much bigger hazard in my experience and I do my best to use self checkout whenever possible because cashiers are so awful about doing things like licking their fingers to separate bags. You see that much less often in eateries in my experience.

I bet we could enhance containment by just passing and enforcing strict rules for germ control for all cashiers. They are the absolute bane of my existence.
The quick and dirty Perl deployment system I built at reddit lasted nine years. Five years after I left.

I definitely never intend it to last that long.
Any Western country can do this.
MVS: A flexible Minium Version Selection tool and library based on Go mods
That is fucking rich. You obviously never tried buying something in the USSR. Or when rationing was in effect during WW2. Or medicinal alcohol during prohibition. All government regulated supply resulting in a very expensive secondary market. Black markets thrive under systems other than capitalism where price gouging is the exception rather than the rule.
“...rasterize” — that’s American, rasterise is correct in UK and countries that follow their English spelling.
National emergencies are an exception to state aid rules (and a lot of other rules and laws).
I seriously thought that was a joke listing at first, especially with the erase-by-microwaving picture. I could feel my gears turning as I realized it was legit.
The robot file doesn't want you scraping actual locations.

So it does have a way of accessing the maps over the web. But because they dis-allow locations they don't compete with google for location based queries.

Everyone is wrong or right, depending on if your glass is half full or empty.
Why aren't we naming and shaming the manufacturer? This is immoral.
There is no possible way that you could believe that your interpretation of this data is correct; you're clearly just trolling, but in a way that is likely to get people killed. You're doing the equivalent of SWATting somebody — also "just trolling" until the guns start going off.
Maybe, you know, someone might manage to access the machine that runs the 3D printer. Just accidentally like ...
I googled searched 'egift card for small business owners'. https://giftcardsuite.com/blog/gift-card-suite-faq

Not to sound inconsiderate, but I would suggest writing a blog doing research for people instead of making a tech solution. MVP can use existing tools. You will find that a lot of these small businesses have Square or Toast at their stores. Those are going to use a different service than the one I mentioned above. Its always tempting to build but it could take weeks before you can provide these small businesses with a tech solution and there might not be in the infrastructure to help them use the gift cards.
Pretty bad imo. Tried three objects: Diet Coke can, bottle of cleaning fluid, desktop cactus. Didn’t identify any even remotely close. Was just like a random guess.
This[0] article goes over recommendations for extended use, reuse, and risks. It also has a healthy list of references, some of which are by Fisher et al., the author of the paper you linked.

Most masks have a metal tab bending over the bridge of the nose, as well as metal staples for the elastic bands, which would prevent you from microwaving. Cartridge type filters would work though.

[0]https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3373043/#!po=12...
What solutions did they come up with in China?
I thought dogpatch had some buildings go up, seemed new-ish when I went there. Might all topple into the bay when The Big One hits because it's built on a trash heap, but construction is construction ¯\_(ツ)_/¯
DNS resolution error. Seems blocked at DNS level.
Will they use it and risk the public asking how they came to know so much, as if by magic?

I'm hoping after this is all over perhaps the public might finally be in a mood more conducive to sitting down and discussing things in a reasonable manner, without the involvement of government and their corporate influence, and ideally on a platform with minimum censorship, and has a solution for dealing with ideological issues that have ruined so much of the rest of social media.
NSTA teachers have been given some advice

http://blogs.edweek.org/teachers/teaching_now/2020/03/teache...

One tip was "Teachers are using the hashtag #virtualschool on Twitter to share resources."

Other tips from https://www.edutopia.org/article/what-teachers-china-have-le... were

-- Start by continuing to use lessons that are clear and simple, and don’t introduce new programs for teachers and students to learn if you can help it.

-- When building digital lessons, it’s helpful to reduce the number of external links on your online learning platform. For example, if you want students to read an article, it’s safer to upload a PDF (to OneDrive or GoogleDrive), rather than a link to an external site that may or may not work.

-- Many of our classes at school intentionally used workbooks and paper-based tasks instead of laptops to reduce students’ screen time.
Nobody has mentioned how much an entire ventilator costs. Best I can find is between $5-50k usd. For example a Puritan Bennett 980 quoted as around $50k (by the manufacturer) with a $2k a year service contract.

https://www.medtronic.com/covidien/en-gb/products/mechanical...

So why is a valve $10k? Note that a replacement battery for the above ventilator costs < $1k.

Is the valve a disposable part (at 20% cost of the whole unit?) Is it some special valve that is the core IP (that other medical valves can't replace?) Is it made from some special material? Do they have to make each one from scratch? Does individual certification cost a fortune (and maybe this is a fixed cost regardless of what you're testing)? How much does a similar replacement valve cost for a similar ventilator?

Bear in mind that $10k implies a $3k cost to the company, at a typical hardware engineering markup.

I don't think we can handwave "Rnd" or some mystical "compliance" cost without knowing more details.

Seems like a valve for anaesthesiology is a Class II medical device, which may be a start?

https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFR...
>Do we treat the impoverished old like their lives don't matter as much, let them die because they happen to be in the same arbitrary statistical grouping as other, unrelated old people you feel could have sacrificed more?

Something used in public policy is Quality Adjusted Life Years. An 80 years has a much smaller expected lifespan than a 10 year old, so something that reduces the 80 year old's expected lifespan by e.g. 2 years could be compared to the effect that poverty or environmental damage has on the 70+ expected years of the 10 year old's life.

