skysight-inc/HackerNews huggingface dataset:
> By the same reasoning, one could build a piston engined supersonic aircraft...

Now that's a thought provoking engineering problem!
Assume a supersonic propeller is required.
Using the Thunderscreech as a baseline, which admittedly didn't quit go supersonic, but it gets us close.
Its powerplant produced nearly 6,000 horsepower.
That is certainly doable with a piston engine, top fuel dragster engines produce roughly 10,000 horsepower. For about ten seconds.

If this plane burned nitromethane, it wouldn't even need much atmospheric oxygen, nitromethane required roughly one tenth the amount of oxygen per mass of jet fuel. Of course, this means it has to carry a lot more fuel

https://en.wikipedia.org/wiki/Republic_XF-84H_Thunderscreech...

https://en.wikipedia.org/wiki/Top_Fuel#Performance
There are two great app that use OSM data that I see a lot of people use.

* Maps.me - I used it a lot when travelling last year in Southeast Asia. And I noticed many other travellers were using it too. It was basically expected that people use Maps.me there.
I guess it helps that it's also integrated with booking.com data so you have a lot of hostels there if you are looking for a place to stay in new cit. However it's a shame that it's not actual POI data from OSM. I had situations where there were two hostels on map, one from OSM and one from booking.com. booking.com was usually wrong by couple of meters, I guess because only owner with booking.com accound could change it...

* Mapy.cz - I mostly dumped masp.me for this app (it has good website too https://en.mapy.cz/). This app is also using OSM data, but shows information more helpful for tourist/biker. Bike paths are superbly displayed, hiking trails often have proper colors (I still need to check if it's OSM tag's data). I highly recommend it.

I tried OSMAnd and IMO this is really mainly for "OSM enthusiasts", not for causal "normal" users that just want to have good map and know where to walk or bike to.
How does TAI relate to Epoch time?

More and more I use Epoch time for most things just because of how convenient it is.

I rarely need sub-second granularity, and it's just one number, so it's sortable, math-able, etc.

Then whoever is doing the display can convert it any way they want to.
These medications - zolpidem and adderall were easy to get off of. It was maybe a month of discomfort and then things started to get back to normal. They were helpful with getting my life back on track. I stopped taking the zolpidem when the retiring psychiatrist ignored a refill request (that I made during business hours with advanced notice). I decided from there that I wasn't going to be dependent on medication to fall asleep.

The new psychiatrist was how you might expect any psychiatrist to be - fake sincerity. So yes, there was a sense of "oh no we don't want you to stop cold turkey ;) why don't you take this new medication." The recommendation to change to a new medication manufactured by a major donor to the university was a red flag that made me decide to stop altogether.
They also didn't investigate reports of John McClane (of the Die Hard movie fame) tossing a cigarette into the warehouse, backwards while walking away, a few minutes before the explosion... I'm unsatisfied that they didn't entertain my conspiracy theory! /s

If you actually informed yourself properly about this explosion (instead of reading -- I'm going to assume -- conspiracy websites), why the whole thing was sitting there for so long is pretty clear, and is actually briefly covered in the video (6:05): no one in the government nor military felt responsible nor did they want to take responsibility, having a fight using letters instead of recognizing the danger and acting to fix it. As to the source/why no one wanted it back, that's also been covered in the media.
thanks. They just put the pricing list. It wasn't there before. For sure, it is very great they put it up.
The YT deal is that they take a cut of (ad) revenue to fund storage, cpu, bandwidth costs and profit in exchange for hosting the content.

Many of these content providers disabled the feature effectively making YT operate at a loss to host their video while continuing to use the platform.

I already have shown you other examples of these types of attempts which also didn't fly. You can't sell a TV in Walmart for 0.99$ and then have a hidden checque for 900$ in the box so you avoid giving Walmart their margin for the sale.
As soon as I heard a second cable had broken, I knew they would shut it down.
I'll settle for a few major powers.
> I honestly see a successful AMP as the end of the web as we know it--there's no way for us to know if the content isn't censored by Google.

Is there any way to tell.that the content of an HTML page isn't censored by the hosting provider used by the page owner, or by the browser vendor?

Doesn't seem AMP adds anything to that. Sure, you can't know, in theory, that the host (which may not be Google, Microsoft and others run AMP hosts) has censored it, but what does that actually change vs. HTML?
API data privacy and governance in the healthcare digital transformation
Brent’s class is a great place to start learning Haskell. I actually took the first iteration of the class many years ago and Brent was a great teacher.
I took a course taught by a nice lady with a PhD in pure mathematics, no English skills, and handwriting that made differentiating between mu, u, and w very difficult. It was not a good time.
When I read "supersonic electric flight", I assumed something propeller-less, like this - https://news.mit.edu/2018/first-ionic-wind-plane-no-moving-p... .
As the article explains, it has been deemed to be unsafe to repair.
What's probably missing in that sentence is "...within an acceptable budget."
I wish they have used a different word than `const` for "not necessarily constant but it can be called at compile time". This is bound to confuse newcomers. Note this is unrelated to this release but I just realized how confusing it could be.
In the Intro-to-C class I TA'd, we dedicated several minutes in lab to instructing students on how to properly draw an ampersand (&) character, and the other ways of drawing it so potentially confusing (especially since a + means something completely different).

