skysight-inc/HackerNews huggingface dataset:
I don't think you quite understand what I mean.

You said it yourself, the interceptor is interested in knowing where the missile will be in X seconds.

Let us think about this mathematically. Let us use the following coordinate space - the missile travels along the X axis.

The missile may accelerate on the ZX plane by, say, 20Gs.

This means that after x seconds the missile may be in a circle 98m * x^2 in radius = 20G * 9.8m/Gs * 1/2 * t^2 which is the basic kinematic equation.

So if we want to answer the question, how much uncertainty is there in where the missile will be in X seconds, the correct metric is actually lateral G force, not turning radius.

The interceptor missile cannot simply have a higher lateral G than the target and be assured it will hit it. Indeed, the Python 5 missile you mentioned wouldn't be able to hit the hypersonic missile.

Why? It's too slow. The Python 5 will hit Mach 4 shortly after launch and impact around Mach 2 or so. Meanwhile the hypersonic missile will maintain Mach 7+ throughout.

This means that despite higher lateral G forces, the Python simply will not have the energy to maneuver with the hypersonic missile. Consider the following scenario, as an example that is simple to understand. The Python missile, going at Mach 3, will go towards where the missile seems to be going. This is hugely problematic for the Python 5, it means that every movement the hypersonic missile does will be amplified by the pursuant missile as it has to "get in the way". So if the missile, 150km away, increases pitch by 4 degrees, the Python 5 might have to immediately pitch up almost 30 degrees, bleeding of a lot of energy.

Then if the hypersonic missile pitches down to -4 degrees, it will seem to impact now a full 13km lower. Now the Python, already slowed down, has to maneuver down 50 degrees!

So because of the speed difference, the interceptor now has to engage much more G force than the hypersonic missile, because it has to position itself in the path of the hypersonic missile due to its speed being too low to pursue it.

This is made even worse by the fact that this very maneuvering is going to reduce the speed of the interceptor, which can't make it back up because it doesn't have an air breathing engine!

This is the reason why the Radar Warning Receiver made the early long distance missiles ineffective. Despite in this case the missiles being faster than the planes and despite being able to pull off more Gs, their inability to regenerate kinetic energy meant that fighter could bait them into losing their energy, reducing their speed and shaking them off.

Now the same problem repeats itself, except that the hypersonic missile is now faster than the interceptor and the maneuvrability gap is much lower.

That's all to say, if you want to evade intercepting missiles, what matters is : lateral G forces, speed, and energy regeneration. Nothing else!
Did the Soviets make any major attempt for Mars? I thought that after the moon, they were mostly focused on Venus during the space race. Their ~28 Venus missions were no joke, with up to 5300 kg payloads for lander + orbiter, comparable to the Zhurong lander + orbiter payload of 5000 kg. Perhaps someone more skilled at rocket science than me can comment on the relative difficulty of moving mass to Mars vs Venus. From the table in Wikipedia's delta-v article they look about the same.

That said, congratulations to China for this achievement, and the more rovers we have on mars, the more science we learn. I hope China also has a new space telescope on their to-do list.
Long story short, terrible idea unless you're in a position like coinbase.

The article is from a high level engineering standpoint about productivity and trying to be efficient. The thing the article doesn't mention is the best react native developer also is an expert in native mobile development. It is crazy hard finding these people.

All techno fluff aside, any component mobile developer knows once you have a solid foundation it is super easy to build on core features. Given how frequently aplkenabd google breaks things which makes reactive native upgrades a mega PITA, the only proper use at a technical level is to utilize the code at a framework level. React native is still on its knees to cocoapods, which as of now is virtually nonpreferred for future projects.