>Some of those are children, some young, more middle-aged, and most old, although we are currently not sure how the statistics pan out for middle-aged and below when hospitals are severely overrun.

We have this from the Wuhan numbers, where hospital beds were completely insufficient at least for the first month.
Does it not work with standard NFC libraries?
The masks filter pollution about as effectively after prolonged use as when they're new. The problem for medical use is contamination with germs.
Mapping backspace to right command and swapping ';' and RET have been a complete game changer for me.

Most people don't think about the cost the extra 300 ms it takes to hit the regular backspace key, but given the frequency that you use it, it really adds up. Ditto for RET. Try it. And read this XKCD comic: https://xkcd.com/1205/
By witholding the supply of valves the management of are conspiring to murder. Issue arrest warrants for the entire management. When lives are at stake, playing hardball with insatiable capitalists might do the trick.
Ginkgo Bioworks commits $25M of free access for partner Covid-19 projects
Why wouldn't you just run the screen sharing software from inside the VM?
Part of that has to be a lack of competition. Captive market large enough to feed this company, small enough to avoid competition.
We're better off having the government backstop this--pay the rent, pay unemployment to the employees, and have society pay at the end of the day. The tricky part is getting money where it's needed. The Fed is doing what it can, but that's basically keeping banks open.
EInk displays only use power when they're changing what's on the screen, right? They work by giving a static charge to a bubble full of ink, and that charge should remain for a while, even if the screen loses power. So I don't see why screensavers are necessary.
> It's not the same result. Ugly/fat/poor people can make engaging content and that will be recommended on Instagram.

That's not what happens to me. Instagram consistently pushes model-type people to me even though I hardly ever interact with those types.
Surgical masks are not shown to have any ability to prevent healthy people from getting sick with covid-19.

https://www.health.gov.au/resources/publications/coronavirus...
Thanks. Will keep it in mind next time.
It takes away from the point when it's untrue. Web Components is a standard. Multiple implementations exist. They don't have one and are sore.
Thanks for sharing the YouTube channel! My daughter has been really into watching rocket launches and we have run out of SpaceX videos.
I am looking at moving my programming course online due to COVID-19. Any suggestions on a low cost touch enabled tablet for recording lecture sessions. I am looking at creating content like khan academy classes.
Apple store on Tmall delists 11-inch iPad Pro, adding evidence new iPad coming
Not representative of medical equipment manufacture in China (I trust), but an interesting look nonetheless into typical manufacturing process and it's utter lack of OSHA and environmental controls:

https://youtu.be/83GDV0xsTTs?t=545
No, I'm not "setting a false dichotomy" at all, actually. I could be wrong, but I'd bet some amount of money that less than 1 in 10 Americans who have an opinion about "Big Tech" (in the sense that if you say those words to them, they will provide an opinion) have any meaningful knowledge of these less-visible players outside of the services they provide directly to consumers.

("Oh, Verizon? That's my phone company! Yeah, their customer service is pretty bad but it's cheaper than T-Mobile, so...")

That's the point of my comment. It may be a dichotomy, but from my observations of "regular people" it's certainly not a false one. IMO your viewpoint here is a very tech-centric one, and doesn't accurately represent "most people".
People were required by law to wear (mostly homemade; the main kind available) masks during the Spanish Flu. The link below gives an account of someone being shot by a public health officer for refusing to wear one. People took it very seriously back then as a way of preventing the spread, and it's not a bad idea for now.

https://blog.genealogybank.com/the-history-of-the-great-1918...
China is down to ~8000 COVID patients, so that number is actually fine. It's supplying the rest of the world that's the problem.

http://ncov.dxy.cn/ncovh5/view/pneumonia
can't you use cyclonic filtering ? ala recent vacuum cleaner
Well two things come to mind here:

- People can learn from Rome's mistakes.

- Rome did at least some farming.

- Rome is no more.
According to a proper philosophy there is no way to know. Only to have socially constructed consensus (hello, mr.Khun)

Let me remind you that abstract concepts like dimensions, does not exist outside human minds.

The question itself contain a type error: the concept is not applicable.
You could. It depends what you're using. If it has a Linux client then that might work, but using the window of VM going into OBS you can then use green screens and start doing some pretty pro looking stuff.
Please stop linking to Techdirt. That is not a news source. TD is a self-proclaimed rumormill.
“The risk of getting infected from food delivery is pretty low but not zero,” says Daniel Kuritzkes, chief of the division of infectious diseases at Brigham and Women’s Hospital in Boston.

source: https://www.wsj.com/articles/what-are-the-risks-of-food-and-...
I had considered the metal parts of the mask to be a potential problem. In the worst case scenario it should be relatively simple for mask owners to remove the metal tab from the nose and the staples holding the elastic bands before microwaving.

Once they are done in the microwave the bands could be stapled in place with your ordinary stapler and the band reattached with hot glue. Those who have a needle and thread could also stitch a sleeve onto the nose piece that is open at one end and just reinsert the metal nose piece once it is out of the microwave. The thin metal should withstand several bend cycles before needing to be replaced and it can be replaced with any thin aluminum strip which one could obtain from lots of places around the house or at the hardware store.

The bands and straps could be washed in ordinary soap to sterilize them before reuse.

Just thinking outside the box here. What do you think?
I’m working with a group on a version of this now that allows customers to request a gift card from any local business in the US. I could use some help a pm and a full stack dev with ecomm / payments experience. Ping me if interested. Michaelpatrickmcc@gmail.com