Personally, the +/t handwriting issue has never been an issue for me: make sure you get a good tail on the t, and it's pretty easy to distinguish from a +. It's the x/× distinction that was always the most painful to distinguish for me.
Serious question, what's the risk of losing your Gmail account?
GitHub archives open-source ‘greatest hits’ in four locations around the world
I loved seeing Arecibo when I last visited PR. It is sad to see it dismantled -- I wonder what plans, if any, there are to replace its capabilities.
The estate as the copyright holder (in most cases) can pull down the videos if they like.

YouTube is not obligated to host and serve content for free forever.

As many other big tech companies they have a very strong position in the market (edging into monopoly / duopoly territory), which essentially prevent competitors with different business plans to be successful.

To me this sounds like the market is broken and warrants a critical investigation.
The next two releases will be bigger.

The 1.49 release will have a new tier 1 target (aarch64-unknown-linux-gnu) as well as apple silicon as a tier 2 target. The 1.50 release will have min const generics as well as stable backtraces.

As the releases are every 6 weeks, an individual one might seem small. But over time they add up.

Note though that I do consider the rustdoc improvements to be major. Previously I wasn't bothering with directly linking to referenced items because you had to figure out html names. Now it's very easy and I plan to write more links.
PyPI, and many of these projects, predate semver. If you assume PyPI is universally semver, that's a mistake on your end
Would love to chat -- I'll shoot you an email. :)
Did the URL get changed? Why is everyone talking about AMP?

EDIT: Now the link has been changed back so this comment makes me look stupid. https://news.ycombinator.com/item?id=25151764
You can use Kiwi browser of phone. It's basically Chrome + dark mode + extensions(so ublock). Nothing makes it through.
I agree that your example isn’t very convincing, for an additional reason. You can treat 2x as a function, or you can treat it as an expression, where x is its own special kind of thing: a symbol.

With how the notation is typically used, it’s at least closer to my mental model.

Treating the expression as a function under substitution is one way to look at it, but not the only way.
'No Intrusive interstitials' - I hope this factor carries increasing weight, many websites are pretty horrible experiences on first visit nowdays.
Monthly deaths per million – 1851 to 2020 (Sweden)
The downside there would be explaining how that new word maps to Rust's concept of const, unless you'd change all of that too.
This is the revolution we needed in a technology landscape that promotes waste (x86, Electron), however belittled by the haters. It's real and changes everything.
This is among the best video I watched recently. Very well done. Congrats to everyone involved in this project.
I mean old games were designed to be addicting too, so that people would stand in the arcade and feed the machine quarters for hours. OTOH, those games were a lot faster paced/etc. I don't even think its possible to have the kind of super fast arcade level games on a touchscreen.

Which is maybe part of the problem. Old games had a joystick and two buttons. They were easy to learn, hard to master.
Maybe they could use a Peertube instance
or LBRY.
Exploring the Office 365 Substrate (2019)
Also (x+1)(x-1) = xx -1 helps if you know the squares
1x3 = 2x2-1,
2x4 = 3x3-1,
3x5 = 4x4-1,
4x6 = 5x5-1,
5x7 = 6x6-1,
6x8 = 7x7-1,
7x9 = 8x8-1,
...
Arecibo Radio Telescope to Be Decomissioned Due to Damage
Nikola soars as investors mistake month-old GM website for new
Grizzled sysadmin / desktop admin perspective here: I can't easily remotely interrogate a user's Firefox process, as you describe, like I can w/ the OS by remotely running "dig", "nslookup", etc, on the user's computer.

With the Firefox model I have to interrupt the user and ask them to become an active part of the troubleshooting process. I'd prefer fixing the problem "behind the scenes" without engaging the user, except to let them know when the problem is fixed. I consider it vastly more "user friendly" to enable support personnel to solve problems w/o distracting the user. I don't think very many developers consider that use case.