Sorry for the rant, I just think A.:) Coinbase made the wrong decision in the long run because they limited themselves on a technologist that's infamously know to not favor solid user experiences

B:) they underestimated the specific qualifications they need to get the people that are grounded enough to know native mobile development and its capabilities, abs the react native component. Even though they are coinbase the article acts like it doesn't matter.
When Expo works like it should it's like the best dev experience ever. Supporting all React Native 3rd party components without ejecting and ditching the Expo app will be a huge step forward.
As a programmer, the takeaway for me is that the exceptional treatment of this database request should be logged somewhere. Here, the EXPLAIN response would have been a good place.
No more open office plans? Managers are not rational enough, sorry.
You stand to gain more by people modernizing their existing code -- even, compiling their C code with a C++ compiler, and then improving that, as happened with excellent results in gcc and gdb -- than by hoping a vanishing few will switch over to a wholly new, unfamiliar language.

Liiterally millions of times more benefit.
The X-15 was able to sustain G forces in excess of 15Gs. The limit was that its chassis would break apart.

Maneuvrability works very differently for high-trust, vectored, supersonic vehicles. That's why A2A missiles can pull of 50Gs despite very low L/D ratio, speed helps a lot.

Hypersonic flight magnifies this even further. I mean, look at the X15, it was able to do more than 15Gs despite having lower relative thrust and non-vectored engines, at higher altitudes!
What were the issues with Expo and why haven't you ejected to vanilla RN?
I believe what you say about NativeScript but there’s not enough momentum in that solution. Learning NativeScript will give you access to a way smaller pool of projects or companies you can work for.

I think most developers would prioritize employability + traction/community/documention. There’s not even a comparison there. React Native is the superior solution.
Not to mention it takes years to build these fabs. Do they think the automotive industry will use the same chips forever?
I heard their algorithm is quantized — first your video is “piloted” with a small set of people that are guaranteed to see it.

Then, if it passes a metric, it graduates to a bigger pool of people.

And then one more level.
Which, unfortunately, is full of folks who don’t understand that the image disappears when no ones hosting it. People call the IPFS the “perma-web” and expect their content to be hosted in perpetuity for free.

Imaging paying for artwork and not downloading a copy because you think it’s archived. Poor art buyers.
I think it's often more interesting which values you don't follow or where you take shortcuts.

Imagine a new coffee down the street, they have cheap coffee, lot's of choice, all organic, lot's of space, fancy interior, central location, pay their workers well.. and so on.
Of course that would never work, it would be too expensive. If all it took is a perfect solution for everything, everybody would do it! That is easy.

So you need to get strategic where to cut corners. That's why it's important to know your market. Because some will want organic coffee, but don't care if it's to go. If you serve organic coffee, but have a fancy interior, you'll be at a disadvantage, because you're spending money on the interior but the client doesn't care.

I think that is also why engineers often make bad entrepreneurs. At least I was in constant disagreement with one of my engineering co founders. He always wanted the perfect solution to everything, that is what a great engineer makes. But that doesn't sell.

Your landing page shows me that you don't care about your clients. There is no design, no information, no product.. just "values" which center around yourself.
Its amazing! Must be a lot of work.
That is such a bizzare take.

Valve's stance on hackers won't change the fact they exist and are out there doing their thing. Valve's stance can now be the deciding factor between exploits being disclosed to them for a reward, or sold on black markets as cheats.

If you don't want people "breaking your hard work", don't release software. However, being on hackerone can help alleviate the negatives.
docs.new creates a new google document
Mac OS removed supixel rendering AFAIK
There is an old Greek myth that made the same observation about age and mobility. It's not exactly a new idea. :)

A nymph asked for immortality for her lover, but forgot to also ask that he remain young. So he just got older and older, until he shrank so far that he transformed into a cricket.
Chinese-style capitalism has always been more refined (at least on the surface) than the blatantly stupid US-style capitalism.
Yes, dashboards are underrated by those who haven't used them.

The data analysis tools did cause problems at one company I worked at. They had a very locked down JIRA install and management were in thrall to the burn-down chart. If you got behind you were hauled over the coals.

The burndown chart only considered the rate tickets were closed. So developers started creating extra tickets at the start of a project, so that when they got behind on a larger issue they could closed off some of the small tickets and the chart would stay on track.

Management never spotted.
Well, they don't print the USD. But you're right, perhaps a better analogy for what people mean is a central bank trying to maintain a currency peg. Which also often ends badly...
none of the issues i described are different now. RN on iOS still uses JavaScriptCore by default, Android uses Hermes, and it still uses V8 if debugging, meaning it's possible you'll have some super weird edge case bugs. in Airbnb's situation i believe they said it was almost impossible to pinpoint the issue due to the differences in these engines. it's unlikely, but still an unavoidable thing that could be a serious roadblock
I never understood the difference between ipfs hash addresses and a magnet link hash address.

I guess the magnet link still has to ask a tracking server that knows some peer addresses already right? Whereas an ipfs node can dive into the DHT and start searching for a peer?
I don't know how you have it configured, but I have to say, we dont have these problems.
You don’t need to do it every time; you only need do it once per application. It’s a privacy feature that prevents an application being able to record your screen (or use your camera/microphone) without your explicit knowledge and permission.

And frankly Zoom just works, and works well. What advantage would using a random site with an unheard of record possibly give you?
China Daily has a nice animation of the landing process.[1]
So far, though, no live video.

[1] http://global.chinadaily.com.cn/a/202105/15/WS609f18aaa31024...
@dcminter out of curiosity what was the reason to submit this?
Programming in Lisp or Forth is such fun since you can stretch the programming language itself. For me, the reflective approach keeps the fun in programming.
If they mislead you, sure it's dishonest. But if they're just better at being found, they have every right to charge for that. It happens all the time in the private sector. The world is full of resellers. It only feels like a scam because we imagine that it's not fair to pay for advertising. In my country, there used to be a little industry of businesses that would collect tax refunds for you and take a cut. You could just fill in the forms yourself, or you could stop at a kiosk and pay them do the tedious paperwork. Not saying that's OK when they pretend they actually are the government though.
With the stolen research from many countries.

At this point, I don't care what they steal, with the exception of military related research.

(And no--I have no citation. I have just read about to many Chinese citizens being arrested on American soil for espionage, and theft of trade secrets. Remember the guy collecting genetically modified seeds in the midwest? I could care less about Monsanto though. I do care about NASA secrets.)
TikTok reminds me of mid-2000s Internet vibes. But also, that could be because the algorithm is really good at showing me what I want... and I don't even have an account.
It's off, but maybe not as much as I'd have guessed.

CDC estimates for the USA is 4.9%.

https://www.cdc.gov/coronavirus/2019-ncov/cases-updates/burd...
Show HN: App delivery service that runs as a code dependency
We're building an application delivery service - think Load Balancer & CDN - that runs as a code dependency. Your web app becomes a single source of truth of how traffic should be delivered to it, just like containers do with the code dependencies.

Happy if you try it out on some of your pet projects!
Linear looks like a clone of ClickUp (which we settled on) and I'd recommend checking it out too.
Migrants won't be allowed to die in the streets from starvation in large numbers. People just won't tolerate it and will insist on either keeping them out or paying to support them.
Isn't "space-separated words" a syntax, albeit a minimal one?
> It’s time for kernel level permissions to be standard on desktops.

And then the games industry starts deploying vulnerability-as-a-service kernel modules in order to bypass all of those controls.

https://mobile.twitter.com/TheWack0lian/status/7793978407622...
There are plenty of experiments on this, testers opened new accounts and almost immediately they had hundreds of viewers, but when asked to repond in exchange for cash, no one did.

I mean, what's stopping them from doing this, everyone seems to be happy about it.