Tools that enable "concierge" support for VIPs, executives, Customers who will pay more to be doted-upon, etc, is a valuable attribute in software to me. Moving toward user self-service is laudable, but not if it's at the expense of dedicate support personnel's capabilities. In my experience, at least, the satisfaction and praise users express from having issues resolved without bothering them has been significant.
Thanks; I followed a broken link on the About page. Just sent them an email about it.
I've always found crate documentation to be the worse thing about Rust. Because it auto-generates some documentation, people just assume that's good enough, and you end up with tonnes of crates that seemingly only have a list of functions and structs and what arguments they take, but very little information about how you're supposed to plug everything together.
I mean, would investing in FB, Shopify, Tesla, etc IPOs been a dumb investment?
BuT tHeY’Re a PrIVaTe company... humanity needs rule laws to govern entities that have never existed before.
Coronavirus Immunity May Last Years, Possibly Even Decades, Study Suggests
This is just as true for Facebook or Google or any messaging system. There is nothing special about Apple in this regard. It’s just a feature of current messaging technologies.

I stopped using Facebook earlier this year, and I am missing out on a bunch of social groups the contain people I know in real life.

What we need to do is build technology that doesn’t these downsides.
Does that make it not get indexed, or not get included in weights?
Is the same money (replacement cost) better spent on a space-based solution?
I'd say the bigger concern is long term, will Apple even ALLOW you to even run non-App store software? E.g. FOSS

On iOS they don't.

And with this new direction of macOS & ARM, it's not out of the question the same will happen on the desktop.

EDIT: why the downvotes? Seriously - what's wrong with what I said ... I'm genuinely curious.
Messaging app Go SMS Pro exposed millions of users’ private photos and files
I'm guessing you haven't actually used it. It's a fantastic fit for React or similar frameworks. There's honestly nothing spaghetti messy or Goldbergian about it. It's just generating a stylesheet.

I absolutely do have a .btn class in my Tailwind projects, that's a given. For consistency, it's built from the utility classes that Tailwind provides, but buttons are kind of a pathological case in many ways, they're really not how you should evaluate a framework. When I put two buttons next to each other, I don't make a new class for one of the to get some spacing, I just slap a "ml-4" on one of them, and that matches all my other spacings.

But the real magic is when I'm building up my mid-level components, I don't have to try to come up with names or abstractions for the CSS, I just make things look and work right, and as I notice patterns I can break them out into semantic classes as needed. It's a great way to work and the results have been good for me.

In my mind, the real mess is a bunch of poorly named CSS classes that end up being specific to the place where they're used. Specificity battles, 40 character BEM selectors, mismatched margins sizes and randomized colour palettes. Setting up a Tailwind configuration is a very ergonomic way of turning your basic design system into CSS.
I'm of two minds about this. One the one hand I certainly tend towards a preservationist mindset and as the sibling comment notes, we don't really know what we should save for various reasons. The guy who is responsible for having saved a bunch of Usenet archives made a comment to the effect of: "I didn't realize that what we really should have prioritized was discussions about social issues, culture, etc.--not bug fixes for a long obsolete version of SunOS."

OTOH, I'm kind of glad that nothing I wrote that wasn't filtered by an editor from before maybe age 30 or so exists online. (And even the filtered stuff you probably would need to know where to look.)
I don't disagree. However, all of the points I made apply double for management — particularly the point about status in the office hierarchy. Management is often the most reluctant to participate in exchange; furthermore, the conversations you describe don't happen because management doesn't push them.

In my experience advocating for such initiatives — and I have done so across multiple organizations throughout my decades in the workforce, and not just at tech companies — it is not so much resistance from below as from above that stymies them.
Hmm. AlternativeTo has a list[0]. Not a great list, but a list.

Looking at that, possibly MediaGoblin could work.

Alternately, something like Jellyfin may work, but that's a little bit of a push.

[0] https://alternativeto.net/software/youtube/?platform=self-ho...
I have been using DDG full time for a month or so now but they really need to work on making their search results more readable. I might use a browser plug-in to customize the styling myself when I get some free time.
Unfortunately, most of my YouTube viewing is not recreational/ entertainment. I use YouTube primarily for DIY videos, Home Building, and other similar educational/ Howto videos. I just don't see a lot of alternatives out there so I'm kind of stuck with YouTube.

Preroll ads are the worst because quality varies so widely I end up wading through multiple ads for crappy videos.

Is there a good resource for how-tos out there for a fee?
> Samsung and the ads they force on you after you paid thousands on their TVs

TV manufacturers were forced to add AD revenue because they reduced their purchase price to levels that were less than sustainable so there is a trade off being made there.

https://www.in2013dollars.com/Televisions/price-inflation
Id argue its their job to index the internet, not dictate how people build their webpages to determine the order they are displayed. They want their crawler to be faster and to capture market share/screen time.
Is this a symbol of the degradation of human intellectual capability in the 21st century?
Copying multiline text into slack always works for me. Copying multiline text out of slack sometimes fails.
> It only fits the startup model if you know what you’re doing, which is in pretty short supply. You can definitely create a shockingly good lab for ~3000 though.

Agreed. Biohacking budgets seldom ever go beyond 10k in my experience, I've spent more than that by the time I was 18 on my car and parts. That's not to say that isn't a lot of money, and mostly discretionary, but its entirely do-able.