Initially they called these numbers "viewer count", but apparently it got too embarrassing even for themselves, one streamer reached 5.9 billion. Then they call it "popularity index" since everybody knew it's fake.
Are you paying market prices?
Is it Kialo: https://www.kialo.com/
Important to stress here: mRNA vaccines do not modify your DNA.
...or that USDT:USD has never been priced based on fundamentals.

It's simple and easy to do this when one entity has control of both the currency minting and the market pricing mechanism.

In other words, USDT would be an ideal mechanism for perpetrating widespread fraud in the crypto marketplace, one that would likely never be tolerated in "regulated" markets.

Note that USDT is underpinning the entire crypto marketplace --- the majority of bitcoin and other crypto trades involve USDT.
I probably won't pick CS as my undergrad study if I haven't used dreamweaver to create website for my classmate when I was just 12 years old (hand-type html, css is a bit much for me that time. And Dw allows your to set hyperlink, an on hover event easily, js is hard to grasp for me that time ) .

So I always think it's good to have a low barrier for people to get in.
And everything crumble down when I've stood my ground against "we have other motivated candidates" and my backup alternatives turned out to be a complete mess upon further inspection, started back pedaling on previously agreed terms (written but not signed), and just simply ghosted me.

Oh well.
I'm a programming language design geek... Out of curiosity, could you explain some of the ways you've been bitten by implicits?
I wonder how significant it is that there is all this worldwide expansion of chip making factories just as we get to 3nm architectures, I say that because there aren’t very many nm’s left, what happens when we get to zero?
Nu Scorpii
TikTok already does have ads/monetization.
I'm glad UTF16 is (albeit slowly) going the way of the dodo by becoming just an internal representation for a few older toolkits and programming languages. It was incredibly nonsensical how inconvenient it was compared to UTF8. At least in UTF8 you can't do the extremely wrong assumption that 1 (w)char == 1 character, or rather, you can do that but it will explode on your hands way sooner than with UTF16.

Even though, I must say that the fact that now Windows puts a useless BOM at the beginning of every file is very annoying.
How does that not run afoul of first amendment rights? For example if I wanted to advertise my political view on a sign mounted on my land, would that really be something the state Dan block?
These fabs are already there, it would mainly be increasing capacity.
I'm not objecting. Just pointing out that they typically don't insert unqualified facts or opinions. I think that's good. But with political issues, they now do sometimes.
I get your point, but disagree. I agree mpl is very powerful and you can do almost anything with it, but the biggest problem with mpl is the default behaviour for many things is just plain horrible. Take subplots, axis labels and ticks. By default pretty much any attempt will yield overlapping/obscured labels or way too much whitespace. Tight_layout helps a bit but in my experience you essentially have to manually tweak spacing and margins every time.

Similarly things like traditional x/y plots with a centre axis with arrows are much harder than they should be (it can be done but is really quite a bit of hassle).

And there are lots of other, similar issues. I suspect the OP is correct and it will be very difficult to replace mpl for producing publish quality plots (I think for interactive plots it's much easier and already done), despite it's shortcomings, because it is so powerful.
Entrepreneurship a Leap of Faith
You definitely have your own definition of horrific.
If you prefer a narrative (+lots of pictures) I found out about Rosen Crator when I walked by Smithsonian magazine at the library, here’s the article an an excerpt

https://www.smithsonianmag.com/arts-culture/james-turrell-vi...

“One of the tunnels that Turrell has completed is 854 feet long. When the moon passes overhead, its light streams down the tunnel, refracting through a six-foot-diameter lens and projecting an image of the moon onto an eight-foot-high disk of white marble below. The work is built to align most perfectly during the Major Lunar Standstill every 18.61 years. The next occurrence will be in April 2025.”
I was referring to the GP's statement "The brutal policy that was applied to non-Europeans".
Kinda funny that this was submitted with an http: URL, given that .new is one of the very few HTTPS-only TLDs. (That is, the whole TLD it’s on the HSTS preload list.)

.new is altogether a weird TLD experiment. Over $400 per year, and you can basically only use it as a short URL to somewhere on your own site that creates something. (See the rules at https://www.registry.google/policies/registration/new/.) If you don’t think https://dashboard.stripe.com/invoices/create is nice enough (that being what https://invoice.new redirects to), why not instead do something like https://stripe.com/new/invoice? It’s cheaper, probably requires less maintenance, and is a URL that I can be confident about, because it’s on stripe.com rather than “invoice.new” which could be considered an untrustworthy domain.

When I say untrustworthy: how can you tell whether invoice.new is controlled by Stripe? The only two possibilities I can think of are whois records and name servers. Whois is unsurprisingly completely useless here (it’s all “REDACTED FOR PRIVACY”). Name servers are of the form ns-*.awsdns-*.* which I presume is AWS. I’m not familiar with what AWS DNS servers are, but it’s the same set of four as stripe.com, which is a good sign. So I’m going to assume that yes, this is run by Stripe. But a phishing attack is quite plausible: someone registers invoice.new, making it redirect to Stripe, socially engineers a lowly employee they have connections with into making mention of it in docs or product or something, increasing in scale over time until it’s common knowledge and thought to be official by employees and public alike (still trying to sneak under the radar a bit to avoid notice by someone who actually controls Stripe’s domains); and then finally, stop redirecting and start serving a counterfeit login page.

(On the HTTP point, there are typically 0–2 http: links on the HN front page out of 30, with old things overrepresented. Plus the Legal and Apply to YC links in the footer are http: but should be https:. On the topic of unwisely-http: links, it’s very common in marketing/transactional emails, which is sometimes concerning when you have sensitive information and potentially auth tokens in the URLs. I notice these things because I have Firefox’s HTTPS-only mode enabled and a user stylesheet via Stylus, `:link[href^="http:"]::after { content: " [http]"; color: red; text-decoration: none; }`, because I’m curious.)
You could also use a decidedly low tech solution - putting UV bulbs in the way of air flow (like fans): https://www.cnet.com/home/smart-home/uv-light-and-the-corona...
I've always joked about this happening (the old joke about the boy with the golden screw in his navel) and now, through the miracle of science, it has become reality.

"Now I am become Shiva, the destroyer of butts." is what first occurred to me. Butt perhaps I should look on the brighter side of things.
> If it were up to me, we would be devoting to it at least as many resources as were devoted to COVID, indefinitely until it's fixed.

That. Governments around the world didn't hesitate on committing huge amounts of money and draconian, even devastating restrictions on society to fix what kills at most 3%. But what kills 95% of people--aging--doesn't get nearly the same obsession and resources. Worse, scientists who research aging need to apply for grants to research cancer or Alzheimer's, which is sad and silly when you think that the same money could be used to cure cancer, Alzheimer's and a broad variety of other diseases if we didn't have these taboos around the science of aging.

Most people don't dare to think that aging is solvable, and a 99.9% of books I read, even science fiction that happens 200 years into the future, adopt the same mindset. There are are a few startups, talented scientists, and a "small elite" that thinks different, but they don't get billions in government budget nor around-the-clock media coverage.

At this point, aging is much more a cultural issue than a scientific or technical challenge. After all, we can't fix what we are not trying to fix.
I've done and ran 2 medium sized apps on both iOS and Android and have never ran into such problems. While not impossible, that's akin to saying that if you run the JVM on MacOS vs Linux, there's a chance of different behavior. Possible, but unlikely. It shouldn't be a show-stopper for most situation.
Children aren't remotely comparable to yaughts.

Being a child is the way every single citizen starts life, and how they do in that period has dramatic influence on the rest of their lives. Society can't afford to leave all that only up to parents.

You made a choice to not have kids, did you also make the choice to never interact with anybody else again? Because those people are only there because their parents chose to have kids, and you have an interest in how they turned out.
No, it is anniversary Rest of the World https://restofworld.org/one-year/