So much stuff can be bought second hand now, or you can do what some Biohackers did and go dumpster diving at University campuses for broken or old lab equipment--Josiah did that to start the ODIN before going to NASA.

This requires you either to be in school and know the days they do it, usually after the finals in the Spring on my campus, or pay someone to find out. Either way, its doable: I picked up a microscope and a few cracked magnetic stirring hotplates and a random box of misc glassware and metal stands my Junior year when I swore I was going to turn my living room into a wet-lab once I made enough to buy an old BD flow cytometer after graduation.

Those plans were soon dashed when I realized I could just go to the lab of the The Scripps Research Institute after I did my training there my senior year. I think I just ended up giving it all away on Craigslists as a starter 'Lab kit' years later and it was gone pretty fast.
Haha that's fun, it is a ridiculous reality that casinos and negative-expected value games are regulated only at the state-level while the Federal Government pretends those money games don't exist and that it needs to take a paternal relationship over players of positive-expected value games like assets and securities.

I feel like someone well funded and clever could find the right combination of judges to correct this reality. Make it a real free for all.
Teleport (YC S15) is looking for a recruiting manager
Oh wow, I was wondering why everyone was talking about AMP. That is a really dramatic change.
> people just assume that's good enough

really? I've found that in general the same number of people bother to go deep into explaining compared to e.g. JS, and always having rustdoc for the people that don't is far better than reading the source or TypeScript definitions.
I think it's just some kernel command-line switches. Like `mitigations=off`.
shrug

These were the prices before YouTube really became big and were still the prices after they became big.

I've worked in video streamin industry in years and I haven't seen YouTube be the fault of the high costs. It mostly comes from the fact that videos are large, they need a lot of CPU power to convert and need a lot of bandwidth to transmit to clients.
How the Seahawks are using an AWS data lake to improve their game
I remember as a child some kids' show taking us down to the dish as we cruise around and under the huge thing in the jungle. Thought it was one of the coolest things I had ever seen. I can't believe this legend is all going to be discarded.
Because the article is (partly) about AMP.
it wouldn't be the same money
I did pretty much a similar thing years ago, but went self-hosted. It took a year or so including the transition phase.

1. Set up incoming E-mail forwarding from mydomain.org to Gmail. Exim will do this, probably all popular mail packages support forwarding well.

2. Start sending E-mail (from Gmail's interface) as me@mydomain.org, and tell your friends to use that one.

2.5. (optional) Get your local mail client to work with Gmail's IMAP and SMTP.

3. Take a deep breath and change that MX record.

4. Block out one or two evenings, pour yourself some Scotch, and go through each and every online account you have, changing your E-mail address. A password manager helps with this because it's also the definitive list of every online account you have. While you're at it, you might want to use me+company@mydomain.com so you can tell which E-mails come from which company, and know who is selling your E-mail address around.

5. Wait until people switch over and the vast majority of your E-mail is going to me@mydomain.org instead of your Gmail address. For me this took a year or so.

6. In the mean time set up locally hosted E-mail at mydomain.org. In my case I use exim4+dovecot+spamassassin. Don't forget to set up SPF and DKIM correctly.

7. Pick a time in your life when you don't expect to be getting urgent or important E-mail, like you're not buying a house or applying for jobs. Take a deep breath, and apply the exim config that changes you from forwarding to self-hosting.

8. Ask all your friends to send you some test E-mails, preferably from different providers. Make sure you can at least deliver mail from gmail, yahoo, comcast, verizon, etc. Send mails to them and make sure they're being delivered.

9. Assuming no problems in 7, pat yourself on the back for being part of the solution rather than the problem.

10. Periodically keep your eye out for trouble. Audit your logs every so often to make sure you're not having trouble sending or receiving. I had to change my IPv6 at one point because comcast decided mine belonged to a spammer, but other than that it's been smooth sailing.

11. Decide whether or not to keep your Gmail account. I kept mine, but it pretty much only gets spam now. Maybe once or twice a year I get a legit one there from someone I forgot to tell I changed my address. I keep an eye on my Gmail to find out when there are hot singles in my area or that there's a new sure fire diet pill that sheds fat instantly.
I’ve noticed stories critical of FAANG often get flagged or otherwise mucked with.

Not sure if it’s astroturfing, or what. This change is particularly egregious.
Fuuuuuuuck.

I understand the decision to dismantle the failing structure which is currently unsafe and tricky to repair.

But might a new one be built in its place? How can we push for that?
I would agree, but qualify by saying that not all the blame lies with the student. Precisely because mathematics is so interconnected, beginning students really do require an experienced guide to navigate through the tangled web of concepts.

A particularly bad or lazy professor can be worse than no professor at all.
Partnering with CodePath and ColorStack to support future technical founders
A gentle introduction to Geometric Algebra [video]